Every time someone asks me whether they can trade a prediction market on information they picked up at work, I have to slow them down before I answer, because the question they are actually asking is a securities question, and prediction markets do not run on securities law. That mismatch is the whole thing. Most of what people believe about insider trading comes from stock-market intuition, and almost none of it maps cleanly onto an event contract that pays out one dollar if a named thing happens and zero if it does not.
So the honest starting point is that on a regulated event-contract venue, there is no broad statute that says trading on material nonpublic information is illegal the way there is for equities. The classic securities theory hangs on a few pieces that mostly are not present here. There is no company issuing the contract whose shareholders you owe a duty to. There is no security in the technical sense. And the core idea behind insider-trading enforcement, that you breached a duty of trust or misappropriated information from someone you owed something to, needs a relationship that a yes-or-no contract about an election or a weather outcome usually does not create.
Why informed trading is partly the design
Prediction markets exist to aggregate information into a price. That is the pitch and the product. If you punished everyone who knew something the crowd did not, you would be punishing the exact behavior that makes the price worth reading. A market where only the uninformed are allowed to trade is a market that tells you nothing.
This is genuinely different from the equities frame, where the policy goal is a level playing field so ordinary investors are not systematically picked off by insiders. On an event contract, the informed trader is doing the market a favor by pulling the price toward the truth faster. So the regulators did not try to ban informed trading in general. They drew a much narrower line around a specific failure mode, which is people trading on the thing they themselves control or are supposed to be reporting on neutrally.
Where the actual lines sit
The real constraints live in two places, and it is worth keeping them separate in your head because they behave differently.
The first is federal commodities law under the CFTC, which reaches things like fraud, manipulation, and using a market to disguise or launder some other bad act. The obvious prohibited move is manipulating the underlying event to profit from your position, or trading a contract whose outcome you can secretly influence. If you can move the real-world result, betting on it is not clever, it is closer to rigging.
The second, and the one that actually catches most people, is the venue's own terms of use. Regulated exchanges write rules that ban participants from trading on events they are personally positioned to affect or to know about improperly. The standard shape of these rules is something like this:
- You cannot trade a contract on an event you have the power to determine or materially influence.
- You cannot trade if you are the source of the resolution, meaning you help decide or report the official outcome the contract settles against.
- You cannot trade on information you got by breaching a duty, for example confidential data your employer or a client entrusted to you.
- Employees and insiders of the venue itself, and often their close contacts, are restricted from trading on the platform at all.
Notice that these are about your relationship to the outcome, not about whether you happen to know more than the crowd. Knowing more is fine. Being able to bend the result, or being the person whose job is to call the result fairly, is not.
The gray zones, walked through
The interesting cases are the ones where smart people genuinely disagree, so let me walk a few.
Take a journalist sitting on a story. She has confirmed reporting that has not run yet, and there is a contract on the outcome her story will reveal. Securities law would not obviously touch this. But the analysis is not automatically clean. If the information belongs to her outlet and trading on it before publication breaches her duty to that employer, that is the misappropriation shape the venue terms and the anti-fraud rules can reach. If it is her own independent knowledge and she owes no one a duty over it, the case gets much weaker. The dividing question is not what she knows, it is who she got it from and what she promised them.
Now a campaign staffer trading a contract on their own race. This one is closer to the bright line than it looks. If the staffer can actually influence the outcome, through strategy, spending, or timing of an announcement, then trading the event they help drive starts to look like the manipulation case the CFTC cares about, not just an information edge. A junior staffer with no real lever is in a softer spot than a campaign manager who can move the machine.
Then the corporate employee trading an industry outcome. Say you work at one firm and you trade a contract on whether a rival gets acquired, or whether a regulator approves something in your sector. If your edge is pattern recognition and public breadcrumbs, that is ordinary skilled trading and the whole point of the market. If your edge is a confidential document a counterparty handed your company under an agreement, you have crossed into misappropriated-information territory, and the fact that the instrument is an event contract rather than a stock does not save you.
The pattern underneath all three is the same. The law is not asking how much you know. It is asking whether you obtained the knowledge by breaking a promise, or whether you can rig the result you are betting on.
A practical way to check yourself
When someone sends me a trade they are unsure about, I run it through four questions before anything else.
- Can I influence this outcome, even a little, through my job or my actions? If yes, do not trade it. This is the one that turns a bet into manipulation.
- Am I part of how this contract resolves, meaning do I help decide or report the official result? If yes, do not trade it.
- Did I get my edge by breaching a duty to an employer, client, or counterparty who trusted me with the information? If yes, treat it as off limits regardless of how the instrument is classified.
- Is my edge just being earlier, sharper, or more diligent than the crowd on public and semipublic signals? If yes, that is the market working as intended.
Three no's and a yes on the last one is the clean zone. Any yes on the first three and I tell people to walk away, because even if the securities analysis is murky, the venue terms and the anti-fraud rules will not care that you found a technicality.
One more thing worth saying plainly. Terms of use are not the same as law, but they have teeth. A venue can void your trade, seize the position, close your account, and hand your records to a regulator, and it can do that on a lower standard than a criminal case requires. So the practical constraint you will actually hit is usually the exchange's rulebook, not a courtroom. Reading that rulebook before you size a position on inside-adjacent knowledge is cheaper than learning it the hard way.
When we surface disclosure feeds and event-market signals on Blockcircle, this is the framing I keep coming back to, because the goal is to trade earlier and sharper on public information rather than to trade on something you were never supposed to have. The edge that survives scrutiny is the boring one. You did the work, you read the filing first, you connected two public dots the crowd had not connected yet. Everything past that line is where the trouble lives.