What Is the STOCK Act?
The STOCK Act — formally the Stop Trading on Congressional Knowledge Act — is a United States federal law that prohibits members of Congress and other government officials from using non-public information gleaned from their official positions for personal financial gain. It was signed into law by President Barack Obama on April 4, 2012, after years of public pressure driven by academic research showing that congressional portfolios consistently outperformed the broader market.
The law clarified something that should have been obvious: the insider trading rules that apply to corporate executives also apply to lawmakers. Before 2012, there was genuine legal ambiguity about whether congressional knowledge counted as "material non-public information" under existing securities law.
Key Requirements
- Disclose all trades over $1,000 — Every stock, bond, commodity, or futures trade exceeding $1,000 must be publicly reported. This includes purchases, sales, and exchanges.
- File within 45 days — Periodic Transaction Reports (PTRs) must be filed no later than 45 days after the date of the transaction.
- Applies to family members — Trades by a member's spouse and dependent children must also be disclosed on the same timeline.
- Public record — All filings are accessible to the public through the House and Senate disclosure websites.
- Online posting required — Filings must be posted online (not just available upon request as paper documents, as was the case before 2012).
What Was Weakened
The STOCK Act was signed with bipartisan enthusiasm — it passed the Senate 96-3 and the House 417-2. But within a year, Congress quietly walked back one of its most important provisions.
In April 2013, with almost no debate and no recorded vote, Congress repealed the online disclosure requirement for senior congressional staff and executive branch employees. The provision that would have made staff-level financial disclosures searchable online was removed, citing "national security" concerns about having personal financial data available in a database. Members of Congress remained subject to online disclosure, but the rollback reduced transparency for thousands of senior staffers who often have direct access to the same non-public information as their bosses.
Who Must Comply
The STOCK Act's disclosure requirements extend beyond members of Congress to cover a broad range of government officials. According to GovGreed's analysis of 189,595 STOCK Act filings, 343 of 538 current and recent members of Congress (63.8%) have filed at least one trade since the law took effect.
The spousal trading provision is notable because some of the most high-profile congressional trading activity occurs through spousal accounts. Paul Pelosi's trades in NVIDIA, Visa, and other companies have drawn more public attention than the trades of most members themselves. Under the STOCK Act, these trades are disclosed under the member's filing — but the "Owner" field indicates whether the trade was made by the member, spouse, or a dependent child.
Enforcement and Penalties
The STOCK Act's enforcement framework is, by any measure, the weakest penalty structure in federal securities law. The contrast between the consequences for a corporate insider and a congressional insider is stark.
Can be waived by ethics committee
Up to $5,000,000 in fines
The enforcement mechanism works like this:
- Late filing detected — The House Office of the Clerk or the Secretary of the Senate identifies a Periodic Transaction Report filed after the 45-day deadline.
- $200 fine assessed — The member receives a notification of the late filing fee. For the first offense, this is $200. This fee can be — and routinely is — waived by the relevant ethics committee chair.
- Ethics committee review — The House Committee on Ethics or the Senate Select Committee on Ethics can investigate patterns of late or suspicious trading. In practice, these investigations are rare.
- DOJ referral — For cases involving potential insider trading (not just late filings), the matter can be referred to the Department of Justice for criminal prosecution. This referral process exists on paper. It has never resulted in a criminal prosecution of a sitting member of Congress under the STOCK Act.
For context, when the SEC prosecutes a corporate executive for insider trading, the penalties include disgorgement of profits, civil fines up to three times the gains (or losses avoided), and criminal penalties of up to 20 years in prison and $5 million in fines per violation. The STOCK Act has no disgorgement provision, no multiplier on gains, and a fine that would not cover a parking ticket in most of the districts these members represent.
The Late Filing Epidemic
GovGreed's analysis of 189,595 congressional trades reveals a persistent pattern of non-compliance that has not improved meaningfully since the STOCK Act took effect in 2012. For the full ranked list, see the late filings tracker.
The median delay is 28 days — well within the legal window — which means the majority of filings are technically compliant. But the distribution has an extremely long tail. A small number of members file so egregiously late that they pull the overall average past the 45-day deadline to 49 days. These serial late filers create an information asymmetry: the public can't evaluate their trading patterns until months — sometimes years — after the trades were executed.
Worst Offenders
| Politician | Party | Notable Violation | Detail |
|---|---|---|---|
|
Rick Allen
|
R | 997-day gap | Longest single disclosure delay in the database. Filed a trade nearly 3 years after execution. |
|
Thomas Suozzi
|
D | 86.4% late rate | Filed 86.4% of all trades late, with an average disclosure delay of 396 days per trade. |
|
Michael McCaul
|
R | 6,670 late filings | Most late filings by volume. 20.7% of his 32,302 total trades filed after the deadline. |
|
Byron Donalds
|
R | 340-day avg delay | Average disclosure gap of 340 days across his reported trades. |
This is a bipartisan problem. The worst individual gap belongs to a Republican (Allen, 997 days). The highest late-filing percentage belongs to a Democrat (Suozzi, 86.4%). The highest volume of late filings belongs to a Republican (McCaul, 6,670). Compliance failure is not a partisan issue — it is a structural one.
What the STOCK Act Doesn't Cover
The STOCK Act addresses disclosure — the obligation to tell the public what you traded and when. It does not address the more fundamental question: should members of Congress be allowed to trade individual stocks at all while in office?
- No restriction on trading in sectors you regulate. A member of the Senate Banking Committee can freely trade bank stocks. A member of the House Energy Committee can trade oil and gas. The only obligation is to disclose the trade — not to refrain from making it.
- No restriction on trading during legislative markups. Members can execute trades on the same day their committee marks up a bill that will move the stocks they own. GovGreed's analysis of 256,112 bill-trade correlations identifies thousands of trades executed within days of related legislative action.
- No real-time disclosure. The 45-day window means members have more than six weeks of information advantage after each trade. During this period, the public cannot see the position the member has taken. By the time the filing appears, the market has often already moved.
- Spousal trading loophole. While spousal trades must be disclosed, members can claim they had no knowledge of their spouse's trading decisions. The "I didn't know my spouse was buying NVIDIA" defense has no verification mechanism.
- Blind trust exemption is rarely used. The law allows members to place assets in a qualified blind trust, which would remove the conflict of interest entirely. As of 2026, only a handful of members use blind trusts. The rest retain full knowledge of and control over their portfolios.
STOCK Act Reform Proposals
Since 2012, multiple bills have been introduced to go beyond the STOCK Act's disclosure-only framework and impose actual restrictions on congressional trading. 86% of the American public supports banning congressional stock trading, according to polling data. Despite this overwhelming support, no reform bill has passed.
The pattern is consistent: reform bills attract bipartisan co-sponsors, generate favorable press coverage, and then die in committee. Congressional leadership in both chambers has repeatedly declined to bring trading ban legislation to a floor vote, despite polling showing 86% public support. The members who would need to vote for the ban are the same members who benefit from the current system.
How GovGreed Tracks STOCK Act Compliance
GovGreed maintains the most comprehensive publicly accessible database of congressional trading activity, built from mandatory STOCK Act disclosures filed with the House Office of the Clerk and the Secretary of the Senate.
Every trade in the database includes a calculated disclosure gap — the number of days between the trade execution date and the filing date. This allows systematic analysis of filing compliance at the individual, party, and chamber level. GovGreed's 7-layer signal scoring engine cross-references trading activity with:
- Committee assignments — Do members trade stocks in sectors their committees regulate?
- Bill timing — Are trades correlated with upcoming legislative markups? (256,112 correlations tracked)
- Herd signals — Are multiple members buying the same stock within a short window?
- Campaign contributions — Do members trade stocks from industries that donate to their campaigns? (565 patterns)
- Lobbying activity — Are trades correlated with lobbying filings? (2,101 patterns)
- Technical context — Are members buying at statistically favorable technical levels?
- Sector momentum — Are members front-running sector-wide moves?
The result is a comprehensive intelligence layer on top of raw STOCK Act data — turning public disclosures into actionable pattern analysis. For a step-by-step walkthrough, see our guide on how to track congressional stock trades.