SK Hynix ADR (SKHY): Ticker, ADS Ratio and Korea Stock Comparison

SKHY is the Nasdaq ticker for American Depositary Shares of SK hynix Inc. The underlying ordinary shares trade on the Korea Exchange under code 000660.

Official ADS ratio: each SKHY ADS represents one-tenth of one ordinary share. Therefore, 10 ADS = 1 Korean ordinary share.

How SKHY relates to 000660

The SEC-filed final prospectus identifies 000660 as the Korean listing and states the one-tenth ratio. Comparing one ADS directly with one Korean share would therefore be incorrect.

Parity value per ADS = 000660 price in KRW ÷ USD/KRW ÷ 10

Why the SKHY ADR premium can differ

Nasdaq and KRX generally do not trade at the same time. New information, USD/KRW changes, liquidity, bid-ask spreads, holidays, delayed quotes, depositary fees, settlement, and taxes can keep prices away from parity.

Read the timestamps

When Korea is closed, a current US quote may be compared with Korea's latest close. That is a useful valuation comparison, not a synchronized or risk-free arbitrage signal.

Official sources

Open the SK Hynix ADR premium calculator or read the calculation methodology.