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Summarize this article with:
On the same Tuesday, April 21, 2026, two heavyweights of predictive markets strike simultaneously. Polymarket and Kalshi announce their entry into crypto perpetual futures. A decision that disrupts the established order in the American derivatives market. It puts Coinbase and Binance facing new regulated rivals.
In brief
- Polymarket announced on April 21, 2026 the launch of perpetual futures with up to 10x leverage on BTC, gold, Nvidia and other assets.
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