Kalshi And Polymarket Just Moved Into Coinbase's Backyard

Coinbase has spent a decade telling regulators it's the grown-up crypto exchange. Two prediction-market startups just showed up to the same party.

Polymarket launched perpetual futures trading for crypto and stocks on Tuesday. Kalshi follows on April 27 in New York, with a product it's been teasing under the name "Timeless." Both platforms are now in direct competition with Coinbase, Robinhood, Crypto.com, and Gemini on one of the most profitable products in the industry.

What Perpetual Futures Actually Are

A perpetual future is a contract tied to the price of an asset, usually with leverage on top, that never expires. You can hold it as long as you've got the collateral to keep it open.

Most US crypto traders couldn't touch these until recently. Regulation kept them offshore on platforms like Binance and Bybit. That changed as prediction markets moved from "regulated by the CFTC for political betting" to "regulated by the CFTC for anything you can write a contract around."

Kalshi already runs over $1 billion in monthly crypto volume as of March. Polymarket has hit $1 billion a week in notional. The demand is there. The rails are now legal.

Why This Rattles Coinbase

Coinbase's trading revenue has been soft. Retail crypto volumes are down from their 2024 highs. Perps, where traders pay fees on leverage, have been the exception.

Now Coinbase shares that fee pool with Kalshi and Polymarket. Worse, Kalshi and Polymarket have something Coinbase doesn't: cross-over retail users who came in for election betting or sports contracts and are being pitched crypto as the next product on the same app.

It's the financial equivalent of your favorite sandwich shop opening a second counter that serves sushi.

How They Got Here Legally

The CFTC is the federal regulator that oversees derivatives, which is the contract family perpetual futures live in. Kalshi built its business inside that framework from day one by winning a long court fight over election-betting contracts.

That ruling cleared the path. Once a court said Kalshi's political contracts were legal CFTC products, the door opened for any event-based contract the exchange wanted to write. Polymarket, which had been offshore for US users, used the same legal opening to re-enter the US market through a regulated entity.

What regulators are watching next is leverage. Perps with high leverage and a retail user base have been the exact product the CFTC has flagged in past enforcement actions. Kalshi and Polymarket are launching inside those guardrails for now, but the line is narrow.

The other piece regulators are watching is cross-market flow. A trader who comes in on a sports contract and ends up in a leveraged crypto perp is exactly the kind of user pattern that raises suitability questions, which is why both platforms are publishing risk disclosures louder than the exchange norm.

Worth Noting

Robinhood has been quietly building out its own derivatives offering. Gemini has its own perps push. Crypto.com is already there.

The quiet winner might be crypto liquidity providers. More venues means more volume, more spread capture, and more hedging flow. That's where the money lives when five exchanges are fighting for the same trader.

Crypto trading just stopped being a three-exchange sport.