New York, June 12, 2026, 05:03 (ET)
- Coupang finished Thursday at $17.25, rising 14.09%. Shares edged down to $17.00 early Friday in premarket trading.
- South Korea hit Coupang with its biggest-ever privacy fine, linked to last year’s data breach and other data-collection claims.
- Coupang said it expects to log the estimated $410 million charge in operating expenses for the second quarter.
Coupang, Inc. (CPNG) gained ground Thursday, jumping 14.09% to finish at $17.25 despite South Korea imposing its biggest ever data-breach fine on the e-commerce group. The NYSE-listed stock moved between $15.84 and $17.32 during the session. Early Friday premarket trading put CPNG at $17.00, 1.45% lower than Thursday’s close, according to .
Shares surged after investors got a concrete number for a regulatory risk that’s hovered over Coupang since it revealed a breach last year. South Korea is set to fine Coupang 625 billion won, or roughly $409.3 million, after a Reuters report detailed a leak of customer data and illegal collection of personal info. The Personal Information Protection Commission said over 33 million users were hit.
Regulators called it a failure of Coupang’s internal controls instead of a sophisticated outside hack. “This accident occurred due to Coupang’s lack of safety measures and systems, not sophisticated hacking,” said PIPC Chairperson Song Kyung-hee at a Thursday briefing, according to Reuters. The regulator said Coupang missed the legal 72-hour window to report the breach and also gathered online activity data from about 11 million users without their agreement. Reuters
Coupang, in its own U.S. 8-K, said the impact for shareholders is more defined. The company told the SEC the PIPC hit it with an administrative fine of about $278 million for the already reported November 2025 data incident. Another fine, roughly $132 million, is for what officials say are violations in collecting and storing data for a third-party ad program. Coupang said formal written decisions are still pending, meaning final amounts and findings could change. Its Korean unit plans to seek judicial relief in the Seoul Administrative Court.
Coupang said it will take the estimated $410 million hit from fines in its second-quarter 2026 results, when profitability is already facing questions. The charge is set to show up in operating, general and administrative expenses. Payments aren’t automatically delayed during appeal and aren’t tax deductible.
The fine stirred up more debate in South Korea about the reach of privacy penalties for big tech. The Korea Times said Friday that the 624.68 billion won fine is over four times higher than the last record, which hit SK Telecom. Jung Yeon-sung, business administration professor at Dankook University, told the paper, “Because the penalty is on par with Coupang Inc.’s operating income, investment is likely to be curtailed going forward.” The Korea Times
Coupang moved into the penalty phase following a soft first quarter. On May 5, the company posted net revenue of $8.5 billion for the first quarter, up 8% from a year ago. Operating loss came in at $242 million, with a net loss to Coupang stockholders at $266 million. Product Commerce active customers ticked up 2% to 23.9 million. Investors now have to weigh that customer growth against privacy expenses now hitting the P&L.
The focus for the stock now is not just the size of the fine, but whether the final number removes enough uncertainty to balance ongoing legal, compliance and trust issues. Next, investors will be watching the PIPC’s official decision, any update from Coupang’s court appeal in Seoul, and the company’s Q2 results. The fine should show up as a direct hit to operating costs there.
