The US stock market is open (09:30–16:00 ET). KIOXIA perpetual futures also trade outside those hours — nights, weekends and market holidays included.
Snapshot as of 20:28 UTC. The chart and price above update live. Machine-readable version.
Kioxia — NAND flash. Perplo lists it as a perpetual future: you trade the price of Kioxia, not the share itself.
There is no expiry and no market-hours window — KIOXIA trades 24/7. You post USDC as collateral, take either side with leverage, and settle onchain on Hyperliquid. No brokerage account.