Plaintiffs are participants in the retirement plan for Baxter International’s employees. Each participant exercises some control over the investments in an individual account in this defined-contribution plan, though the plan and its trustees may limit what assets an account may contain and when trading may occur. In this suit *704under the Employee Retirement Income Security Act, plaintiffs contend that Baxter and some of the plan’s trustees have violated § 409(a), 29 U.S.C. § 1109(a), in their capacity as fiduciaries. The defendants’ failing, according to the complaint, is that they allowed participants to invest in Baxter’s stock, despite knowing that it was overpriced in the market and hence a bad deal.
The complaint points to two episodes of decline in the price of Baxter’s stock. One occurred in July 2002, when Baxter announced second-quarter results that fell short of the firm’s projections and the price of its stock immediately fell from $43 to $32. The other occurred in July 2004, when Baxter announced that it would restate recent financial results to correct for a fraud at its Brazilian subsidiary; that announcement led to a drop of $1.48 a share.
Both of these episodes precipitated suits under the securities laws. With respect to the 2002 episode, Asher v. Baxter International Inc., 377 F.3d 727 (7th Cir.2004), held that the complaint could not be dismissed under the defense for forward-looking statements in the Private Securities Litigation Reform Act of 1995, see 15 U.S.C. § 78u-5(c). Since then the district court has held that none of the plaintiffs is eligible to represent a class, see Asher v. Baxter International Inc., 505 F.3d 736 (7th Cir.2007), so that suit is limping along on behalf of a few individual investors. With respect to the 2004 episode, a class was certified in the district court, but Higginbotham v. Baxter International Inc., 495 F.3d 753 (7th Cir.2007), held that plaintiffs failed to satisfy the standard that pslra establishes for pleading scienter. 15 U.S.C. § 78u-4(b)(2); Tellabs, Inc. v. Makor Issues & Rights, Ltd., — U.S.-, 127 S.Ct. 2499, 168 L.Ed.2d 179 (2007). pslra applies, however, only to the Securities Act of 1933 and the Securities Exchange Act of 1934. (Section § 78u-4(b)(2), for example, applies only to a “private action arising under this chapter” of Title 17 — the 1934 Act.) erisa is a different statute, in a different title of the United States Code. Plaintiffs seek to use erisa to recover for events that as a result of pslra could not support an action on behalf of shareholders at large.
In order to pursue a claim under § 409(a) of erisa, the participants first need a private right of action. They invoked § 502(a)(2) of erisa, 29 U.S.C. § 1132(a)(2), which says that suit may be brought “by the Secretary [of Labor], or by a participant, beneficiary or fiduciary for appropriate relief under section 1109 of this title.” Relying on Massachusetts Mutual Life Insurance Co. v. Russell, 473 U.S. 134, 105 S.Ct. 3085, 87 L.Ed.2d 96 (1985), defendants asked the district court to dismiss the suit. Russell holds that participants in a defined-benefit plan may use § 502(a)(2) only when the loss is incurred by the plan as an entity. These participants suffered losses in their individual accounts; other participants whose accounts did not contain Baxter’s stock were unaffected. The district court denied the motion to dismiss, 417 F.Supp.2d 974 (N.D.I11.2006), but certified the decision for interlocutory review under 28 U.S.C. § 1292(b), and we accepted the appeal. Proceedings were put on hold while Higginbotham was under advisement. Then, after the Supreme Court granted certiorari in a case that presented questions about the application of Russell to defined-contribution plans, we called for supplemental briefs. Oral argument was held last fall, but we deferred action until the Supreme Court released its opinion. This appeal is at last ready for decision.
LaRue v. DeWolff Boberg & Associates, Inc., — U.S.-, 128 S.Ct. 1020, *705169 L.Ed.2d 847 (2008), holds that § 502(a)(2), and thus § 409(a), may be used by the beneficiary of a defined-contribution account that suffers a loss, even though other participants are uninjured by the acts said to constitute a breach of fiduciary duty. See also Harzewski v. Guidant Corp., 489 F.3d 799 (7th Cir. 2007). That pretty much disposes of this appeal.
All that remains is defendants’ insistence that participants not be allowed to use ERIsa to get around limits added to the securities laws by pslra. Defendants are wrong, for two reasons.
First, this is not a securities suit. It is an action against fiduciaries of a pension plan. To prevail, the participants must show that defendants breached the duties they owed as fiduciaries of pension funds, not whatever duties Baxter and its managers owed to investors at large. The sets of potentially responsible parties overlap only incidentally. The defendants in securities actions are those who made the fraudulent statements to the public or caused them to be made; the defendants in this action are those empowered to take decisions on behalf of the pension plan. Pension fiduciaries are liable, or not, depending on what they know and what duties they have under trust law; that Baxter may have tried to deceive investors as a whole would not translate directly to liability for trustees of Baxter’s pension plan. Baxter itself is a defendant, and its liability in a securities action may depend on what its managers knew collectively, or what it is responsible for under 15 U.S.C. § 78t(a); the rules for attributing knowledge under erisa may or may not be the same, an issue that the parties have not addressed.
Second, pslra does not amend or supersede erisa. It is limited, as we have mentioned, to the securities laws. Unless one law expressly repeals or supersedes another, or the two create inconsistent demands, both must be enforced. See, e.g., Branch v. Smith, 538 U.S. 254, 273, 123 S.Ct. 1429, 155 L.Ed.2d 407 (2003); J.E.M. Ag Supply, Inc. v. Pioneer Hi-Bred International, Inc., 534 U.S. 124, 141-44, 122 S.Ct. 593, 151 L.Ed.2d 508 (2001); Randolph v. IMBS, Inc., 368 F.3d 726 (7th Cir.2004). Nothing in the 1995 amendments to the securities laws either refers to erisa or affects how trustees fulfil their duties under § 409(a).
All we hold today is that participants in defined-contribution plans may use § 502(a)(2), and thus § 409(a), to obtain relief if losses to an account are attributable to a pension plan fiduciary’s breach of a duty owed to the plan. Plaintiffs will need to establish that defendants knew the bad news in 2002 and 2004 and that, as a result, they had a duty under erisa (which incorporates normal rules of trust law) to prevent participants from investing retire-, ment funds in Baxter’s stock. One question will be whether pension fiduciaries are obliged to allow or prevent investments for blocks of weeks or months at a time (when Baxter or some other stock is “overpriced”), rather than making decisions based on long-run considerations. People who pursue a buy-and-hold strategy, one particularly appropriate for pension investments, are unaffected by the volatility in market prices that accompanies the announcement of particular pieces of good and bad news. (Although retirees who draw on their pension portfolio in the immediate wake of bad news may be injured, plaintiffs have not advanced any arguments directed to this subclass of all pension participants.)
Plaintiffs maintain that defendants should not have allowed investment in Baxter’s stock at any time. That avoids the problem we have mentioned, but to *706recover on this theory plaintiffs must demonstrate that Baxter’s stock always is overpriced, and that defendants know it. That amounts to an assertion that pension fiduciaries have a duty to outsmart the stock market, a contention with little prospect of success. See Nelson v. Hodowal, 512 F.3d 347 (7th Cir.2008). Anyway, if Baxter’s stock is always priced too high, pension participants will be the winners. Plaintiffs fear a collapse tomorrow, but if professional investment managers can’t outsmart the stock market, judges can’t either.
This is not to say that the price of all well-followed stocks is efficient in the sense of being right; it is only to say that investment managers who lack inside information rarely beat the market consistently. See Burton G. Malkiel & John G. Cragg, Expectations and the Structure of Share Prices (1982). Perhaps the defendants in this litigation did have inside information, but could they use it for plaintiffs’ benefit? Plaintiffs’ position seems to be that pension trustees are obligated to adopt a policy under which employees invest in a stock during periods of good news for the issuer but not during periods of bad news. The implication is that someone else (which is to say, investors at large) must bear the loss when bad news is announced, because the pension participants will have bailed out. Corporate insiders cannot trade on their own behalf using material private information, good or bad. See generally United States v. O’Hagan, 521 U.S. 642, 117 S.Ct. 2199, 138 L.Ed.2d 724 (1997); Dirks v. SEC, 463 U.S. 646, 103 S.Ct. 3255, 77 L.Ed.2d 911 (1983). In Harzewski we raised the question whether they may act on such information in their role as fiduciaries for pension plans. 489 F.3d at 808. That question remains unanswered but must be resolved in plaintiffs’ favor if they are to prevail.
Affirmed