Biggest Polymarket Markets by Volume
The most-traded prediction markets on Polymarket right now — ranked by total and 24-hour volume, each with live implied odds. Updated hourly.
The biggest Polymarket market right now is “Will the U.S. invade Iran before 2027?” with about $76.1M in cumulative volume — one of 24 markets below totalling $448.6M traded. Updated October 2026.
Biggest by total volume
All markets
Hottest in the last 24 hours
All markets
Why the biggest markets matter
A market's volume is the total dollar value of shares traded in it. The biggest Polymarket markets — major elections, Fed decisions, crypto price levels and marquee sporting events — pull the most volume because the most people have an opinion and the most money is willing to back it. That depth makes their implied odds a sharper probability estimate than a thin market's: tighter books, faster reaction to news, less slippage.
Polynyx is the independent analytics layer on top. These cards pull the same live odds and volume as the interactive markets grid, and every market page shows which wallets are trading it and how the sharpest traders are positioned. You place bets on Polymarket itself; nothing here is financial advice.
Biggest Polymarket markets — frequently asked
- What are the biggest markets on Polymarket?
- Right now the biggest Polymarket market by cumulative volume is "Will the U.S. invade Iran before 2027?", with about $76.1M traded. Polynyx ranks the biggest markets live by total and 24h volume, each with current implied odds — this page updates hourly.
- How is market volume measured?
- Volume is the total dollar value of shares traded in a market. Cumulative (total) volume is the market's whole lifetime; 24h volume is the last day's activity — a good read on what's hot right now. Polynyx shows both on every market.
- Do bigger markets have better odds?
- Bigger, more-traded markets tend to have tighter order books and prices that react faster to news, so the implied odds are usually a sharper probability estimate than a thin market's. Polynyx also shows which wallets are trading each market so you can see where the smart money sits.
- Where can I see all Polymarket markets by volume?
- Browse and sort every live market on the Polynyx markets grid, or jump to a category (politics, sports, crypto, esports, economics, pop culture). This page is the curated top of that list.
Ranking 24 of Polymarket's biggest live markets by cumulative volume — $448.6M traded across the set. Live odds and volume via Polynyx; updated October 2026.
