The second installment in a six-part series, Outten & Golden’s Whistleblower & Whistleblower Retaliation Practice examines the securities violations central to the SEC’s current enforcement agenda.

Key Facts:

• Market manipulation undermines trust in the financial markets. By creating a false picture of supply, demand, or trading activity, fraudsters can profit while investors make decisions based on misleading information.
• Advanced surveillance tools are transforming how regulators detect misconduct. The SEC and FINRA use the Consolidated Audit Trail (CAT) to analyze trading activity in real time across markets and identify potential market manipulation and other securities violations.
• Whistleblowers remain critical to uncovering market manipulation. Insider reports can help regulators investigate conduct that may otherwise be difficult to detect, supporting market integrity and investor confidence.

In April 2026, David Woodcock took the reins as the Director of Enforcement for the Securities and Exchange Commission. In his first public remarks, Director Woodcock delivered a keynote address at the MFA Legal & Compliance 2026 Conference outlining a traditional enforcement agenda focused on high-impact cases in the following areas: Offering Fraud, Accounting and Disclosure Fraud, Market Manipulation, Insider Trading, Private Funds, and Cross Border Fraud. In this article, we focus on market manipulation, a longtime focus of the civil and criminal federal enforcement authorities.

Market manipulation occurs when an individual or entity intentionally engages in deceptive conduct to interfere with the normal operation of the market and create a false appearance of supply, demand, or activity. While innocent investors trade based on these misleading market signals, the fraudster capitalizes on the market movement by trading on the artificially inflated or depressed prices.

• Pump-and-dump schemes: Bad actors accumulate shares, promote a company or security through false or misleading claims, and sell after the price rises. These schemes have become increasingly common in microcap stocks and digital assets, where limited liquidity makes prices easier to influence.
• Spoofing and layering: Traders place large orders they do not intend to execute in order to create a false impression of market demand or supply. Once prices move in response to the fake orders, the trader cancels them and executes genuine trades at a more favorable price.
• Wash trading: A trader buys and sells a security to itself or through coordinated accounts to create artificial trading volume and the appearance of market interest.
• Manipulative short selling: Investors may engage in deceptive practices designed to drive down a security’s price and profit from the decline.
• Market manipulation through derivatives: Complex financial instruments, including swaps and options, can be used to obtain significant economic exposure while obscuring the true size or purpose of a position.

Trends in SEC Market Manipulation Enforcement

Over the last decade, the SEC’s approach to market manipulation has evolved as technology has transformed the way securities trade.

The days when regulators relied on trading records and manual review to identify manipulation are largely behind us. Today, the SEC increasingly relies on sophisticated tech tools capable of detecting patterns across millions of transactions. These tools allow regulators to identify unusual trading activity that may have been difficult to detect through traditional investigative methods. By way of example, between 2020-2025, the SEC rolled out the   that analyzes trades in real time across multiple exchanges. This helps the authorities spot illegal conduct such as front-running, spoofing, and insider trading. In addition, CAT assigns unique identifiers to account holders, which enables regulators to see if the activity is spread across multiple accounts or an individual. While the database is under regular review and alteration – in April 2026, the SEC sought public comment on CAT – it is actively used by the SEC and FINRA.

The nature of market manipulation has changed dramatically with the evolution of technology. Conduct that once centered on traditional trading now increasingly involves digital assets, online communities (social media and dedicated chat groups), and highly sophisticated strategies.

The SEC has also increasingly focused on individual accountability. Rather than pursuing only companies or trading firms, the agency has sought penalties, industry bars, and personal liability against executives, traders, and investment professionals alleged to have orchestrated manipulative conduct.

Finally, regulators have focused on increasingly complex financial structures. The SEC’s charges against Archegos Capital Management and its founder Bill Hwang illustrates this shift. The SEC alleged that Archegos used total return swaps and misleading information provided to counterparties to accumulate enormous concentrated positions that artificially increased the prices of certain stocks. The collapse of Archegos resulted in billions of dollars in losses for financial institutions.

Examples of Recent Market Manipulation Enforcement Actions

Archegos Capital Management

As detailed above, the SEC’s case against Archegos is among the most significant market manipulation matters of the last decade. According to the SEC, Archegos used billions of dollars in total return swaps to build concentrated positions in certain companies while misleading counterparties about its exposure. The SEC alleged that these transactions were intended, at least in part, to drive up stock prices and conceal the firm’s true market influence.

In terms of penalties, in March 2026, the SEC said it has made “substantial progress” toward settlement with Archegos’ founder Bill Hwang ‌ and other defendants. In the meantime, Hwang and the CFO were both convicted, with Hwang sentenced to 18 years in prison.

Meme Stock and Options Market Schemes

A meme stock is any publicly traded stock with a price performance that’s strongly influenced by activity on social media. Both prices and trading volumes of meme stocks may be exceptionally volatile, as the hype on platforms such such as Reddit’s WallStreetBets forum can cause spikes in demand that are not based on changes in the company’s operations or financial performance. While the agency closely monitors viral trading frenzies, it actively investigates and prosecutes individuals who use coordinated pump-and-dump schemes or deceptive practices like wash trading for illicit financial gain. These enforcement actions net small monetary sanctions.

Cryptocurrency Pump-and-Dump Schemes

The SEC has increasingly targeted digital asset manipulation, including crypto schemes involving fraudulent trading activity, artificial volume, and coordinated efforts to inflate token prices. These cases reflect the agency’s broader effort to apply longstanding market integrity principles to rapidly evolving financial markets.

Spoofing and Algorithmic Trading Cases

Spoofing remains a continuing enforcement priority because electronic markets allow traders to place and cancel large numbers of orders at lightning speed. The SEC has brought cases against traders accused of using deceptive orders to manipulate prices. In fiscal year 2025, the SEC reported actions involving alleged spoofing activity that generated hundreds of thousands of dollars in improper gains.

Looking Ahead

For the SEC, the challenge will be distinguishing earnest innovation from illegal manipulation. As trading becomes faster and more complex, the Commission’s ability to identify manipulation — and SEC whistleblowers’ willingness to report it — will remain critical to maintaining investor confidence. Too, given the recent and substantial reduction in enforcement staff, leveraging technology will be critical to maximize efficiency. Ultimately, the SEC’s market manipulation enforcement efforts are aimed at preserving the integrity of the markets and ensuring that trading reflects legitimate investor activity rather than deception or artificial influence.