15-minute crypto contracts power Robinhood and Kalshi volume surge
Short-dated bets on bitcoin, gold and oil are now the fastest-growing prediction products at Robinhood, and crypto has become the second-largest category on Kalshi and Polymarket after sports.

Prediction markets are turning into fast trading venues, and 15-minute crypto contracts are leading the shift. Robinhood executive JB Mackenzie said on Thursday, Oct. 23, that price contracts on bitcoin, gold and crude oil are now its fastest-growing prediction products, as traders look beyond sports and elections, CoinDesk reported from the NEXTPredict conference in New York.
What happened
"We've now started to see price volatility contracts, such as bitcoin, crude oil, gold, start to dominate the marketplace," said Mackenzie, who runs futures and prediction markets at Robinhood. Sports remains the biggest product, he said, but the largest single event contract in September was the Federal Reserve's rate decision. Contract lengths are shrinking: "It started off with a week. It's moved to a day, and now we're down to 15."
Industry data show the same trend. Crypto contracts set a weekly record of $2.7 billion in notional volume across Kalshi and Polymarket, making crypto the second-most-traded category on both platforms behind sports, Bitcoin.com News and Crypto Briefing reported. Kalshi's bitcoin contracts alone topped $2 billion in a week.
Between Sept. 1 and 28, Kalshi handled about $8.17 billion of crypto volume, of which roughly $7 billion, or 86%, came from 15-minute markets, Bitcoin.com said. Crypto's slice of Kalshi's total volume climbed to 14.5% in September, from about 2.6% before the 15-minute format arrived. Polymarket's U.S. platform did $91.76 million in its first full week of 15-minute bitcoin markets, from Sept. 23 to 29, as daily volume climbed from $2.40 million to $27.71 million and transactions from 63,650 to 739,034.
The boom sits inside a bigger one. Kalshi's total contract volume across all categories reached $19.03 billion in the week of Oct. 5 to 11, and daily volume this month has regularly run between $3.9 billion and $4.4 billion, Crypto Briefing reported.
Why it matters
The products work like capped-risk leverage: traders can be wrong but cannot be liquidated. Mackenzie said 15-minute crypto contracts resemble zero-day options and noted that both can produce rapid losses even though their structures differ.
For brokers, the business is about customer acquisition as much as fees. Users who start with event contracts quickly move into "equities, crypto, futures, options," Mackenzie said, and some open retirement accounts. Robinhood has 11 businesses with more than $100 million of annual revenue each, and prediction markets could be its fastest-growing, he said. Wallets are piling in too, as seen in the Phantom and Kalshi rollout.
The growth comes as spot crypto trading volumes decline, Crypto Briefing noted, giving exchanges an incentive to keep retail users engaged with new formats.
What's next
Regulatory risk has not gone away. Sports contracts face challenges from state gambling regulators, which could make crypto venues more cautious about expanding, Bitcoin.com reported, citing Bloomberg. Kalshi already set records this month, including the record weekend we covered.
Bitcoin's drop below $80,000 on Saturday is the kind of move that fuels short-dated betting. Whether 15-minute crypto contracts keep growing will depend on volatility and on how regulators treat them; Mackenzie's full remarks are in CoinDesk's report.
This article is for information only and is not investment advice.