Congress bans insider trading in prediction markets for federal officials
S. 4188 — Public Integrity in Financial Prediction Markets Act of 2026 · Filed by Elissa Slotkin (D-MI) · 3 cosponsors · Introduced Mar 25, 2026 · Referred to committee
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What it does
This bill prohibits federal officials—including the President, Vice President, Members of Congress, and federal employees—from trading prediction market contracts (financial bets on future events) using inside information they gain from their jobs. Violators face fines up to $500 or double their profits, whichever is greater. Ethics offices must enforce the rule and collect reports on all prediction market trades over $250.
Why we flagged it
The bill's core function is to prevent federal officials from using insider information to trade prediction market contracts. It is a straightforward ethics/conflict-of-interest measure with no hidden deregulatory or subsidy mechanism.
What the text implies
- Prediction markets are nascent and largely unregulated in the U.S.; this bill assumes they will become a material trading venue for federal officials, suggesting legislative expectation of market growth.
- The $250 reporting threshold is low and may generate significant compliance burden on ethics offices; enforcement capacity is not addressed.
- The bill does not restrict prediction market trading by federal officials' family members or associates, leaving potential workarounds via proxies.
- Penalties are capped at $500 or double profits—for high-value trades, the $500 floor may be a trivial cost relative to insider-trading gains.
Section numbers refer to the bill text the analysis read — linked under Primary records below.
Who it affects
The bill closes an insider-trading loophole specific to prediction markets, preventing federal officials from profiting off confidential information they access through their positions. This strengthens public trust and prevents conflicts of interest that could distort official decision-making.
Named in the bill
President, Vice President, Members of Congress, House of Representatives, Senate, Executive agencies, Independent regulatory agencies, Commodity Futures Trading Commission, Supervising ethics offices, Prediction market platforms
Where it stands
3 cosponsors: 2 Republicans, 1 Democrats.
- Mar 25, 2026 — Introduced · Congress.gov: “Introduced in Senate”
- Mar 25, 2026 — Referred to Senate Committee on Homeland Security and Governmental Affairs · Congress.gov: “Read twice and referred to the Committee on Homeland Security and Governmental Affairs”
Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.
Money around this bill
3 lobbying clients named this bill on 3 disclosure filings across 1 quarter, Jun 2026 to Jun 2026. Those filings disclosed $160,000 in lobbying spend. A filing names 20 bills on average, so that figure is what each filing reported, not a share belonging to this bill.
More lobbying clients named this bill than 61% of bills with at least one filing.
Elissa Slotkin, the sponsor, reported $43,550 in PAC receipts in the 2026 cycle.
- Boyd Gaming Corporation — $60,000 on 1 filing
- Boyd Gaming Corporation — $60,000 on 1 filing
- Transparency International U.S. (a Project of the Fund for Constitutional Govt) — $40,000 on 1 filing
Lobbying Disclosure Act filings through Jul 19, 2026. A filing shows who paid to lobby on a bill it names, not what changed.
How this was measured
Analysis — Quorum's AI read the bill text published by Congress.gov (5,494 characters) on Apr 14, 2026. Section numbers in the findings refer to that text, linked below; transparency and hidden-provision scores are compared against the median of 16,222 analysed bills.
Status and sponsors — Congress.gov's bill record — actions, committee referrals and cosponsors — loaded nightly. The timeline shows status changes, not every procedural action.
Money — Senate Lobbying Disclosure Act filings whose specific-issue field names this bill for quarters ending Jun 2026 to Jun 2026. A filing's amount is reported whole beside the median number of bills a filing names; it is never divided across them. PAC receipts are FEC-reported contributions to the sponsor's candidate committee in the 2026 cycle.
As of — lobbying records through Jul 19, 2026 · page rendered 2026-10-20.
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