Korean stocks opened sharply higher Friday, surging by 13 percent, driven by gains in semiconductor shares stemming from an overnight rally in U.S. tech giants backed by a strong earnings report from U.S. tech giant Microsoft. After opening 1.15 percent higher, the benchmark Korea Composite Stock Price Index (KOSPI) widened gains, raking in 727.42 points, or 13 percent, to 6,320.98 as of 9:15 a.m. The country's benchmark suffered a deep rout for the past three consecutive sessions. The KOSPI fell nearly 40 percent this month alone. With the surge, the bourse operator activated a buy-side sidecar for the KOSPI at 9:06 a.m., suspending five-minute program trading for the KOSPI-listed shares. A buy-side sidecar is triggered when the KOSPI 200 Futures index rises 5 percent or more for at least one minute. Overnight, Wall Street closed higher as Microsoft jumped a record 15 percent after exceeding expectations for current-quarter sales and cloud growth in its second-quarter report, easing fears about massive spending on artificial intelligence (AI) infrastructure. The S&P 500 climbed 1.66 perce