KRX Activates Buy-Side Sidecar for KOSPI Amid Sharp Rally
Key Takeaways
- •The KRX halted non-arbitrage program trading on the KOSPI for five minutes beginning at 9:25 a.m. after activating a buy-side sidecar during a sharp morning rally.
- •The KOSPI opened 3.85 percent higher and had risen 4.53 percent by 9:27 a.m., led by widespread gains in technology shares.
- •The rally was fueled by optimism over a potential U.S.-Iran agreement concerning the Strait of Hormuz and reduced anxieties about AI sector investment.
- •A buy-side sidecar is triggered when the KOSPI 200 Futures index climbs at least 5 percent for one minute or longer, pausing program trading to let markets stabilize.
- •South Korea's heavy dependence on Middle Eastern crude oil makes Strait of Hormuz developments especially consequential for its markets and economy.
The Korea Exchange (KRX) activated a buy-side sidecar for the benchmark Korea Composite Stock Price Index (KOSPI) on Wednesday after the index surged in early trading, propelled by broad gains in technology stocks.
Program trading for KOSPI-listed shares was suspended for five minutes beginning at 9:25 a.m., shortly after the market opened, according to the KRX.
The KOSPI opened 3.85 percent higher and continued to climb, reaching a gain of 4.53 percent as of 9:27 a.m. The rally was driven by growing hopes for a possible agreement between the United States and Iran regarding the Strait of Hormuz, as well as easing concerns surrounding artificial intelligence (AI) investment. For South Korea, one of the world's largest energy importers, developments affecting the Strait of Hormuz carry outsized significance, as the country sources the majority of its crude oil from the Middle East.
A buy-side sidecar is a market stability mechanism triggered when the KOSPI 200 Futures index rises 5 percent or more for at least one minute. Once activated, the sidecar pauses non-arbitrage program trading for five minutes, giving the market time to absorb rapid price movements and allowing investors to reassess orders before trading resumes. The sidecar is one of several circuit-breaker-style tools the KRX employs to maintain orderly trading conditions.
The benchmark KOSPI can be seen on a screen at a dealing room at Hana Bank in Seoul. Yonhap
Source: The Korea Times
