
Nextrade will temporarily ban daily limit-up and limit-down orders from Aug. 12 before adding a static Volatility Interruption on Sept. 14 after thin premarket SK Hynix trades distorted opening prices.
Nextrade, or NXT, said it will temporarily prohibit orders at a stock's daily upper and lower price limits from Aug. 12 and introduce a static Volatility Interruption on Sept. 14 after SK Hynix again briefly opened at the daily 30% lower limit in its 8 a.m. premarket on Aug. 6. In that episode, 11 shares traded at 1.168 million won, 29.97% below the prior close of 1.668 million won, before a two-minute call auction helped narrow the fall. The move renewed criticism that thin-liquidity continuous matching can let tiny trades distort opening prices. It also echoed a July 28 one-share lower-limit execution that fed the oracle input for an SK Hynix perpetual futures product on TradeXZY, contributing to forced liquidations reported at about 81 billion won to 83 billion won and more than 900 users' realized losses of $17.4 million, according to Bloomberg citing Allium.