Catch-Up Started in A-Shares and Taiwan
On June 22, Asia’s repair widened from Korea memory into A-shares and Taiwan. CSI 300 rose 2.4%, CSI 500 2.3%, and CSI 1000 1.1%. Taiwan’s TSMC rose 4.1%, and Alchip 9.9%. Korea’s SK hynix rose 5.6%, but Samsung slipped and the KOSPI gained only 0.7% (sources: China Securities Index Co., Yahoo Finance Taiwan, KRX; June 22, 2026).
This was not global synchronization. In the U.S., SPY fell 0.3%, QQQ 0.4%, and Nvidia 1.0%, while SMH rose 1.4% and Micron 6.8%. Broadcom fell 4.7%, AMD rose 2.7% (source: Yahoo Finance, June 22, 2026). Even within the same AI chain, memory held up better than ASICs and large-cap tech.
June 22 therefore looks more like regional catch-up. A-share indexes bounced, Taiwan caught a bid, and Korea still leaned on SK hynix. Capital did not leave AI hardware. It looked for markets that had not yet caught up, rather than lifting every technology asset indiscriminately.
The Other Side
The constructive reading is that A-shares, Taiwan, and Korean memory rising together means the AI supply-chain repair is spreading. Half of that is true: regionally, it did spread.
The other half needs restraint. The U.S. did not spread in the same way. Broadcom fell, Nvidia fell, and Samsung did not follow Hynix. The diffusion was across regions, not necessarily across the chain. The market was still choosing links that looked cheaper, later, or closer to bottlenecks.
What To Watch
The key on June 22 is sequence: U.S. and Korea memory moved first; Taiwan and A-shares caught up next. The next test is whether catch-up becomes confirmation. Confirmation would look like TSMC, A-share tech indexes, and Korea’s two giants stabilizing together. If only one pocket rotates at a time, capital is still chasing short-term elasticity, not rebuilding broad risk appetite.
Sources: China Securities Index Co. for CSI 300, CSI 500, and CSI 1000; Yahoo Finance Taiwan for TSMC and Alchip; KRX / Yahoo Finance Korea for KOSPI, SK hynix, and Samsung Electronics; Yahoo Finance for SPY, QQQ, SMH, NVDA, MU, AVGO, and AMD. Data window: June 22, 2026 close. Coverage is limited to major indexes and selected monitored instruments, not a full-market scan. This piece is a personal observation and does not constitute investment advice.