SKHX Slides Below the ADR Reference Price as SK hynix's $28B Bookbuild Runs

The Bleed Into Pricing Week

The move is continuation, not surprise. SK hynix has launched a roughly $28 billion Nasdaq ADR sale, the largest-ever US share offering by a foreign issuer, and the bookbuild is now open into a Thursday price-set and a Friday July 10 debut. SKHX, which tracks one common share of SK hynix converted from KRW to USD, is down 4.15% over 23 hours to about $1,517 as the Seoul line trades soft ahead of the print.

This is the same overhang that has defined the last several sessions: a ~2.5% new-share issuance (17.79 million shares) landing on the tape, with the market pricing the dilution before the ADRs actually clear. The company trimmed the raise to 43.14 trillion won ($28.14 billion) from an earlier 45.45 trillion won — a mechanical cut driven entirely by the reference stock sliding, not by weak books. Early demand was reported near $7 billion.

Reference Price vs. Spot

The number that matters is the reference. The regulatory filing set the ADR benchmark at 242,500 won per ADR — 2,425,000 won per common share, using SK hynix's July 3 Seoul close, with each ADR representing a tenth of a share. That reference itself already reflects erosion: Seoul closed 2,425,000 won versus 2,550,000 won on June 23, roughly a 5% fade from the June peak.

As of the latest Korean session the underlying was around 2,343,000 won, or about 3.4% below the reference. That's the tell. SKHX printing under the offering benchmark going into pricing week means the underlying is bleeding *into* the deal rather than firming *ahead* of it — the opposite of the pre-listing bid you'd want if books were tight and the overhang were cleanly absorbed. The FX leg adds noise: because the oracle converts KRW to USD, a firmer dollar can widen or compress the SKHX print independent of what Seoul does.

What Thursday Decides

The final ADR price gets set Thursday against the 2,425,000-won reference, with trading beginning Friday. A price at or above reference signals the book absorbed the supply and lets the dilution overhang clear; a price struck below it confirms the market is discounting the raise and keeps pressure on the underlying into the debut.

The backdrop is not helping the bid. SK hynix has already caught spillover from the broader chip tape, including a sharp Korean semiconductor selloff earlier this month tied to US tech weakness. The bull case is unchanged — proceeds fund Yongin fab construction, advanced packaging, and EUV tools to lean into HBM and AI memory demand — but that's a story for after the ADRs price. Between now and Friday, SKHX is a straightforward read on whether 2,425,000 won holds as a floor or becomes a ceiling.