Logo Daily Crypto Briefs
Open menu

Goldman Bars Staff From Prediction Markets as Wall Street Tightens

6 min read
Breaking News
Greyscale Wall Street tower and compliance officer holding a blank clipboard on navy, amber and off-white editorial panels.

TL;DR

  • Reuters reported that Goldman Sachs prohibited employees from trading event contracts tied to financial markets and politics because of conflict-of-interest concerns.
  • Morgan Stanley, JPMorgan Chase and Bank of America also have prediction-market rules or updated employee restrictions, according to Reuters reporting and a Bank of America spokesperson.
  • Kalshi and Polymarket trading volume has reached $26.6 billion, according to AP-cited Dune data, increasing the compliance stakes for banks and platforms.
  • The CFTC says misuse of material nonpublic information is prohibited in prediction markets, including event contracts on KalshiEX.

NEW YORK, July 12, 2026

Goldman Sachs has prohibited employees from trading prediction-market contracts tied to financial markets and politics, Reuters reported, as Wall Street banks tighten internal controls around Kalshi and Polymarket amid growing concern over conflicts and nonpublic information.

The policy is a notable sign that prediction markets are being treated less like a niche betting product and more like a personal-trading compliance problem. Reuters reported that Morgan Stanley has rules covering prediction-market betting, JPMorgan Chase’s policy reaches trades based on nonpublic information, and Bank of America recently clarified prohibited event-contract activity for employees.

The market is no longer small. The combined trading volume for Kalshi and Polymarket reached $26.6 billion, up from $9.75 billion in October, according to Associated Press reporting that cited Dune data. About two-thirds of that activity was on Kalshi, and AP reported the platform was valued at $22 billion in its latest funding round.

Reuters reported that Goldman’s restriction covers event-based contracts that could create real or perceived conflicts with the bank, its clients or the financial industry. The report said the restriction does not apply to sports and entertainment contracts. A Bank of America spokesperson confirmed to Reuters that the bank had updated its guidance to more explicitly outline prohibited activities and provide examples.

The policy shift follows the CFTC’s February prediction-markets advisory, which said misuse of confidential information may violate the Commodity Exchange Act and CFTC Regulation 180.1. The agency’s point was narrow but important: event contracts do not create a loophole for a trader who misappropriates information in breach of a duty of trust and confidence.

Bitcoin

BTC
June 12 to July 11, 2026
$64,082
+0.8%
Jun 12 - Jul 11 | High $65,714 Low $59,713

Goldman Draws a Line Around Finance and Politics

The reported Goldman policy addresses the part of prediction markets that most resembles a conventional personal-trading issue. A contract on an earnings release, a policy decision, an economic data point or a corporate event can be valuable to someone with access to information that has not reached the public market.

Reuters said repeated violations of Goldman’s policy could result in discipline, including termination, and that employees could be required to forfeit gains from prohibited trades. Goldman did not publicly detail the memo, so the available reporting does not establish how the bank will classify every market or how it will monitor accounts.

Morgan Stanley’s employee code includes prediction-market rules, though Reuters said the details were not disclosed. JPMorgan’s reported approach reaches trades based on nonpublic information, while Bank of America restricts certain company-specific, macroeconomic and financial-services contracts.

The banks are not regulating the exchanges. They are applying the familiar personal-trading logic that staff who advise clients, trade markets or handle sensitive information should not bet on outcomes they can influence or know about before the public does.

Kalshi and Polymarket Face an Insider-Information Test

The bank policies arrive while platforms are building their own controls. Kalshi said in June it would assign risk scores to markets, collect employment information for certain high-risk markets and add whistleblower tools. The company said the measures followed recommendations from its independent Surveillance Audit Committee.

Kalshi’s stated design is to screen people it identifies as presumptive insiders before they trade certain contracts. That does not make every information advantage improper. The line the CFTC describes is misappropriated information tied to a duty of trust or confidence, rather than legitimate independent research or expertise.

The CFTC’s advisory cited two KalshiEX matters where the exchange’s internal program acted on alleged improper trades, including one involving a candidate trading on the candidate’s own race. Its authority extends to fraud, manipulation and misuse of confidential information on a designated contract market.

Daily Crypto Briefs recently covered Polymarket’s U.S. margin-trading filing, which showed the platform seeking a larger role in regulated derivatives. A bank’s internal policy does not decide that application, but it signals the client and counterparty questions the platforms will face as they move closer to traditional finance.

AP reported that Polymarket’s international platform uses blockchain and crypto, while its U.S. platform uses a more centralized, CFTC-regulated structure. Different rails do not remove the integrity challenge when a small group may know a contract’s outcome first.

Wall Street Compliance Arrives Before Clearer Rules

The CFTC is still working through the broader rulebook. Its March advance notice of proposed rulemaking sought comment on the core principles and regulations that apply to prediction markets, including surveillance and manipulation risks.

That leaves a transition period in which platforms are growing faster than the framework is being clarified. Internal conduct rules contain risk before a common industry standard emerges.

Wall Street restrictions can look like a warning, but they also acknowledge that event contracts have become relevant enough to enter formal compliance codes. The platforms’ next task is to show that their surveillance, employer-screening and enforcement processes can keep pace.

The same pressure is visible in the CFTC’s evolving prediction-market oversight. More access can bring liquidity, but also a higher burden to prove a market is not being used by people with information ordinary traders cannot obtain.

Alternative.me’s Crypto Fear and Greed Index registered 26, or Fear, on July 12.

Fear & Greed Index

July 12, 2026
26 Fear

What is still unclear is whether other major banks will follow Goldman’s reported posture, how far the existing restrictions reach into private accounts and whether platforms will obtain enough employment and affiliation data to make their screens effective. The next practical test will be a high-profile corporate, policy or macroeconomic contract, when the incentive to trade first is greatest and the surveillance record is most visible.

Stay up to date

Get the latest crypto insights delivered to your inbox

Fact-checked by: Daily Crypto Briefs Fact-Check Desk

Frequently Asked Questions

Did Goldman Sachs ban employees from all prediction-market trading?

Reuters reported that Goldman prohibited staff from event contracts linked to financial markets and political events. The reported restriction did not apply to sports and entertainment prediction-market betting.

Which banks have prediction-market employee rules?

Reuters reported rules or restrictions at Goldman Sachs, Morgan Stanley, JPMorgan Chase and Bank of America. The scope differs by firm, and Morgan Stanley's specific policy details were not disclosed.

Why are banks restricting Kalshi and Polymarket trading?

Event contracts can be tied to corporate, political and macroeconomic outcomes. Banks are seeking to reduce conflicts of interest and prevent employees from acting on material nonpublic information.

Is insider trading prohibited on prediction markets?

Yes. The CFTC says misappropriating confidential information in breach of a duty of trust and confidence can violate the Commodity Exchange Act and CFTC Regulation 180.1 when connected to event-contract trading.

What safeguards does Kalshi use against insider trading?

Kalshi says it uses market-risk scoring, employment verification for certain high-risk markets and enhanced whistleblower reporting to identify and screen potential insiders.