The End of Prediction Markets? Why the Senate is Banning Bets on Sports, Politics, and War

 

# The End of Prediction Markets? Why the Senate is Banning Bets on Sports, Politics, and War

## The $4.2 Billion Wake-Up Call

At 4:00 p.m. Eastern on March 25, 2026, the Senate floor erupted in a debate that would determine the fate of one of the fastest-growing financial sectors in modern history. On one side stood a bipartisan coalition of senators who had spent months warning that prediction markets had become a "backdoor for corruption" and a "national security threat." On the other side stood the Commodity Futures Trading Commission (CFTC) and a burgeoning industry that had just posted a record-breaking $4.2 billion in quarterly trading volume .

The legislation at the center of the storm was the **Integrity in Markets Act**—a sweeping bill filed just hours earlier that would ban federally regulated prediction markets from listing contracts on sports, political outcomes, and military operations . For an industry that had grown from a niche curiosity to a $5.3 billion weekly market in just six months, the stakes could not have been higher .

The trigger was impossible to ignore. In early March, as U.S. and Israeli forces prepared to strike Iran, at least six anonymous wallets on the offshore platform Polymarket made more than $1 million in profits in a matter of hours by betting that the strike would occur by that date . Days later, when Iranian Supreme Leader Ayatollah Ali Khamenei died, traders on the regulated platform Kalshi profited from contracts on whether he would be "out as Supreme Leader"—contracts that critics called "death markets" . And just weeks before that, an anonymous trader had wagered $30,000 on the capture of Venezuelan President Nicolás Maduro hours before a U.S. raid—netting $400,000 .

For lawmakers, the pattern was unmistakable. These weren't just bets. They were potential evidence of insider trading, market manipulation, and a fundamental breakdown in the wall between government knowledge and private profit.

"Activity in prediction markets regarding the war with Iran demonstrates how event contracts tied to U.S. military operations are morally repugnant and provide no social benefit," Senators Jack Reed (D-R.I.) and John Hickenlooper (D-Colo.) wrote in a blistering letter to the CFTC earlier this month . "These contracts are so dangerous to the national security of the United States and so offensive to U.S. values that they far outweigh any legitimate risk-management purpose."

This 5,000-word guide is the definitive analysis of the legislative assault on prediction markets. We'll break down the **Integrity in Markets Act**, the **$4.2 billion volume** that made the industry a target, the Pentagon's **"signal jamming"** concerns, the regulatory turf war between the **CFTC and state gaming authorities**, and the **120-hour window** that saw $800 million in bets on whether Iran talks would fail.

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## Part 1: The Integrity in Markets Act – What the Senate Actually Wants to Ban

### The Bill's Provisions

The Integrity in Markets Act, filed on March 25, 2026, is actually the culmination of a series of legislative efforts that have been building since January . The bill has three primary components:

| **Component** | **What It Bans** | **Target** |

| :--- | :--- | :--- |

| **Sports Betting Ban** | Any prediction contract resembling a sports bet or casino-style game | Kalshi's NFL and March Madness markets, which hit $1.34 billion on Super Bowl Sunday  |

| **Government Action Ban** | Contracts tied to terrorism, assassination, war, or removal of government officials | The "Iran strike" and "Khamenei ouster" markets  |

| **Insider Trading Prohibition** | Federal officials, appointees, and staff from trading on non-public information | The "Maduro Trade" that netted $400,000  |

The bill was introduced by a bipartisan coalition that includes California Senator Adam Schiff and Utah Senator John Curtis, with the sports betting ban, and Nevada Congressman Adrian Smith and Illinois Congresswoman Nikki Budzinski, with the government official ban .

Schiff's framing was characteristically blunt: "Sports prediction contracts are sports bets — just with a different name. These contracts have been offered in all fifty states in clear violation of state and federal law. Rather than enforce the law, the CFTC is greenlighting these markets and even promoting their growth" .

### The "Death Markets" Controversy

The most inflammatory element of the bill is the prohibition on contracts tied to assassination, war, or the removal of government officials. The catalyst was the Kalshi market on whether Ayatollah Ali Khamenei would be "out as Supreme Leader" by a certain date .

When Khamenei died during the U.S.-Israeli strikes on Iran, the contract resolved at $1. Critics noted that the platform had promoted the market as its "featured market" throughout the day of military strikes, and that traders profited from price appreciation after the strikes had started but before Khamenei's death was confirmed .

"The ability to trade event contracts tied to violent geopolitical events could create financial incentives for someone to actually commit violence for profit," Reed and Hickenlooper warned .

### The 120-Hour Window: $800 Million at Stake

Perhaps the most dramatic example of why lawmakers are concerned came during the 120-hour diplomatic window following Trump's March 23 announcement of a 5-day reprieve on Iran strikes. According to MarketWatch, a single Polymarket trader who had accurately predicted the start of the Iran war was now betting heavily on a cease-fire by the following week .

Over that 120-hour period, total volume on prediction markets tied to the Iran talks exceeded $800 million . The contracts tracked everything from whether Iran would agree to the 15-point peace plan to whether the Strait of Hormuz would reopen by March 28.

For traders, this was pure speculation. For national security officials, it was something else entirely.

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## Part 2: The $4.2 Billion Volume – Why the Industry Became a Target

### The Growth Explosion

To understand why Congress is moving now, you have to look at the numbers. The prediction market industry has experienced growth that Wall Street analysts are calling "unprecedented."

| **Period** | **Volume** | **Key Event** |

| :--- | :--- | :--- |

| August 2025 | ~$2 billion (monthly) | Baseline |

| Super Bowl Sunday 2026 | $1.34 billion (single day) | Kalshi's $871.5M, Polymarket's $311.9M  |

| Week of Feb 9, 2026 | $5.33 billion | 13x increase in six months  |

| **Q1 2026** | **$4.2 billion (per quarter)** | **Institutional entry**  |

The $4.2 billion quarterly figure represents a more than 1,000% increase from the same quarter in 2025 . And the growth was not driven by retail speculators alone. Institutional giants like DRW and Susquehanna International Group (SIG) have been building dedicated "Information Finance" desks, hiring quantitative traders to treat event contracts as a new asset class .

As of mid-January, Kalshi captured approximately 66.4% of the record-breaking volume on January 12, thanks to its integration into Robinhood's "Prediction Markets Hub" . This partnership has funneled massive liquidity from retail investors, which in turn attracted the institutional "sharks."

### The Super Bowl Surge

The Super Bowl was the moment prediction markets went mainstream. On February 8 alone, tracked platforms processed $1.34 billion in notional volume across 7.5 million transactions . Kalshi accounted for $871.5 million of that daily total, with Polymarket adding $311.9 million.

To put that single day in perspective: the entire prediction market industry did $2 billion for the full month of August 2025. Super Bowl Sunday did well over half of that in 24 hours .

### The Maduro Trade That Broke the Camel's Back

The specific event that triggered the legislative response was the "Maduro Trade" in early January 2026 .

A brand-new account on Polymarket placed a bet of over $30,000 that Venezuelan President Nicolás Maduro would be removed from office by the end of January . A few hours later, the Trump administration conducted its raid and capture of Maduro. The trade netted a staggering $400,000 payout.

The timing raised immediate suspicion. How could an anonymous user have known about a classified military operation hours before it happened? The trader had opened the account in December 2025 and initially bet only $96, gradually increasing the wager to $34,000 .

"The most corrupt corner of Washington, D.C. may well be the intersection of prediction markets and the federal government—where insider trading and self-dealing are no longer imagined risks but demonstrated dangers," said Rep. Ritchie Torres (D-N.Y.), who introduced the first insider trading bill in January .

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## Part 3: "Signal Jamming" – The Pentagon's National Security Concerns

### What the DoD Fears

The term **"signal jamming"** was coined by Department of Defense officials to describe a phenomenon that keeps national security leaders up at night: the possibility that insider trading in prediction markets could tip off adversaries about imminent U.S. military action .

Here's how it works. If a government insider with knowledge of an upcoming operation places a large bet on the outcome, the surge in buying activity and rapid price increase could signal that the event will occur. Adversaries monitoring these markets could then anticipate U.S. intervention.

"Traders with inside information that specific geopolitical events will occur or who can directly influence such events can easily buy event contracts," Reed and Hickenlooper warned. "A surge in buying activity and a rapid price increase can signal that the reference event will occur. Such a pattern could tip off our adversaries that U.S. intervention is imminent" .

### The Iran War Prediction

The concern is not theoretical. During the run-up to the February 28 strikes on Iran, at least six wallets on Polymarket made more than $1 million in profits in just hours by betting that the U.S. or Israel would strike Iran by that date . According to Bloomberg reporting, this activity was the "hallmark" of insider trading .

The accounts went dormant after the strike, then became active again before the next escalation. Israeli authorities have opened an investigation .

### The Distinction from Traditional Hedging

Critics of the ban argue that speculation in traditional financial instruments—oil, gold, currencies—also responds to geopolitical instability. But Reed and Hickenlooper note a crucial distinction: "Speculation in traditional financial instruments that may be linked to geopolitical instability, such as oil, gold, and currencies, do not send direct and specific signals that an attack in one specific country is imminent" .

A bet on an "Iran strike" contract is not a hedge. It is a binary bet on a specific military action. And when large bets appear moments before the action, the signal is unmistakable.

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## Part 4: The CFTC's Last Stand – Regulatory Turf War

### Selig's Aggressive Defense

At the center of the storm is Michael Selig, the Trump-appointed chairman of the Commodity Futures Trading Commission. Selig has been the most aggressive defender of prediction markets in the agency's history.

"We really wouldn't have a futures market or derivatives market if everything was considered gaming or betting or gambling," Selig said at the Digital Asset Summit on March 24. "If we start considering it something that's subject to state oversight, we're going to lose a lot of ability to effectively police our markets" .

Selig believes prediction markets should not be overtly restricted. When allowed to operate openly, he argues, they are a form of "decentralized trust." He has embraced the industry slogan: "The markets are truth machines" .

### The 40-State Challenge

Selig's CFTC is facing a coordinated assault from state attorneys general. A bipartisan group of attorneys general from nearly 40 states filed an amicus brief on March 10 arguing that Selig's CFTC has made a "sharp pivot" to expand its own powers . They argue that courts shouldn't defer to the agency's interpretation, especially following the Supreme Court's 2024 ruling in Loper Bright Enterprises v. Raimondo, which limited agency deference .

At stake is whether the CFTC has exclusive jurisdiction over prediction markets under the 2010 Dodd-Frank Act, or whether states can enforce their own anti-gambling laws against platforms that operate within their borders .

### The Roberts Rule

In February, the CFTC filed an amicus brief supporting Crypto.com's appeal against Nevada, arguing state gambling regulators shouldn't be able to "invade" the federal agency's exclusive jurisdiction. Selig posted a video on X that same day, warning other entities that might try to regulate the same issues: "We will see you in court" .

The CFTC also issued an advance rulemaking notice and guidance on prediction markets, including a request for exchanges to engage with the agency before opening markets that are vulnerable to manipulation .

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## Part 5: The "Checkered" Legal Landscape

### The New York Problem

Even if federal legislation stalls, prediction markets face a "checkerboard" of state-level prohibitions . In New York, the proposed ORACLE Act seeks to ban residents from trading on politics and "catastrophic events," proposing massive fines for non-compliant platforms .

New York is not alone. California, where most forms of gambling are prohibited under the state constitution, is also hostile. Utah prohibits all forms of gambling. In these states, prediction market platforms are operating in clear violation of state law—and the CFTC's assertion of federal jurisdiction is their only defense .

### The "Three-Year Gamble"

TD Cowen analyst Jaret Seiberg believes the industry is making a calculated bet: if they can get well established over the next three years, the outcome of the 2028 presidential election will not matter because prediction markets will be too advanced to dismantle .

"That strategy may not work," Seiberg wrote. "Many Democrats in Congress appear worried about the nationwide rollout of prediction markets while some Republicans see this as a fight over the right of states to regulate sports gambling" .

### The Torres Bill's Odds

Currently, the odds of the Public Integrity Act passing into law within the current session remain low. Proxy markets on PredictIt are trading at just 12 cents, implying a 12% chance of passage . However, the regulatory pressure is already reshaping how institutional players and retail traders approach the market.

As one trader put it: "The play is no longer just about who wins an election or a war; it is about who writes the rules of the market itself" .

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## Part 6: The Institutional Era – What Prediction Markets Have Become

### The Information Finance Thesis

The professionalization of prediction markets is a direct result of regulatory maturation under Selig. The CFTC's "self-certification" framework allows platforms to launch contracts on almost any event—from economic data to the Oscars—as long as they are treated as financial derivatives . This has provided the legal certainty necessary for Goldman Sachs and Morgan Stanley to begin exploring client-facing event-trading products .

For firms like DRW, which recently posted job listings for a "Prediction Markets Desk" with base salaries reaching $200,000, the goal is simple: capture "alpha" by identifying when the market's collective probability is mathematically inconsistent with real-world data .

### The Cross-Asset Hedge

Tyr Capital and other alternative asset managers are treating prediction markets as a hedge. For example, a hedge fund might buy "No Recession" contracts to offset a short position in credit instruments . This "cross-asset hedging" allows firms to protect their portfolios against specific "black swan" events that are traditionally difficult to price using standard stock or bond derivatives.

### The Robinhood Effect

Kalshi's integration into Robinhood has been transformative. The partnership has brought prediction market trading to millions of retail investors who had never before considered betting on the outcome of the Federal Reserve's next move or the timing of the next Iran strike .

It has also brought scrutiny. When retail investors can access markets that were previously the domain of sophisticated quants, the potential for abuse multiplies.

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## Part 7: The American Investor's Playbook

### What This Means for Prediction Market Participants

If you currently trade on Kalshi, Polymarket, or any other prediction market platform, the legislative assault has immediate implications.

| **If You Trade...** | **You Should Know** |

| :--- | :--- |

| **Sports** | The Schiff-Curtis bill would ban all sports prediction contracts. This is the largest volume category on Kalshi, which did $2.43 billion in sports volume the week of Feb. 9 . |

| **Politics** | The Torres bill and the Integrity in Markets Act both target political contracts. |

| **Military/Geopolitical** | The Reed-Hickenlooper letter makes clear that these are the highest-priority targets. The "Iran strike" and "Khamenei" markets have become the poster children for reform . |

### The State-Level Risk

Even if federal legislation stalls, state-level enforcement could still shut down access in large markets. If you live in New York, California, or Utah, your ability to trade may be restricted regardless of what the CFTC says .

### The Institutional Take

For professional traders, the path forward is clear: prediction markets are becoming a regulated financial instrument. The "Wild West" era of anonymous traders making million-dollar bets on classified operations is ending. The era of CFTC oversight, institutional market makers, and compliance departments is beginning.

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### FREQUENTLY ASKED QUESTIONS (FAQs)

**Q1: What is the Integrity in Markets Act?**

A: The Integrity in Markets Act is a bipartisan bill filed March 25, 2026, that would ban federally regulated prediction markets from listing contracts on sports, political outcomes, and government military actions .

**Q2: How much volume did prediction markets do in Q1 2026?**

A: Prediction markets recorded **$4.2 billion in trading volume** in Q1 2026, with weekly volumes reaching $5.33 billion in February .

**Q3: What is "signal jamming" in the context of prediction markets?**

A: "Signal jamming" is the Pentagon's term for the risk that insider trading in prediction markets could tip off adversaries about imminent U.S. military action. A surge in buying activity can signal that an event will occur .

**Q4: What regulatory category is Congress trying to permanently bar prediction markets from?**

A: Congress is seeking to bar prediction markets from the **Commodity Futures Trading Commission (CFTC)** framework, arguing that these contracts are "gaming" rather than legitimate derivatives .

**Q5: What was the "120-hour window" and how much was bet?**

A: Following Trump's March 23 announcement of a 5-day reprieve on Iran strikes, approximately **$800 million in bets** were placed on whether talks would succeed or fail .

**Q6: Who introduced the first prediction market bill in 2026?**

A: Rep. Ritchie Torres (D-N.Y.) introduced the **Public Integrity in Financial Prediction Markets Act of 2026** on January 9, following the suspicious Maduro trade .

**Q7: What was the "Maduro Trade"?**

A: In early January 2026, an anonymous Polymarket trader bet $30,000 that Venezuelan President Maduro would be removed from office. Hours later, U.S. forces captured Maduro. The trade netted $400,000 .

**Q8: What's the single biggest takeaway from the legislative assault on prediction markets?**

A: Prediction markets have grown from a niche curiosity to a $4.2 billion quarterly industry, but that growth has come at a cost. The suspicious trades surrounding the capture of Maduro, the Iran war, and the death of Khamenei have convinced a bipartisan coalition of lawmakers that these markets are a national security threat and a backdoor for corruption. Whether the Integrity in Markets Act passes or not, the era of anonymous traders betting on classified operations is over.

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## Conclusion: The End of the Wild West

On March 25, 2026, the prediction market industry faced its greatest test yet. The numbers tell the story of an industry that grew too fast, attracted too much attention, and made enemies in too many powerful places:

- **$4.2 billion** – Q1 2026 trading volume, a 1,000% increase year-over-year 

- **$1.34 billion** – Super Bowl Sunday volume alone 

- **$800 million** – Bets placed on the Iran peace talks in a 120-hour window 

- **$400,000** – The Maduro trade that launched a thousand investigations 

- **$1 million+** – Profits from six wallets that correctly predicted the Iran strike 

For the industry, the path forward is uncertain. The Integrity in Markets Act may not pass in its current form, but the political pressure is not going away. State attorneys general are circling. The Pentagon is alarmed. And the CFTC, once the industry's champion, may soon find itself stripped of its authority.

For the "Information-Efficacy" school, which views prediction markets as the ultimate truth engines, this is a tragedy. The markets have proven they can forecast events with remarkable accuracy—often outperforming polls and pundits. But the "Social-Harm" school has a powerful counterargument: accuracy is not worth corruption. And when anonymous traders can profit from classified military operations, something has gone terribly wrong.

The age of the unregulated prediction market is ending. The age of **accountability** has begun.