Inside the brutal 2-minute flash crash sending a $400M South Korean market plunging on Hyperliquid
A two-minute worth shock in a Hyperliquid market tied to South Korea’s SK Hynix has put the mechanics and oversight of equity-linked perpetuals below scrutiny.
SKHX, a TradeXYZ-operated perpetual on Hyperliquid that tracks the US greenback worth of 1 Korean SK Hynix share, briefly sank to $927 throughout South Korea’s pre-market window earlier than recovering inside roughly two minutes, based on local media.
A later DefiLlama snapshot put open curiosity at $407 million, down 20% over 24 hours, whereas 24-hour trading volume reached $959 million. Open curiosity measures the rolling worth of excellent positions, incorporating adjustments in each place dimension and worth.
The underlying market was already below extreme strain. South Korea’s KOSPI closed 10.84% decrease after a 20-minute marketwide circuit breaker, whereas SK Hynix’s Korean shares completed down 14.65% at 1.55 million gained, Yonhap reported.
TradeXYZ’s contract specification defines SKHX as the greenback worth of 1 SK Hynix frequent share, calculated by changing the Korean share worth at the prevailing USD/KRW fee. TradeXYZ paperwork an external-pricing window from 8:00 a.m. to eight:50 a.m. Korean time. SKHX is separate from the firm’s US-listed depositary receipt and from tokenized shares.
From worth enter to liquidation
Hyperliquid’s HIP-3 specification provides a market deployer management over its oracle definition, oracle costs, leverage limits and settlement. The deployed market makes use of HyperCore’s order books and margin system.
TradeXYZ says its relayers compute and transmit the XYZ market’s oracle, mark and exterior costs about each three seconds. HyperCore handles matching, margining, liquidations and auto-deleveraging. In the documented design, TradeXYZ provides the bespoke worth inputs and HyperCore applies its threat equipment to the ensuing mark.
The HIP-3 deployer API accepts an oracle worth, an external-perpetual worth and as many as two deployer-supplied mark-price inputs. HyperCore contributes a native worth derived from the greatest bid, greatest supply and newest commerce. TradeXYZ says the remaining mark is the median of the oracle, a smoothed oracle-to-market distinction, and that native order-book worth.
The rulebook exhibits how SKHX pricing is supposed to work. The plunge to $927 remains to be a black field, with the uncooked observations and mark-price components absent from the public report. DefiLlama names Pyth Lazer as the oracle supplier. TradeXYZ says its relayer and updater carry costs into HyperCore. The incident-level handoff between these methods stays the lacking piece.
BlockMedia reported at 18:41 Korean time that Hyperliquid mentioned TradeXYZ was investigating and deliberate an replace after reaching a conclusion. At that cutoff, the reviewed sources contained no official incident report or event-specific account of compensation, insurance coverage impression, a halt, a cap change, or slashing.
HIP-3’s allocation of controls is evident at the same time as duty for this worth shock stays open: the deployer operates the oracle settings, and HyperCore executes the market and threat features. TradeXYZ’s findings will decide whether or not the episode mirrored the revealed design below excessive situations or a price-feed safeguard that wants revision.
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