TLDR Tech / Crypto
How One Share in Seoul Broke Hyperliquid's Largest Equity Market
A single SK Hynix share printed 29.96% below prior close on South Korea's Nextrade pre-market at 8:00 am Seoul time on July 28, feeding into TradeXYZ's SKHYNIX USDC-margined perpetual on Hyperliquid and triggering $57-80M in liquidations across ~960 long accounts. TradeXYZ controls 90%+ of HIP-3 open interest and ~98% of builder-market volume on Hyperliquid, where HIP-3 has grown from ~2% to ~50% of total perp volume since January, reaching $98B in 30-day volume and $3.6B network-wide open interest. Galaxy Research's Will Owens concludes the incident was a TradFi data quality failure rather than a crypto oracle problem, since every data provider read the same corrupted NXT book, and TradeXYZ's own order book held steadier than the external feed, suggesting onchain equity markets are maturing into price references rather than price consumers. TradeXYZ covered the liquidation losses as a one-time discretionary decision while SK Hynix fell 14.65% in the regular Seoul session and triggered circuit breakers on two consecutive days.
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