Polymarket has spent years fighting to become a legitimate part of America's financial landscape.

Now it faces a different challenge.

The issue is no longer simply whether prediction markets should be regulated.

It is whether traders on those markets can exploit privileged information before the public knows what is happening.

Documents obtained through a Freedom of Information Act request show that the U.S. Commodity Futures Trading Commission quietly opened at least three previously undisclosed investigations into trading on Polymarket, according to WIRED.

The investigations involve markets tied to Joe Biden's presidential pardons, the Iran war and Google's 2025 Year in Search rankings.

That discovery puts one of the world's most closely watched prediction platforms under a new kind of spotlight.

Polymarket has spent years arguing that prediction markets can provide valuable information by allowing people to put real money behind their expectations.

But the same mechanism that makes prediction markets fascinating also creates a serious vulnerability.

What happens when the person placing the bet knows the outcome before everyone else?

According to records obtained by WIRED, the CFTC's enforcement division launched at least three private investigations into potential insider trading involving Polymarket markets.

The first was approved in early May by CFTC Chairman Michael Selig and concerned markets related to pardons issued by former President Joe Biden.

The other investigations concerned Iran-related event contracts and a Google Year in Search market.

None of the three investigations had previously been publicly disclosed, according to the records.

That matters because prediction markets operate on a basic promise:

The price of an event contract should represent the collective judgment of participants with different information.

If one participant possesses privileged information unavailable to everyone else, that price can become distorted.

The market may still produce the correct outcome.

But the fairness of the process becomes questionable.

The first investigation followed reporting about a trader who made more than $300,000 on Polymarket contracts involving presidential pardons.

The trader appeared to correctly anticipate a series of preemptive pardons before they were publicly announced.

That naturally raised the question:

How did the trader know?

A successful prediction is not automatically evidence of wrongdoing.

People can get unlikely events correct.

But when a trader consistently profits from information-sensitive markets before public announcements, regulators have an obvious reason to investigate whether the person had access to nonpublic information.

That is what the CFTC's probe is designed to determine.

The second investigation is tied to prediction markets related to the Iran conflict.

According to WIRED's reporting, a network of accounts generated roughly $2.4 million in profits on Iran-related contracts.

That kind of market is especially sensitive.

Military developments can move markets rapidly.

Information about attacks, ceasefires, negotiations or strategic decisions can be worth enormous amounts of money before the public learns about it.

If someone has access to classified or otherwise confidential information, an event contract can potentially become a direct way to monetize that knowledge.

That creates a completely different risk from ordinary market manipulation.

This distinction is at the heart of the regulatory debate.

Platforms such as Polymarket allow users to buy and sell contracts tied to real-world events.

The price of a contract is often interpreted as a probability.

A contract trading at 70 cents can roughly represent a market belief that an event has a 70% chance of occurring, although prices are influenced by liquidity, fees and market structure.

Supporters argue that this creates a powerful information mechanism.

Instead of asking hundreds of people what they believe, you allow participants to put money behind those beliefs.

The result can be a continuously updated probability.

But that model only works well when the market has reasonable integrity.

Insider trading can undermine it.

If a well-informed trader knows the answer in advance, the price may reflect private information rather than collective wisdom.

The investigations arrive at a complicated time for the company.

Polymarket is actively trying to establish itself as a legitimate U.S. financial-market operator.

The company has returned to the U.S. market through a CFTC-regulated exchange after acquiring QCEX and has been building out compliance and investigative capabilities.

It has also expanded its internal security infrastructure.

In August, Polymarket highlighted tools involving blockchain analytics, machine learning and trade surveillance to identify suspicious activity as the U.S. midterm elections approached. Reuters reported that the company had referred more than 100 cases involving potential misconduct to authorities.

That means the company is not ignoring the problem.

But the discovery of previously undisclosed federal investigations shows just how difficult the problem is.

Polymarket's American relaunch is a major strategic development.

The platform had previously been barred from allowing U.S. customers following a 2022 CFTC enforcement action involving unregistered derivatives.

Now it has re-entered the U.S. market through a regulated structure.

That dramatically raises the stakes.

The company is competing directly for mainstream financial-market legitimacy.

It has hired experienced executives.

It has launched a U.S. platform.

It is expanding trading products.

And it is attempting to prove that prediction markets deserve a permanent place within regulated finance.

Regulatory scrutiny over insider trading therefore comes at precisely the wrong moment.

The platform is no longer a niche crypto experiment.

Polymarket told CNBC in June that its annualized revenue had passed $1 billion, only weeks after opening wider access to its U.S. exchange. Daily U.S. trading volume had also risen sharply.

Reuters recently reported that Polymarket and rival Kalshi together generated $48.4 billion in trading volume during August, with Kalshi leading at roughly $40 billion.

That growth explains why regulators are paying attention.

The larger prediction markets become, the greater the consequences when something goes wrong.

A suspicious $100,000 trade can be interesting.

A suspicious trade in a market processing billions of dollars becomes a systemic credibility problem.

Prediction markets depend on trust in information.

Participants need to believe that prices represent genuine collective expectations rather than hidden information advantages.

That is especially important when markets involve politics, war and public policy.

Consider an election market.

If a campaign insider buys contracts minutes before a major announcement, the price could move sharply.

Other traders might interpret that move as a genuine shift in public expectations.

They may then trade based on the signal.

One insider can therefore affect not just one trade but the behavior of the wider market.

That is why prediction-market integrity has become a serious regulatory issue.

The third CFTC probe concerns Google's 2025 Year in Search rankings.

At first glance, that sounds much less serious than a presidential pardon or military conflict.

But the principle is the same.

If an individual working inside Google knew which search terms would appear in the company's annual rankings and traded contracts before the public announcement, that information could provide a significant advantage.

This is exactly the type of scenario that regulators want to understand.

Where does ordinary research end?

Where does privileged information begin?

And how should prediction markets police that boundary?

Another important issue is whether prediction-market insider trading should be treated exactly like insider trading in traditional securities markets.

Polymarket's contracts are not shares of companies.

They are event-based financial instruments.

Some traders accused in prediction-market cases have argued that their activity should be considered betting rather than trading governed by commodities laws.

That distinction could become increasingly important as prediction markets expand.

The CFTC, meanwhile, clearly believes it has an enforcement role over the products operating under its jurisdiction.

That legal tension is likely to grow as prediction markets become more sophisticated.

Polymarket's situation illustrates a broader dilemma.

Stronger regulation could improve confidence in prediction markets.

Participants may be more willing to commit money if they know insider trading and manipulation are being aggressively investigated.

Institutional investors may become more comfortable participating.

But heavier restrictions could also reduce the types of markets that platforms can offer.

The CFTC has already proposed restrictions on certain categories of event contracts, including some markets connected to crime, terrorism and player injuries. That proposal has drawn criticism from lawmakers and consumer advocates who argue the agency is moving too far into gambling regulation.

The industry is therefore moving toward a regulatory crossroads.

For years, Polymarket's biggest argument was that people wanted prediction markets.

The billion-dollar annualized revenue figure demonstrates that demand is real.

Now the company faces a more difficult test.

Can it prove that those markets can remain trustworthy at enormous scale?

The newly disclosed CFTC investigations do not establish that Polymarket itself committed wrongdoing.

They are investigations into trading activity.

That distinction is important.

The existence of a federal investigation does not establish guilt.

But it does show that regulators see enough potential risk to devote enforcement resources to the activity.

Polymarket wants to become a permanent part of America's financial infrastructure.

To do that, it needs more than liquidity.

It needs credibility.

That means demonstrating that suspicious trading is detected, insider information is not tolerated, market manipulation is addressed and regulators can obtain cooperation when necessary.

The CFTC investigations are therefore more than a scandal headline.

They are a test of whether prediction markets can evolve from a popular trading phenomenon into a mature financial product.

The irony is that prediction markets were created to reveal information.

Now the industry must prove that information itself does not become the weapon that breaks the market.

And as Polymarket becomes bigger, more regulated and more politically important, that question is only going to become harder to avoid.