Indirect Purchaser v. Samsung Electronics Co., Ltd. ( 2022 )


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  •                 FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    IN RE DYNAMIC RANDOM ACCESS              No. 21-15125
    MEMORY (DRAM) INDIRECT
    PURCHASER ANTITRUST LITIGATION,            D.C. No.
    4:18-cv-02518-
    JSW
    INDIRECT PURCHASER PLAINTIFFS,
    Plaintiff-Appellant,
    OPINION
    v.
    SAMSUNG ELECTRONICS CO., LTD.;
    SAMSUNG SEMICONDUCTOR, INC.;
    MICRON TECHNOLOGY, INC.;
    MICRON SEMICONDUCTOR
    PRODUCTS, INC.; SK HYNIX, INC.; SK
    HYNIX AMERICA, INC.,
    Defendants-Appellees.
    Appeal from the United States District Court
    for the Northern District of California
    Jeffrey S. White, District Judge, Presiding
    Argued and Submitted December 7, 2021
    Pasadena, California
    Filed March 7, 2022
    2        IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    Before: William A. Fletcher and Johnnie B. Rawlinson,
    Circuit Judges, and Cathy Ann Bencivengo, * District
    Judge.
    Opinion by Judge Bencivengo
    SUMMARY **
    Antitrust
    The panel affirmed the district court’s dismissal of an
    action alleging an antitrust conspiracy under Section 1 of the
    Sherman Act by manufacturers of dynamic random access
    memory, a type of semiconductor memory used to store data
    in digital electronic devices.
    The panel held that to state a plausible claim, plaintiffs
    bringing a Section 1 claim, particularly those relying on
    evidence of parallel business conduct to establish a
    conspiracy, must plead “some further factual enhancement”
    that places their allegations of parallel conduct in a context
    suggesting a preceding agreement. Plaintiffs based their
    conspiracy theory on defendants’ parallel business conduct
    of contemporaneously reducing their DRAM production, as
    well as various “plus factor” allegations that they claimed
    further suggested a preceding agreement. Considering eight
    plus factors identified by plaintiffs, both in turn and
    *
    The Honorable Cathy Ann Bencivengo, United States District
    Judge for the Southern District of California, sitting by designation.
    **
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION    3
    cumulatively, the panel that plaintiffs’ allegations did not
    amount to the “something more” required to make their
    claims plausible.
    COUNSEL
    Steve Berman (argued), Hagens Berman, Seattle,
    Washington; Benjamin J. Siegel and Rio Pierce, Hagens
    Berman, Berkeley, California; for Plaintiff-Appellant.
    Ian Simmons (argued), O’Melveny & Myers LLP,
    Washington, D.C.; Stephen McIntyre and Kurt C. Brown,
    O’Melveny & Myers LLP, Los Angeles, California; Brian P.
    Quinn, O’Melveny & Myers LLP, Washington; for
    Defendants-Appellees Samsung Electronics Co., Ltd.; and
    Samsung Semiconductor, Inc.
    Harrison (Buzz) Frahn, Simpson Thacher & Bartlett LLP,
    Palo Alto, California; Abram Ellis and Jonathan D. Porter,
    Simpson Thacher & Bartlett LLP, Washington, D.C.; for
    Defendants-Appellees Micron Technology, Inc.; and Micron
    Semiconductor Products, Inc.
    Nathan P. Eimer, Vanessa G. Jacobsen, and Brian Y.Chang,
    Eimer Stahl LLP, Chicago, Illinois, for Defendants-
    Appellees SK Hynix, Inc.; and SK Hynix America, Inc.
    4    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    OPINION
    BENCIVENGO, District Judge:
    The standard for surviving a motion to dismiss under
    Rule 12(b)(6) is a familiar one: a complaint must contain
    sufficient factual matter, accepted as true, to state a claim to
    relief that is plausible on its face. Ashcroft v. Iqbal, 
    556 U.S. 662
    , 678 (2009) (quoting Bell Atl. Corp. v. Twombly,
    
    550 U.S. 544
    , 570 (2007)). However, for plaintiffs bringing
    a claim under Section 1 of the Sherman Act—particularly
    those relying on evidence of parallel business conduct to
    establish a conspiracy—stating a plausible claim requires
    something more. Such plaintiffs must plead “some further
    factual enhancement” that places their allegations of parallel
    conduct in a context suggesting a preceding agreement. See
    Twombly, 
    550 U.S. at 557
    .
    Plaintiffs ask us to infer that Defendants, three of the
    largest global manufacturers of dynamic random access
    memory (“DRAM”), conspired to coordinate their actions
    when they contemporaneously reduced their DRAM
    production in 2016. Plaintiffs base their theory on
    Defendants’ parallel business conduct and various “plus
    factor” allegations that they claim further suggest a
    preceding agreement. While both parties’ explanations for
    Defendants’ actions are conceivable, Plaintiffs do not allege
    additional facts that push their theory over “the line between
    possibility and plausibility.” 
    Id.
     Because Plaintiffs’
    allegations do not amount to the “something more” required
    by our precedent to make their claims plausible, we affirm
    the judgment of the district court dismissing Plaintiffs’
    amended complaint.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION    5
    I. Background
    DRAM is a type of semiconductor memory widely used
    to store data in digital electronic devices. Defendants
    Micron Technology, Inc. and Micron Semiconductor
    Products, Inc. (together, “Micron”), Samsung Electronics
    Co., Ltd. and Samsung Semiconductor, Inc. (together,
    “Samsung”), and SK Hynix, Inc. and SK Hynix America,
    Inc. (together, “SK Hynix”) (collectively, “Defendants”)
    manufacture and sell DRAM to original equipment
    manufacturers (“OEMs”), who then incorporate that DRAM
    into various electronic devices. At all relevant times,
    Defendants collectively controlled approximately 96% of
    the global DRAM market, with Samsung holding
    approximately one-half market share and Micron and SK
    Hynix each holding approximately one quarter.
    Prior to 2016, Defendants competed vigorously to grow
    their DRAM supply and capture market share, which led to
    oversupply in the market and declining DRAM prices. In
    late 2015, Samsung unilaterally attempted to stop this price
    erosion by stockpiling DRAM to reduce market supply, but
    its new strategy was unsuccessful and DRAM prices
    continued to decline. In the third quarter of 2016, Samsung
    again unilaterally reduced its DRAM output. However, this
    time Micron and SK Hynix followed suit by cutting their
    own DRAM production rates the following quarter.
    Between June 2016 and December 2017, Defendants
    continued to increase their DRAM production, but at a rate
    lower than the increase in demand during that period.
    Defendants also made various public statements reiterating
    that they would restrict their DRAM supply growth in line
    with other industry participants. As a result of Defendants’
    constraints on supply, DRAM prices soared and Defendants
    earned record-high revenues.
    6    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    In December 2017, China’s antitrust enforcement
    agency, the National Development and Reform Commission
    (“NDRC”), announced that it was investigating increased
    DRAM prices and possible coordinated action among
    Defendants. On February 1, 2018, it was reported that the
    NDRC and Samsung signed a Memorandum of
    Understanding that would moderate DRAM prices,
    signaling the end of the class period. Throughout the
    remainder of 2018, Defendants began to increase their
    DRAM production rate and DRAM prices subsequently fell.
    Appellants Indirect Purchaser Plaintiffs (“Plaintiffs”) are
    a putative class of consumers who purchased electronic
    devices containing DRAM (“DRAM Devices”) from OEMs
    or resellers between June 1, 2016 and February 1, 2018.
    Plaintiffs allege that they overpaid for their DRAM Devices
    because Defendants’ anticompetitive conduct resulted in
    supracompetitive DRAM pricing, which was passed on
    through the distribution chain to consumers.
    Plaintiffs’ amended class action complaint asserts claims
    under Section 1 of the Sherman Act, California’s Cartwright
    Act, and the laws of six states relating to antitrust, consumer
    protection, and unfair competition. Defendants moved to
    dismiss the amended complaint under Federal Rule of Civil
    Procedure 12(b)(6) for failure to state a conspiracy claim.
    The district court dismissed Plaintiffs’ claims brought under
    the Sherman Act, the Cartwright Act, and California’s and
    Florida’s unfair competition laws with prejudice, finding
    that Plaintiffs’ allegations failed to raise a reasonable
    inference of conspiracy.        The district court allowed
    Plaintiffs’ remaining state law claims for antitrust violations
    to proceed.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION      7
    The parties later requested entry of judgment on the
    remaining state law claims, arguing that the district court’s
    finding that Plaintiffs failed to plead a conspiracy disposed
    of those claims as well. The district court agreed, entering
    judgment in favor of Defendants and against Plaintiffs on all
    remaining claims. Plaintiffs timely filed this appeal.
    II. Discussion
    We exercise appellate jurisdiction under 
    28 U.S.C. § 1291
    . We review de novo the district court’s dismissal of
    a complaint for failure to state a claim under Rule 12(b)(6).
    Dougherty v. City of Covina, 
    654 F.3d 892
    , 897 (9th Cir.
    2011).     In conducting this review, we accept all
    nonconclusory facts alleged in the complaint as true and
    determine whether those allegations “plausibly give rise to
    an entitlement to relief.” Iqbal, 
    556 U.S. at 679
    .
    Section 1 of the Sherman Act prohibits “[e]very contract,
    combination in the form of trust or otherwise, or conspiracy,
    in restraint of trade or commerce among the several States,
    or with foreign nations.” 
    15 U.S.C. § 1
    . To state a claim
    under Section 1, a plaintiff must allege facts showing “(1) a
    contract, combination or conspiracy among two or more
    persons or distinct business entities; (2) by which the persons
    or entities intended to harm or restrain trade or commerce
    . . . ; (3) which actually injures competition.” Kendall v.
    Visa U.S.A., Inc., 
    518 F.3d 1042
    , 1047 (9th Cir. 2008). The
    “crucial question” prompting Section 1 liability is “whether
    the challenged anticompetitive conduct ‘stems from [lawful]
    independent decision or from an agreement, tacit or
    express.’” Twombly, 
    550 U.S. at 553
     (quoting Theatre
    Enter., Inc. v. Paramount Film Distrib. Corp., 
    346 U.S. 537
    ,
    540 (1954)). Therefore, a claim brought under Section 1
    must contain sufficient factual matter, taken as true, to
    8    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    plausibly suggest that an illegal agreement was made. 
    Id. at 556
    .
    Plaintiffs relying on allegations of parallel conduct to
    establish a Section 1 claim face an additional burden when
    defending against Rule 12(b)(6) motions. Generally, when
    a plaintiff alleges facts consistent with both the plaintiff’s
    and the defendant’s explanation, and both explanations are
    plausible, the plaintiff survives a motion to dismiss under
    Rule 12(b)(6). See Starr v. Baca, 
    652 F.3d 1202
    , 1216 (9th
    Cir. 2011). However, in the antitrust context, allegations of
    conspiracy often arise from parallel conduct among business
    competitors “that could just as well be [lawful] independent
    action.” Twombly, 
    550 U.S. at 557
    . Therefore, to state a
    plausible Section 1 claim, plaintiffs must include additional
    factual allegations that place that parallel conduct in a
    context suggesting a preceding agreement. 
    Id.
     In other
    words, plaintiffs must allege something more than conduct
    merely consistent with agreement in order to “nudge[] their
    claims across the line from conceivable to plausible.” 
    Id. at 570
    . This higher standard is warranted by practical
    considerations in antitrust cases, where proceeding to
    discovery “frequently causes substantial expenditures and
    gives the plaintiff the opportunity to extort large settlements
    even where he does not have much of a case.” Kendall,
    
    518 F.3d at 1047
    .
    A. Parallel Conduct
    Plaintiffs purport to establish an unlawful conspiracy by
    alleging parallel business conduct among Defendants and
    additional plus factors discussed below. The district court
    found that Plaintiffs adequately established parallel conduct
    by alleging that Defendants contemporaneously restricted
    their DRAM production during the class period, and neither
    party disputes this finding on appeal. Rather, the parties
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION              9
    focus on whether the amended complaint alleges sufficient
    plus factors to plausibly suggest that Defendants’ parallel
    conduct arose from an agreement rather than independently.
    B. Plus Factors
    In the absence of direct evidence of an agreement, certain
    plus factors may elevate allegations of parallel conduct to
    plausibly suggest the existence of a conspiracy. See In re
    Musical Instr. and Equip. Antitrust Litig., 
    798 F.3d 1186
    ,
    1194 (9th Cir. 2015). Plus factors are often “economic
    actions and outcomes that are largely inconsistent with
    unilateral conduct but largely consistent with explicitly
    coordinated action.” 
    Id.
     Under the Twombly standard, plus
    factors serve as the “something more” to place parallel
    conduct “in a context that raises a suggestion of a preceding
    agreement.” Twombly, 
    550 U.S. at 557
    .
    Plaintiffs identify eight plus factors that they contend
    place Defendants’ parallel conduct in a context suggesting
    conspiracy: (1) price signaling; (2) complex, simultaneous,
    and historically unprecedented decreases in capital
    investment; (3) supply cuts against Defendants’ self-interest;
    (4) public statements encouraging supply cuts; (5) changed
    conduct between the start and end of the class period;
    (6) information exchanges between Defendants regarding
    future supply and demand; (7) high market concentration;
    and (8) prior criminal convictions for price fixing. 1 The
    district court found that these allegations suggest
    Defendants’ conduct arose not from agreement, but rather
    1
    At oral argument, Plaintiffs identified four of these purported plus
    factors—the second through fifth factors listed here—as being most
    indicative of conspiracy.
    10 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    from lawful conscious parallelism. 2 We consider each
    purported plus factor in turn and cumulatively to determine
    whether Plaintiffs’ allegations amount to stating a plausible
    claim under Section 1.
    1. Price Signaling
    Plaintiffs allege that in early 2016, Samsung attempted
    to signal to the other Defendants that it was raising its prices
    on DRAM. Plaintiffs claim that a Samsung executive
    instructed another executive to leak that Samsung was
    raising DRAM prices, intending that Samsung’s competitors
    would learn of its plan and follow suit. Plaintiffs allege that
    the information was leaked to an industry analyst, and
    DRAM prices began to rise shortly thereafter.
    Plaintiffs’ price signaling allegations do not support a
    plausible inference of conspiracy. Plaintiffs claim that
    Defendants conspired to restrict their DRAM supply growth
    (with the eventual effect of higher DRAM prices), not to
    increase DRAM prices. Leaked information about raising
    prices does not reasonably signal to competitors to reduce
    DRAM production. Moreover, Plaintiffs do not allege that
    Micron or SK Hynix saw Samsung’s leaked information and
    acted on it. Only concerted activity is actionable under
    Section 1. 
    15 U.S.C. § 1
    . Thus, even if Samsung intended
    to signal the other Defendants to raise prices, Samsung’s
    unilateral action does not suggest a conspiracy under the
    Sherman Act.
    2
    Conscious parallelism occurs when two or more firms in a
    concentrated, interdependent market base their actions in part on the
    anticipated reactions of their competitors, and thus “arrive at identical
    decisions independently, as they are cognizant of—and reacting to—
    similar market pressures.” Musical Instr., 798 F.3d at 1193.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION            11
    2. Contemporaneous             Decreases        in    Capital
    Investment
    “[C]omplex and historically unprecedented changes in
    pricing structure made at the very same time by multiple
    competitors, and made for no other discernible reason . . .
    support a plausible inference of conspiracy.” Twombly,
    
    550 U.S. at
    556 n.4. Plaintiffs contend that this plus factor
    is met because Defendants reduced their capital expenditures
    (“capex”) toward DRAM supply growth within a few
    months of each other, which was unprecedented amidst high
    profitability in the industry. Specifically, Plaintiffs allege
    that in April 2016, first Samsung and then SK Hynix stated
    on quarterly earnings calls that industry capex would decline
    that year. The following month, Micron’s CEO stated that
    news of competitors’ decreased capex was “relatively
    encouraging” and that he expected “slowing bit growth” in
    the industry, implying that Micron, too, would decrease its
    DRAM capex.
    Defendants’ alleged actions are more consistent with
    conscious parallelism than with the plus factor recognized
    by the Twombly court. SK Hynix and Micron’s capex cuts
    following Samsung’s announcement align with a “follow the
    leader” theory of conscious parallelism, 3 as they could have
    independently and rationally reached the same decision to
    follow market leader Samsung. We have recognized that
    “[e]ven assuming that the progressive adoption of similar
    policies across an industry constitutes simultaneity, that fact
    3
    Under a “follow the leader” theory, if one firm in an interdependent
    market makes a risky business move and its competitors follow, all firms
    will benefit and “supracompetitive prices and other anticompetitive
    practices, once initiated, can spread through a market without any prior
    agreement.” Musical Instr., 798 F.3d at 1195.
    12 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    does not reveal anything more than similar reaction to
    similar pressures within an interdependent market, or
    conscious parallelism.” Musical Instr., 798 F.3d at 1196.
    Thus, Plaintiffs have not established that Defendants’ capex
    changes were “made for no other discernible reason” than
    collusion. Twombly, 
    550 U.S. at
    556 n.4.
    Nor have Plaintiffs plausibly alleged that Defendants’
    capex changes were “complex” or “historically
    unprecedented.” See 
    id.
     Plaintiffs provide no evidence
    showing that capex reductions were complex for Defendants
    to implement. The amended complaint only includes
    statements from Samsung and SK Hynix indicating that
    increasing DRAM supply would be difficult. Further, while
    Plaintiffs contend that Samsung and SK Hynix’s capex cuts
    were unprecedented because the industry was highly
    profitable at the time, this argument is contradicted by their
    allegation that DRAM prices “declined steadily and
    precipitously” until May 2016.
    Plaintiffs’ allegations reflect that Defendants reduced
    their capex toward DRAM supply growth independently in
    response to market pressures, and Plaintiffs point to nothing
    about these reductions suggesting a preceding agreement.
    This purported plus factor is more suggestive of lawful
    conscious parallelism than conspiracy.
    3. Supply Cuts Against Self Interest
    Next, Plaintiffs allege that Defendants’ supply cuts were
    “so perilous in the absence of advance agreement that no
    reasonable firm would make the challenged move without
    such an agreement,” which we have previously recognized
    as a plus factor. Musical Instr., 798 F.3d at 1195. Plaintiffs
    claim that Samsung’s unilateral production cuts in the third
    quarter of 2016 “would have been irrational without
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION      13
    knowledge that [Samsung’s] rivals would . . . also decrease
    output.” By restricting its production, Samsung allegedly
    lost $47 million in immediate profits and five percent of total
    market share. Plaintiffs also allege that Micron and SK
    Hynix’s subsequent production cuts were against their self-
    interest, “as they would have gained market share and
    significant profits” if they had maintained or increased their
    output following Samsung’s announcement. Plaintiffs state
    that “Micron and [SK] Hynix sacrificed respectively
    $30 million and $27 million in lost profits by failing to
    maintain their output growth rate.”
    The plausibility of Plaintiffs’ theory is undercut by other
    allegations in the amended complaint. First, Plaintiffs allege
    that Samsung unilaterally—without prior agreement—first
    restricted its market supply in late 2015. Although this
    attempt to stop price erosion was unsuccessful, Samsung still
    remained the DRAM market leader, showing that restraining
    supply without an agreement was not as perilous as Plaintiffs
    claim. Second, Plaintiffs allege that Samsung again
    unilaterally restricted supply growth in the third quarter of
    2016, but Micron and SK Hynix did not follow suit until the
    next quarter. The timing of Micron and SK Hynix’s actions
    are more indicative of the “follow the leader” theory than an
    advance agreement to restrain production simultaneously.
    See Musical Instr., 798 F.3d at 1195. Micron’s CEO’s
    comment that it would be “foolish [for Micron] to be the first
    ones to take capacity off” further reflects that as a non-leader
    in the industry, it would be economically wise for Micron to
    follow the market leader’s actions.
    Moreover, while Plaintiffs claim that it would have been
    in Micron and SK Hynix’s best interest to capture
    Samsung’s lost market share, it was also economically
    rational for the two smaller manufacturers to follow
    14 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    Samsung’s lead and focus on profitability. Prior to the class
    period, Defendants’ vigorous competition on market share
    had caused DRAM supply to exceed demand and prices to
    decline, affecting all Defendants’ profitability. However,
    once Samsung lowered its DRAM production and the other
    Defendants followed suit, market demand for DRAM
    exceeded its growth rate. As a result, Plaintiffs allege that
    DRAM prices increased and Defendants’ revenue from
    DRAM sales “skyrocketed” to record-high levels.
    The amended complaint also includes statements from
    industry analysts that reflect the economic rationality of
    production cuts. For example, in March 2016, an analyst
    asked Micron’s CEO: “Pricing is going to continue to be
    weak until Micron and the DRAM industry overall cuts
    production. So . . . what will it take for that to happen?”
    Similarly, in June 2016, an analyst from Deutsche Bank
    reported that they were “encouraged” by Defendants’
    strategy of decreasing DRAM capex and emphasizing the
    “importance of profitability.”
    Plaintiffs have not established that Defendants’ supply
    cuts were the “extreme action against self-interest”
    contemplated by this circuit as a plus factor. See Musical
    Instr., 798 F.3d at 1195. Rather, Plaintiffs’ allegations
    demonstrate that it was economically rational for Samsung
    to reduce its supply growth below demand levels and for
    Micron and SK Hynix to maintain production commensurate
    with the market leader. Without some further factual
    allegations to suggest a preceding agreement, this purported
    plus factor does not plausibly support a conspiracy claim.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION          15
    4. Public Statements Encouraging Supply Cuts
    Plaintiffs next allege that Defendants made various
    public statements throughout the class period encouraging
    each other to restrain DRAM supply and reassuring each
    other following supply cuts. Plaintiffs first characterize
    Micron’s statement on March 30, 2016, that it would “be
    foolish [for Micron] to be the first ones to take capacity off”
    as inviting the other Defendants to cut production, coupled
    with a “clear reassurance that Micron would not try to take
    DRAM market share” if they did. Plaintiffs allege that both
    Samsung and SK Hynix responded to this invitation within
    a month when they publicly stated that they would decrease
    their DRAM capex in 2016. Plaintiffs also point to various
    other statements made by Defendants—mostly during
    investor calls, presentations to industry groups, and/or in
    response to investor and analyst questions—regarding
    market predictions and strategies as support for this claimed
    plus factor.
    Defendants’ statements reproduced in the amended
    complaint are largely consistent with unilateral conduct in
    an interdependent market. If no conspiracy existed,
    Defendants would likely make the same public statements
    about their observations, predictions, and strategies for the
    future, particularly in response to investor and analyst
    questions. For example, Micron’s March 2016 statement
    that it would “be foolish [for Micron] to be the first ones to
    take capacity off” was made in response to an analyst’s
    question about the possibility of supply cuts in the DRAM
    industry. 4
    4
    Micron’s CEO’s statements were made in response to an investor
    analyst who asked, “Pricing is going to continue to be weak until Micron
    16 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    Plaintiffs allege that Micron’s statements in May and
    June 2017 about the benefits of exercising “capital
    discipline” were intended to encourage its competitors to
    continue restraining production. However, Plaintiffs point
    to nothing suggesting that Samsung or SK Hynix were
    influenced by Micron’s praise. In January 2016—long
    before Micron’s statements at issue—Samsung stated that it
    would grow its supply “at market growth levels” and that its
    main focus for the year would be “on profitability rather than
    increasing volume.” Samsung reiterated its intent to follow
    this approach in late 2016 and throughout 2017. 5 Samsung’s
    supply reductions were thus consistent with its unilateral
    statements of intent made both before and after Micron’s
    alleged invitation. As for SK Hynix, Plaintiffs merely allege
    that SK Hynix made a general observation following
    Samsung’s announcement regarding capex reductions that
    “DRAM suppliers’ capex execution is projected to decrease”
    in 2016. SK Hynix then commented in January 2017 that it
    was “planning for a DRAM bit shipment growth that [was]
    on par with the market for this year.” These statements are
    consistent with participants in an oligopolistic market
    employing similar strategies in reaction to the same market
    events. See Musical Instr., 798 F.3d at 1196.
    Defendants’ public statements are largely consistent
    with independent business conduct in a concentrated market,
    and the DRAM industry overall cuts production. So . . . what will it take
    for that to happen?”
    5
    For example, Plaintiffs allege that on October 27, 2016, Samsung
    executive Sewon Chun stated on a quarterly earnings call: “[W]e are
    expecting our growth rates to come down and be in line with market bit
    growth in DRAM next year. . . . Once again, as we have always
    mentioned, regarding DRAM, our focus is not to increase our market
    share but to maximize our profits.”
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION     17
    and Plaintiffs have not alleged facts suggesting otherwise.
    This plus factor does not support a plausible inference of
    conspiracy.
    5. Changed Conduct from Start to End of
    Conspiracy Period
    Plaintiffs’ fifth purported plus factor claims that
    Defendants’ conduct changed between the start and end of
    the alleged conspiracy. Plaintiffs allege that before the class
    period, Defendants engaged in “vigorous supply and price
    competition,” but during the class period they began
    coordinating their actions and limiting market supply.
    Plaintiffs also assert that Micron repeatedly predicted that
    DRAM supply and growth rates would be about equal in
    2015, but began forecasting lower supply than demand in
    2016. Finally, Plaintiffs claim that DRAM prices drastically
    increased once Defendants began coordinating their supply
    decisions, but increases “abruptly stopped in early 2018”
    after the NDRC announced that it reached an agreement with
    Samsung.
    Plaintiffs’ allegations regarding Defendants’ behavior at
    the start of the class period are consistent with conscious
    parallelism in an interdependent market.            Samsung
    unilaterally announced its intent to stop competing on
    market share and begin focusing on profitability prior to the
    class period. Samsung then publicly reaffirmed its intent to
    focus on profitability over supply growth throughout the
    next two years. The other Defendants, as smaller players in
    the DRAM market, followed Samsung’s lead and stopped
    competing on market share. Micron’s comments regarding
    DRAM market conditions only reflect this industry-wide
    change in strategy.
    18 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    Defendants’ alleged change in conduct at the end of the
    class period is also consistent with conscious parallelism.
    Plaintiffs claim that in February 2018, Samsung agreed to
    increase its DRAM manufacturing capacity as part of its
    agreement with the NDRC. Two months later, SK Hynix
    announced that it was adding six to seven percent wafer
    capacity per year to meet demand, and in November 2018, a
    third-party firm reported that the “DRAM market has just
    entered oversupply.” While Defendants’ change in conduct
    could conceivably have resulted from the NDRC uncovering
    a conspiracy, it is also consistent with Samsung increasing
    its DRAM production either for some business reason or as
    required by its agreement with the NDRC, and the other
    Defendants again following suit. Mere speculation is not
    enough to move Plaintiffs’ theory of preceding agreement
    from conceivable to plausible. This purported plus factor,
    standing alone, is insufficient to establish a plausible
    conspiracy.
    6. Information Exchanges Regarding Supply
    and Demand
    Plaintiffs next allege that Defendants had two
    opportunities to exchange information regarding their
    supply plans: first through their participation in the same
    trade associations, and second through communications with
    third-party research firms that produced industry trend
    reports.     Plaintiffs claim that Defendants each sent
    leadership teams to trade organization meetings several
    times a year, which “provided an ideal setting for Defendants
    to discuss future business plans.” Plaintiffs also allege that
    third-party research firms interviewed Defendants’
    employees to prepare their industry reports, which were read
    by SK Hynix and presumably the other Defendants.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION   19
    Plaintiffs do not allege facts demonstrating that
    Defendants actually communicated or exchanged
    information at these trade association meetings, much less
    that they entered an agreement to coordinate supply
    decisions while there. Further, we have recognized that
    “trade associations often serve legitimate functions,” and
    courts are reluctant to infer conspiracy from “[g]athering
    information about pricing and competition in the industry”
    at such meetings. In re Citric Acid Litig., 
    191 F.3d 1090
    ,
    1098 (9th Cir. 1999). As for the research firms, Plaintiffs
    have not alleged that Defendants had any control over what
    was included in their industry reports or that the other
    Defendants read them. Accordingly, this plus factor does
    not support a plausible inference of conspiracy.
    7. High Market Concentration
    Next, Plaintiffs claim that the structure of the DRAM
    market makes it conducive to conspiracy. Plaintiffs assert
    that the DRAM market is highly concentrated with high
    barriers to entry, which makes collusive agreements “easier
    to implement and sustain when there are only a few firms
    controlling a large portion of the market.”
    Extreme market concentration may suggest conspiracy,
    particularly when accompanied by other plausible plus
    factor allegations. See Musical Instr., 798 F.3d at 1197 n.14
    (noting that conspiracy was plausible where top players in
    highly concentrated market implemented identical and
    complex pricing structures simultaneously). However,
    extreme market concentration also makes conscious parallel
    behavior more likely, as firms are “cognizant of—and
    reacting to—similar market pressures.” Id. at 1193. On
    balance, this factual allegation is consistent with both
    parties’ explanations. Because “allegations that are merely
    consistent with conspiracy are not enough,” Plaintiffs must
    20 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    allege some factual support in addition to the DRAM
    market’s structure to plausibly suggest conspiracy. Id.
    at 1197 n.13 (citing Twombly, 
    550 U.S. at 557
    ).
    8. Historic Price Fixing Behavior
    Finally, Plaintiffs point to Defendants’ prior criminal
    convictions for price fixing as “context that raises a
    suggestion of a preceding agreement.” Twombly, 
    550 U.S. at 557
    . Plaintiffs allege that Defendants and other DRAM
    manufacturers held a meeting in fall 2001 where they each
    agreed to reduce their DRAM production in order to raise
    prices. In 2005, the Department of Justice brought criminal
    charges against Defendants for participating in the price
    fixing conspiracy, resulting in guilty pleas, custodial time,
    and large criminal fines for Samsung and SK Hynix.
    Plaintiffs also claim that “many of the same executives
    involved in the prior conspiracy continue to hold senior
    positions” at Defendants’ companies. 6
    District courts in this circuit have found prior conspiracy
    convictions to support an inference of subsequent
    conspiracy, particularly when the prior conspiracy and the
    alleged subsequent conspiracy have factual overlap or
    involve the same actors. See In re Flash Memory Antitrust
    Litig., 
    643 F. Supp. 2d 1133
    , 1149 (N.D. Cal. 2009); see also
    In re SRAM Antitrust Litig., 
    580 F. Supp. 2d 896
    , 903 (N.D.
    Cal. 2008). While the prior conspiracy among Defendants
    occurred approximately twenty years ago, the present
    allegations involve the same alleged coordination and actors.
    6
    Plaintiffs identify three SK Hynix employees and one Micron
    employee who were involved in the 2001 price fixing scheme and were
    still employed by their respective employers during the class period.
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION      21
    Accordingly, this plus factor circumstantially supports
    Plaintiffs’ theory.
    C. Holistic Analysis of Plaintiffs’ Allegations
    Plaintiffs’ proffered plus factors must be evaluated
    holistically to determine whether they state a conspiracy
    claim. See Cont’l Ore Co. v. Union Carbide & Carbon
    Corp., 
    370 U.S. 690
    , 699 (1962) (“The character and effect
    of a conspiracy are not to be judged by dismembering it and
    viewing its separate parts, but only by looking at it as a
    whole.”). While the factual overlap between Defendants’
    prior criminal conduct and the present allegations supports
    Plaintiffs’ theory, the totality of Plaintiffs’ allegations does
    not suggest anything more than conscious parallelism. The
    four plus factors that Plaintiffs contend are most indicative
    of conspiracy—simultaneous capex decreases, “perilous”
    supply cuts, public statements about the market forecast, and
    changed conduct between 2016 and 2018—are all consistent
    with Defendants, as competitors in a highly concentrated
    market, reacting to the same market pressures and taking
    parallel action to serve their interests. Plaintiffs’ remaining
    allegations regarding price signaling, information
    exchanges, and the DRAM market structure do not provide
    convincing support for their claims for the reasons discussed
    above.
    22 IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION
    We recognize that “circumstantial evidence is the
    lifeblood of antitrust law.” United States v. Falstaff Brewing
    Corp., 
    410 U.S. 526
    , 534 n.13 (1973). Plaintiffs bringing a
    claim under Section 1 often must rely on such circumstantial
    evidence of parallel conduct and plus factors to sustain a case
    past the pleading stage. Nevertheless, a single plausible plus
    factor allegation that weakly tips in the plaintiffs’ favor,
    without some further factual support, is not enough to open
    the floodgates to discovery in antitrust cases. See Twombly,
    
    550 U.S. at 559
     (“[I]t is only by taking care to require
    allegations that reach the level suggesting conspiracy that we
    can hope to avoid the potentially enormous expense of
    discovery in cases with no ‘reasonably founded hope that the
    [discovery] process will reveal relevant evidence’ to support
    a § 1 claim.”) (quoting Dura Pharm., Inc. v. Broudo,
    
    544 U.S. 336
    , 347 (2005)).
    Plaintiffs’ allegations of parallel conduct that could just
    as well be independent action, combined with Defendants’
    criminal history from twenty years ago, do not provide a
    context suggesting unlawful agreement. See id. at 557.
    Rather, Defendants’ actions are “more likely explained by
    lawful, unchoreographed free-market behavior” in a
    concentrated industry. Iqbal, 
    556 U.S. at
    680 (citing
    Twombly, 
    550 U.S. at 567
    ). Accordingly, Plaintiffs fail to
    state a plausible claim under Section 1 based on a conspiracy
    to coordinate DRAM supply decisions.
    III.   Conclusion
    Plaintiffs’ factual allegations do not amount to the
    “something more” required to support a plausible inference
    of conspiracy. Dismissal of Plaintiffs’ claims premised on
    IN RE DRAM INDIRECT PURCHASER ANTITRUST LITIGATION                23
    an alleged agreement between Defendants was therefore
    proper. 7
    AFFIRMED.
    7
    Plaintiffs’ remaining state law claims were not raised in this appeal
    and thus are not reviewed here. See Greenwood v. F.A.A., 
    28 F.3d 971
    ,
    977 (9th Cir. 1994) (“We review only issues which are argued
    specifically and distinctly in a party's opening brief.”). Nevertheless,
    Plaintiffs’ claims brought under California’s Cartwright Act, Unfair
    Competition Law, and the antitrust laws of five other states are all
    premised upon the existence of an antitrust conspiracy, and therefore rise
    and fall with the Sherman Act claim. Accordingly, the district court
    properly dismissed Plaintiffs’ remaining claims for failure to plead an
    antitrust conspiracy.