Nadex, operating as OG.com Markets, has introduced a dollar-settled perpetual futures contract for the Sei (SEI) cryptocurrency. The contract, SEI-USD-Perp, has no expiration date and uses the CF Sei-Dollar Spot Rate as its reference price. It features funding payments exchanged every eight hours to keep the contract price aligned with the spot index. This new product allows traders to take long or short positions with a minimum trading unit of 100 contracts, accessible through CFTC-registered brokers. The contract began trading with two recorded trades on October 16.
Nadex's new Sei perpetual futures contract is introduced as context for cryptocurrency trading. For readers following major cryptocurrencies on Pluang, here is the market snapshot as of Oct 17, 2026 13:31 WIB: out of 50 priced cryptocurrencies, 11 rose and 38 fell today. Notable movers include SUSHI at Rp4.001 with a 1-day change of -3.26%, KSM at Rp79.932 down 2.98%, and ALGO at Rp2.037 down 2.49%.
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