On July 28, the SK Hynix perpetual contract on Hyperliquid experienced a sudden 17.9% plunge. This came after a lone pre-market trade in South Korea’s NextTrade exchange priced one SK Hynix share at 1.272 million won, sharply below the previous close of 1.816 million won. The abnormal price input fed into the contract’s oracle system, driving the marked price down to nearly $927 from around $1,128 before recovering above $1,100.
The trade was reportedly an order error compounded by thin liquidity during the early session, pushing the share to hit its daily lower price limit briefly. South Korean semiconductor stocks were already under pressure that day, but the initial pre-market dip far exceeded later market declines. SK Hynix closed at 1.55 million won, down 14.65% for the session, less dramatic than the flash move triggered by the isolated trade.
This perpetual futures contract, identified as xyz:SKHX on Hyperliquid and operated by Trade.xyz under the HIP-3 framework, uses an oracle derived from price feeds of one SK Hynix common share traded in South Korea. Trade.xyz manages all aspects including use and settlements and has launched an investigation into the oracle-driven price disruption. Hyperliquid representatives confirmed the market’s operation and the ongoing probe, with updates pending once conclusions are reached.
The incident highlights the vulnerability of oracle-dependent derivatives markets to anomalies in underlying spot trading, especially with thin liquidity and potential errors. The SK Hynix perpetual contract offers up to 10x use, amplifying such sudden moves for traders.
This material is for informational purposes and not financial advice.
