Polymarket Just Entered a $90 Trillion Market — Where a 5% Move Can Wipe You Out

Financial markets are increasingly turning price movements themselves into tradable products. Perpetual futures, or “perps,” have become one of the biggest examples, with global trading volume exceeding $90 trillion in 2025, according to estimates cited by Kalshi and reported by Reuters. 

Unlike traditional futures, perps never expire, allowing traders to maintain long or short positions indefinitely. Now Polymarket is stepping into that market, giving its retail-heavy user base access to leveraged exposure across crypto, stocks, indexes, and commodities. The opportunity is enormous. So is the risk.

Polymarket Goes From Predictions To Leverage

Polymarket launched its perpetual futures product on Sept. 3, initially offering 10 markets before expanding to 67 within hours, according to Decrypt. The contracts cover assets ranging from Bitcoin (CRYPTO:BTC) and Ethereum (CRYPTO:ETH) to the S&P 500, Nasdaq-100, gold, silver, oil, and individual stocks.

Perps work differently from traditional futures because there is no expiration date and therefore no need to periodically roll a contract. Instead, a funding-rate mechanism uses periodic payments between longs and shorts to keep the perp price aligned with the underlying asset.

That sounds straightforward. The leverage is where things get interesting. Polymarket is offering up to 20x leverage on some contracts, although maximum leverage varies by asset, according to the company’s product documentation.

At 20x leverage:

• $1,000 of margin controls $20,000 of exposure.
• A 5% gain in the underlying can produce roughly a 100% gain on the margin, before fees and funding.
• A 5% move against the position can eliminate the margin.
• Liquidation can occur sooner because maintenance-margin requirements and fees reduce the room for error.

To put that into everyday-investor terms, a 5% move in a stock is a routine bad day for some volatile companies. With 20x leverage, it can become a portfolio-ending event.

The Small-Bet Problem Meets Big Leverage

There is another reason this expansion is important: Polymarket’s typical user isn’t trading like a hedge fund.

BeInCrypto’s analysis of Polymarket activity found the median trade size is $10 with an average of $89, where the average is pulled higher by a small number of large traders. More than 57% of users traded less than $100 per transaction, while more than 80% traded less than $500. Pew Research Center separately analyzed 11,989 Polymarket accounts and found an average trade value of just $6.50.

That makes Polymarket look less like a market dominated by whales and more like a high-volume retail trading venue.

Perps change the equation because a small cash outlay can now control a much larger position. Funding payments are also calculated against the full notional exposure, not merely the trader’s margin. In short, $100 doesn’t necessarily mean $100 of risk.

Key Takeaway

Polymarket’s move into perpetual futures gives it a foothold in a market that generated more than $90 trillion of global volume in 2025, according to Reuters’ reporting on Kalshi’s estimate. But investors need to separate market opportunity from trading opportunity.

Twenty-times leverage can magnify gains, but it also compresses the distance between a modest market move and forced liquidation. For a platform whose median trade is only $10, that difference is key.

Ultimately, the smart takeaway isn’t that Polymarket has discovered a shortcut to bigger returns. It has introduced a much more powerful financial instrument to a user base accustomed to making small bets.

While that can create a huge business opportunity, for traders, the math is unforgiving: when 20x leverage turns a 5% move into a potential 100% loss, being right eventually isn’t enough. You have to be able to survive the move first.

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