PredictIt review (2026): the small, legal US market

Published 2026-05-22 · Last reviewed 2026-08-07

Catie Di StefanoFounder & Editor-in-Chief

Reviewed by Catie Di Stefano

TL;DR

PredictIt operates under a CFTC no-action letter granted to Victoria University of Wellington.
Strict limits: $850 invested per market, 5,000 traders per market.
Best-in-class political coverage; weak everywhere else.

New to this? Read this first

Prediction markets price events in cents, not odds. Here is the vocabulary used on this page, in plain English.

Price = probability: A contract that pays $1 trading at 12¢ means the market thinks there's a 12% chance.
YES / NO share: YES pays $1 if it happens. NO pays $1 if it doesn't. You can never lose more than you paid.
+609 (American odds): Sportsbook shorthand. Bet $100, win $609 profit. That's about a 14% implied chance.
Vig: The book's built-in margin. Sportsbook percentages add up to more than 100%; market prices don't.
Liquidity: How much money is in the market. More money means you can get in and out at the price you see.

PredictIt is the dorm-room prediction market: tiny position caps, deep political coverage, and a regulatory cliffhanger that won't quit.

PredictIt scorecard2.2 / 5

App quality	2/5	Web-only, dated interface; no native mobile apps.
Fees	1/5	10% on profits plus 5% on withdrawals — the category's highest.
Market selection	2/5	Deep on US politics, almost nothing else.
Payout speed	3/5	Standard ACH withdrawals, minus the 5% fee.
Legal/trust	3/5	US-legal under a CFTC no-action letter clouded by litigation.

The headline verdict

PredictIt is a niche venue worth knowing about, not a primary trading platform. The $850-per-market cap means it can't be your main book. But for certain political markets — congressional control, presidential primaries, individual Senate races — PredictIt has been the canonical prediction-market venue for a decade.

Funding our test account by ACH took the usual couple of business days, and we hit the $850 position ceiling on a single Senate market almost immediately — a hard reminder that this is a research venue, not a place to trade size.

What's good

Legality. US-legal under a CFTC no-action letter; PredictIt accepts US users without geo-restriction.
Political market depth. Long-running coverage of US elections, individual races, and policy outcomes — often listed before Kalshi catches up.
Resolution track record. Years of clean, timely settlements on political contracts.
USD funding. Standard ACH and debit-card funding.

What's bad

$850 cap per market. Hard limit; you cannot scale beyond it.
10% profit fee + 5% withdrawal fee. The highest fee structure in the category.
Web-only. No native mobile apps.
Limited market types. Almost exclusively political. No sports, no crypto, no admissions.
Regulatory uncertainty. The CFTC moved to revoke the no-action letter in 2022; PredictIt's continued operation is contingent on ongoing litigation.

Who should use PredictIt

Political junkies trading small. Researchers studying market-based forecasting. Anyone who wants exposure to a specific congressional race that hasn't been listed on Kalshi yet.

Who should not

Anyone trading real size. Anyone who needs low fees. Anyone whose interest is non-political markets.

Odds → probability → payout

Sportsbook odds (e.g. +609 or -150)Your stake ($)

Implied chance: 14.1%
Fair market price: 14¢
Pays back: $141.80
Profit if right: $121.80

Sportsbook odds include the book's margin, so the implied chance shown here is slightly higher than the true probability. A prediction-market contract priced below this number is the better deal. Reverse check: 14.1% ≈ +609.

Your first trade, step by step

Fund a small balanceOpen an account, verify your ID, and deposit $10–$20 by debit or ACH. You must be 18+ and in an eligible state.
Find the marketSearch the event by team, player or headline. Check the price and the volume — thin markets move a lot on small orders.
Read the price as a probabilityA 23¢ YES contract means the market gives it about a 23% chance. If you think it is higher than that, YES is the value side.
Place a limit orderEnter the price you want rather than taking the market. You buy shares, not a bet slip — the most you can lose is what you paid.
Decide your exitYou can sell any time before the event resolves, or hold to settlement where each winning share pays $1.

Ready to try it: open Kalshi. 18+, eligible states only. Trade what you can afford to lose.

Sources & further reading

Frequently asked questions

Is PredictIt legal in the US?

Yes — PredictIt operates under a long-standing CFTC no-action letter granted to Victoria University of Wellington for academic research. The CFTC moved to revoke it in 2022; ongoing court actions have kept PredictIt running.

What is PredictIt's position limit?

$850 of total investment per market and 5,000 unique traders per market. These caps are the trade-off for the no-action letter status.

What are PredictIt's fees?

10% on profits and 5% on withdrawals. By far the highest fees in the category — a deliberate constraint of the research-exemption model.

Is PredictIt better than Kalshi?

Only for niche political markets that Kalshi hasn't listed. For everything else — fees, scale, mobile app, market selection — Kalshi is better.

What does the price actually mean?

A contract settles at $1 if the event happens and $0 if it doesn't, so the price is the market's probability. A contract at 23¢ means roughly a 23% chance, and $1 buys about 4.3 shares.

How much money do I need to start?

You can place a real trade with $10–$20. Contracts are priced in cents, so a $20 balance buys dozens of shares on a cheap market. Start small until you have seen a position settle.