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Kalshi launches US 500 stock index perpetual future
Kalshi says the contract does not expire, removing the need to roll it over like a traditional future.
TLDR
Kalshi announced its US 500 perpetual future on October 6, 2026, calling it the first stock index contract of its kind in America. The company says the index covers large US companies weighted by market cap. Unlike traditional futures, the contract does not expire; Kalshi says that makes it easier to take a short position without managing rollovers.
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