Hana Bank dealers celebrate the KOSPI index topping the 9,000-point markt at the bank in central Seoul, Thursday. Korea Times photo by Shim Hyun-chul

Seoul stocks crossed over another round-number milestone on Thursday, topping the 9,000-point mark, buoyed by semiconductors and other tech heavyweights.

The benchmark Korea Composite Stock Price Index (KOSPI) opened higher and breached the new landmark, reaching 9,000.68 as of 12:52 p.m.

It took less than a month for the index to top the new milestone, after breaking the 8,000-point mark on May 26.

The index had delivered a record-breaking run for five straight sessions since last Thursday on the peace agreement reached between the United States and Iran, as well as extended optimism for the artificial intelligence (AI) sector.