6 Motion-Practice Mistakes That Increase Cost and Delay in Securities Cases

Motion practice mistakes in securities cases can quietly add months of delay and drive up legal costs, especially when the rules differ between securities litigation and FINRA arbitration. This guide breaks down the most common missteps and explains how smarter motion strategy can help control timing, discovery, and leverage in your case. ReferU.AI can help you find an attorney with demonstrable experience in motion practice for securities disputes, so you can move forward with a plan that fits your forum and facts.

6 Motion-Practice Mistakes That Increase Cost and Delay in Securities Cases
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6 Motion-Practice Mistakes That Increase Cost and Delay in Securities Cases

Motion practice can shape the pace, pressure, and cost of a securities case long before anyone reaches trial, summary judgment, or a final hearing. In federal securities litigation, early motions often collide with the heightened pleading rules of the Private Securities Litigation Reform Act, abbreviated as the PSLRA, and with discovery limits that can freeze fact development while a dismissal motion is pending under 15 U.S.C. § 77z-1 and related provisions. In FINRA arbitration, motion practice follows a different structure, and early dismissal motions face meaningful limits under FINRA Rule 12504 and Rule 13504 guidance. Those procedural differences often create expensive mistakes when parties use a one-size-fits-all strategy.
This is one reason securities disputes can become expensive fast. According to Cornerstone Research and the Stanford Securities Class Action Clearinghouse, there were 225 securities class action filings in 2024, and in 2025 the median time from filing to settlement hearing remained about three and a half years in settled cases. Cornerstone’s 2024 filings report and its 2025 settlements analysis both suggest that procedure and timing remain central cost drivers in these matters.
Below are six common motion-practice mistakes that often increase cost and delay in securities cases, along with a practical look at why they matter.
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1. Treating Every Securities Case Like Ordinary Commercial Litigation

A common mistake is assuming a securities case follows the same early-motion playbook as a contract or business tort case. In reality, securities claims often come with special pleading rules, automatic discovery stays, and forum-specific motion limits that can make ordinary litigation instincts counterproductive.
In federal court, a Rule 12(b)(6) motion challenges whether the complaint states a legally sufficient claim under Federal Rule of Civil Procedure 12. But securities fraud claims usually involve more than ordinary notice pleading. The PSLRA imposes particularized requirements for alleged misstatements, omissions, and scienter allegations, and it includes a discovery stay during the pendency of certain dismissal motions under the federal securities statutes at Cornell’s U.S. Code collection. That changes leverage, timing, and case budgeting from the start.
FINRA arbitration works differently. FINRA states that arbitrators generally cannot act on a motion to dismiss before the conclusion of the non-moving party’s case in chief, except in narrow circumstances such as a signed release, lack of association with the account/security/conduct, or arbitration ineligibility under the six-year eligibility rule. FINRA’s motion-to-dismiss FAQ and Regulatory Notice 17-02 explain those limits in plain terms.
When lawyers or parties import the wrong model into the wrong forum, the result is often duplicated briefing, unrealistic scheduling assumptions, and strategic detours that make the matter longer and more expensive than expected. For a broader overview of how early dismissal fights and discovery interact, it helps to look at how discovery disputes and motion practice fit together at the opening stage of a case.

2. Filing A Weak Early Motion To Dismiss Just To “Show Strength”

Another costly mistake is filing an early dismissal motion that is long on rhetoric and short on fit. In securities cases, weak motions can consume months, trigger extended briefing cycles, and educate the other side about defenses without materially improving settlement posture.
This issue appears in both court and arbitration, though the mechanics differ. In FINRA arbitration, the forum has expressly tried to discourage premature or weak dismissal motions. FINRA explains that certain early motions require service deadlines, are limited to narrow grounds, and can expose the moving party to forum fees, costs, attorney’s fees, or sanctions when the filing is frivolous or made in bad faith under its motion-to-dismiss FAQ. FINRA’s more recent Regulatory Notice 24-03 also notes clarifying changes to motion practice administration, including how motions and replies are transmitted to panels.
In federal securities litigation, a weak motion can also backfire. Securities cases already tend to involve extensive pleading-stage fights. Davis Wright Tremaine, summarizing Stanford/Cornerstone data, reported that motions to dismiss were filed in 96% of federal securities class actions from 2013 through 2022, while many cases resolved before class certification. That pattern highlights how central dismissal briefing has become to overall case economics in this area, even before merits discovery fully unfolds, as discussed in the firm’s data-focused review of securities class action trends.
An early motion can absolutely make sense in the right case. But when the filing is used as a reflex, rather than as a tightly matched response to the claims and forum rules, it often adds cost without delivering much procedural advantage.

3. Ignoring The Discovery Consequences Of Motion Practice

One of the biggest budget mistakes in securities litigation is focusing on the motion itself while ignoring what the motion does to discovery timing, document preservation, and internal case preparation.
In federal private securities litigation, the PSLRA’s discovery stay is often treated as a simple pause button. It is not that simple. While discovery may be stayed during the pendency of the motion, the statute also provides that parties with actual notice of the allegations are to treat relevant materials as though they are subject to a continuing production request, which effectively raises the stakes of preservation from the outset under 15 U.S.C. § 77z-1. A party that pauses active case development because discovery is “stayed” may later face expensive collection problems, preservation disputes, or rushed productions when the stay lifts.
In arbitration, discovery is not governed by the PSLRA, but motion practice can still distort the discovery calendar. Parties sometimes overinvest in briefing disputes that do little to narrow issues while underinvesting in targeted collections, custodian identification, and document organization. That mismatch often reappears later as adjournment requests, disputes over incomplete productions, or emergency motions close to hearing dates.
This is one reason many securities lawyers treat motion strategy and discovery planning as part of the same early-case architecture rather than separate tracks. If the document plan is weak, even a well-argued motion may only postpone cost rather than reduce it.

4. Overlooking The Pleading Standards Unique To Securities Fraud Claims

Another recurring mistake is filing or opposing a motion without fully addressing the issues that make securities cases different: scienter, loss causation, particularized falsity allegations, and, in many cases, the line between nonactionable optimism and actionable misstatement.
Federal Rule 12 matters in every civil case, but securities cases often live or die on whether the pleading meets statutory specificity requirements. The PSLRA requires particularity for alleged false statements and the facts supporting the required state of mind, and those standards frequently drive dismissal outcomes under the federal securities statutes collected by Cornell’s Legal Information Institute. Separately, defendants often raise arguments involving the PSLRA’s treatment of forward-looking statements and the broader concept of statutory safe harbors, an issue the SEC has discussed in its materials on safe harbor for forward-looking statements and in more recent commentary noting that the PSLRA safe harbor affects private actions, not the SEC’s own enforcement authority, as explained in this SEC statement on SPAC-related rulemaking.
What increases cost is not just losing these arguments. It is briefing them poorly. Generic arguments about puffery, scienter, or forward-looking language often invite equally broad opposition and longer opinions. By contrast, motion papers that closely tie each challenged statement to the statutory framework, contemporaneous disclosures, cautionary language, and the actual theory of loss tend to create a shorter road through the issue.
In practical terms, securities motion practice is less about sounding forceful and more about mapping each claim element to the right procedural lens.

5. Using Motion Practice To Fight Everything At Once

Securities cases often involve sprawling allegations, multiple defendants, overlapping statutes, and parallel regulatory concerns. A frequent mistake is trying to resolve every issue through one oversized motion or opposition.
That approach may look efficient on paper, but it often produces the opposite result. Courts may require supplemental briefing, deny parts without prejudice, or sidestep poorly framed arguments. Arbitration panels may view broad motion practice as disproportionate to the real disputes that actually matter at hearing. Either way, the parties spend more, wait longer, and often end up litigating the same issues again in a different procedural posture.
There is also a credibility cost. A motion that raises ten arguments with uneven support may make the strongest points less persuasive. In FINRA arbitration, where early dismissal motions are already constrained, overreaching can be especially unhelpful because the panel is not required to consider or grant a Rule 12504(b) motion, even when one is permitted procedurally, according to FINRA’s FAQ on motions to dismiss.
A narrower motion plan often aligns better with cost control. Some parties focus early briefing on threshold issues that could meaningfully change exposure, party structure, or claim scope. Others reserve weaker or fact-intensive arguments for later stages, when the record is more developed. That kind of sequencing does not eliminate conflict, but it can reduce avoidable duplication.

6. Waiting Too Long To Bring In Counsel With Relevant Securities Motion Experience

Perhaps the most expensive mistake is strategic delay in attorney selection. Securities motion practice sits at the intersection of civil procedure, securities doctrine, forum rules, and record development. When the legal team lacks documented experience with highly similar matters, the case may drift into expensive procedural fights that could have been framed more efficiently from the start.
This is especially important because securities disputes often turn on case-specific details: the type of security, whether the case is in federal court or FINRA arbitration, whether the claims arise under the Securities Act of 1933 or Exchange Act theories, whether there are parallel investigations, and whether forward-looking statement defenses or statute-based pleading issues are central. A general commercial litigator may be excellent in many contexts and still face a steeper ramp in a securities-specific dismissal fight.
The available data underscores how much these early stages matter. NERA reported that in the first half of 2024, there were 100 resolved federal securities class actions, including 52 dismissals and 48 settlements, in its 2024 H1 update on securities class action litigation. Cornerstone’s 2025 settlements report also found that 54% of settlements in 2025 occurred before class certification motion filing, reinforcing that many cases change direction well before the later merits stages in its 2025 settlement analysis.
That is part of why attorney fit matters so much in securities disputes. Some lawyers have demonstrable experience handling pleading-stage fights under the PSLRA. Others have relevant experience in FINRA motion practice, discovery abuse motions, or customer-versus-industry arbitration procedure. The useful question is often not “Who handles litigation?” but “Who has documented experience with this specific kind of securities motion problem?”

Why These Mistakes So Often Lead To Delay

These six mistakes share a common theme: they treat motion practice as a standalone event instead of a case-management tool.
In securities cases, motions affect:
  • whether discovery moves or stalls
  • whether evidence is preserved correctly
  • whether issues are narrowed or multiplied
  • whether briefing teaches the opponent more than it gains
  • whether hearing and mediation schedules become realistic or distorted
  • whether the case starts moving toward resolution or drifts into procedural gridlock
That is true in federal court and in arbitration, even though the rules differ. In federal securities litigation, the statutory framework can make early motion practice outcome-determinative. In FINRA arbitration, the forum’s restrictions on early dismissal motions can make overaggressive briefing a costly distraction. In both settings, motion strategy tends to work best when it is tied to a broader plan for facts, timing, and forum-specific leverage.

A Final Tip On Managing Motion Risk Early

One practical way parties reduce avoidable cost is by evaluating motion strategy at the same time they evaluate counsel fit. That often means identifying lawyers with verified experience, documented experience, and demonstrable experience in highly similar securities matters, rather than relying on broad litigation labels alone. It may also help to examine whether the lawyer’s background matches the actual motion environment at issue: PSLRA dismissal practice, Securities Act pleading challenges, FINRA motion limits, discovery disputes, or arbitration-specific sanctions exposure.
Motion practice can narrow a case. It can also quietly expand cost and delay when the strategy is generic, premature, or mismatched to the forum. The earlier those risks are identified, the easier it often becomes to frame a more efficient path forward.

The Bottom Line

Securities cases are unusually sensitive to early procedural decisions. A weak dismissal motion, a forum mismatch, a poor discovery plan, or an attorney team without relevant motion experience can add months of avoidable expense before the merits are ever fully tested.
For people and businesses facing that kind of dispute, the key issue is often fit: finding an attorney whose background is based on evidence, grounded in court records, and connected to highly similar matters. Visit ReferU.AI to get matched with an attorney who has demonstrable experience in cases like yours — for free.

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