One Bad Price, 960 Liquidations: Inside SK Hynix Flash Crash on Hyperliquid
The xyz.SKHYNIX perpetual on Hyperliquid crashed round 20% virtually immediately late on Monday night time, dropping from $1,131 to as little as $900, fully decoupling from pricing elsewhere on crypto exchanges.
On-chain knowledge signifies that your entire cascade stems from a single share commerce positioned from Seoul.
How One Bad Price Caused a Liquidation Cascade
It seems that through the pre-market window earlier than buying and selling opened on the South Korean Nextrade trade, there was an order to promote inventory for main chip producer SK Hynix positioned 30% under the earlier closing worth. This order might have been positioned accidentally.
With skinny pre-market liquidity, there have been no competing orders on Nextrade at that second, and that single commerce briefly set the worth of the inventory on that trade.
The worth corrected again to market worth inside two minutes, however by that point, the XYZ oracle answerable for setting the worth for this inventory on Hyperliquid had already consumed and relayed the data.
Just 4 seconds after Nextrade opened for buying and selling, the SKHYNIX oracle worth plummeted 15.6%, and liquidations started about 2 seconds later.
Freefall: The Final Figures
On Hyperliquid, customers had been betting on the worth of the semiconductor inventory utilizing leverage. X.com person MarketAlpha calculated that 960 accounts misplaced $57 million in a liquidation cascade on account of this oracle error, with $17.3 million in realized losses.
Today, a single share sale triggered thousands and thousands of {dollars} in liquidations on Hyperliquid.
At 11:00 pm UTC on July 27, $SKHYNIX suffered a flash crash on Hyperliquid, falling roughly 20% inside seconds earlier than quickly recovering.
The complete cascade started with a single share bought… pic.twitter.com/quFIo2o1Lc
— Markets Alpha (@MarketsAlpha) July 28, 2026
The backstop then triggered auto-deleveraging in opposition to worthwhile quick positions, with $10.8 million in positive aspects realized throughout 100 accounts. The largest positive aspects and losses for particular person accounts had been $2.55 million and $2.05 million, respectively. Surprisingly, the flash crash mimicked an actual inventory worth correction of round 15%, which passed off hours later on the open market.
Hyperliquid workers have identified that the trade is permissionless and that SKHYNIX is deployed and operated by XYZ, which is reportedly investigating the problem however has not launched an announcement.
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