SK hynix's stock plunged 8.68% during intraday trading on Wednesday, marking a sharp reversal from its recent strong performance. The memory chipmaker's U.S.-listed American Depositary Receipts (ADRs) had surged approximately 27% in the previous regular session, reaching record highs following their recent U.S. listing.
The decline is primarily attributed to investors locking in profits after the dramatic intraday rally. Market analysts point to compression of the stock's significant premium as a U.S.-listed ADR over its underlying South Korean shares as a key factor driving the sell-off. The ADR premium had ballooned to over 50% compared to local shares, creating selling pressure as traders anticipated the gap would narrow.
Structural constraints in the arbitrage mechanism between the two markets have prevented normal price convergence, with conversion between ADRs and local shares not possible until July 29 at the earliest. Additionally, Korean brokers have agreed to tighten investor protections for single-stock leveraged ETFs tracking SK Hynix, which could affect trading dynamics. Options activity showed notable bearish positioning, with a $3.17 million purchase of long-dated put contracts signaling cautious sentiment among some investors.
