SK Hynix Inc. is preparing a $29 billion U.S. listing through American depository receipts, a move that has arbitrage traders poring over the company’s securities filings. Investors are flagging a single open question: can the ADRs be swapped freely for the firm’s Seoul‑listed shares? The answer will shape how the two markets price the chipmaker’s equity and could broaden its investor base overseas.

The conversion right matters because any restriction would lock ADR holders out of South Korean trading, potentially creating persistent price gaps between New York and Seoul. Traders rely on seamless arbitrage to keep valuations aligned; a missing exchange mechanism could widen spreads, affect liquidity, and prompt investors to demand a discount on the U.S.–listed instrument and may trigger regulatory scrutiny.

Arbitrage desks are now sending a flood of queries to brokers, seeking clarity before committing capital. Until regulators or the company confirm whether the ADRs can be exchange for Seoul-listed shares, market participants will price the offering conservatively, leaving the listing’s debut vulnerable to volatility. The unresolved conversion rule therefore determines pricing dynamics of the deal and may influence future ADR structures for Korean firms.