Why is POSCO stock rallying today?

POSCO's stock surged 3.7% to trade at KRW 283,500, buoyed by the company's strong third-quarter 2026 financial results. Consolidated revenue rose 10.9% to KRW 19.14 trillion, while operating profit increased nearly 48% to KRW 945 billion compared to the same period last year. The steel division led the recovery, with steel operating profit reaching KRW 455 billion, up KRW 181 billion quarter-over-quarter and operating margin at 4.6%.

POSCO also announced the completion of its second lithium plant in Argentina, ramping up annual production to 50,000 tons, and acquired Chord’s Marcellus shale gas assets for $550 million, securing an equivalent annual LNG production of 1 million tons. Broader market gains contributed to the rally, with Seoul stocks ending over 2% higher, KOSPI closing at 5,859.08 points, a 2.24% increase.

Institutional buying, totaling KRW 364.2 billion, offset retail and foreign selling, further propelling POSCO's stock. The earnings briefing, scheduled for 3:00 PM, saw the stock climb steadily before the presentation, peaking at KRW 289,000. Despite trading near its 52-week low of KRW 268,000, the robust results reinvigorated investor confidence in POSCO's multi-quarter recovery plan.