[DigitalToday reporter Sangyeop Oh (오상엽)] The KOSPI jumped more than 6 percent on Tuesday and broke above the 7,300 mark for the first time. After topping 7,200 early in the session, it surged as high as 7,426.60 to set a new high for the year, with buying strong enough to trigger a buy-sidecar at one point.

The KOSPI ended up 447.57 points, or 6.45 percent, at 7,384.56. It opened up 156.02 points, or 2.25 percent, at 7,093.01 and extended gains to 7,426.60, but slipped below that level just before the close.

The Korea Exchange said a buy-sidecar was triggered at around 9:06:02 a.m. after a sharp rise in KOSPI200 futures halted the validity of programme buy orders for 5 minutes.

At the time of the trigger, the KOSPI200 futures index was up 66.05 points, or 6.28 percent, from the previous close at 1,116.55. It was the first KOSPI buy-sidecar trigger in about a month since April 8.

By investor type, foreigners were the sole net buyers, purchasing 3.1348 trillion won to lead the sharp rise. Individuals and institutions were net sellers of 576.0 billion won and 2.3090 trillion won, respectively.

Top market-cap stocks were mostly higher. Samsung Electronics jumped 14.41 percent to 266,000 won and SK Hynix rose 10.64 percent to 1,601,000 won. SK Square gained 9.89 percent, LG Energy Solution climbed 2.12 percent and Hyundai Motor rose 2.04 percent.

By contrast, Doosan Enerbility fell 0.16 percent, Hanwha Aerospace lost 2.18 percent, Samsung Biologics slipped 0.34 percent and Samsung Electro-Mechanics fell 0.65 percent.

The Kosdaq closed down 3.57 points, or 0.29 percent, at 1,210.17.

In the Seoul foreign exchange market, the won ended 14.70 won higher at 1,454.30 per dollar.