The share buybacks of Samsung Electronics and SK Hynix, which have been supporting downward
Samsung Electronics (005930) and SK Hynix (000660) are expected to complete their share buyback programs by mid-September, earlier than initially planned. Samsung has bought 39.8 million shares for 10.3 trillion won, while SK Hynix purchased 14.15 million shares for 24.39 trillion won. Their buybacks have supported the KOSPI index, but their conclusion may impact market stability. Analysts watch for third-quarter earnings and foreign fund inflows.
How this was made

The 30-second read
Why it matters
The early completion of these large‑scale buybacks removes a significant source of demand, likely leading to short‑term downside pressure on both stocks and the Korean index.
Market read
Both companies' buybacks have been a major floor for the KOSPI; their imminent conclusion could shift market sentiment and affect related semiconductor stocks.
What to watch
Potential policy changes on AI investment and macro‑economic pressures (oil, US rates) may dominate price action more than the buyback timeline.
Background
The article details the accelerated share repurchase programs of Samsung Electronics and SK Hynix, which have been supporting the KOSPI amid broader market headwinds.
Ticker impact
Samsung Electronics is accelerating its share buyback and may finish by mid‑next month, ending a major support to the KOSPI.
Expect modest downside pressure on Samsung and a slight pullback in the KOSPI after the program ends.
The buyback has been a key driver of market stability; its abrupt end removes that support.
SK Hynix is also set to finish its share repurchase by mid‑next month, ending another large KOSPI support component.
Likely modest downside for SK Hynix and a small drag on the KOSPI.
Similar to Samsung, the buyback has been a floor; its conclusion could shift market dynamics.
Market effects
Semiconductor sector may lose a key support level, increasing volatility in Korean tech stocks.
KOSPI could see reduced upward bias as two of its largest constituents finish buybacks.
Limited; primarily affects Korean equity market and foreign investors with exposure to Samsung and SK Hynix.
Counterpoint
If foreign funds re‑enter on the back of solid Q3 earnings, the end of buybacks could be offset by new inflows.
Key entities
- CompanySamsung Electronics
Korean semiconductor giant, ticker 005930.KS.
- CompanySK Hynix
Korean memory‑chip maker, ticker 000660.KS.




