Mid/Small Caps Moved Faster
On May 7, the second post-holiday A-share session kept repairing, with a clear structure: CSI 1000 +1.63%, CSI 500 +1.26%, CSI 300 +0.48%. Mid/small caps led, so capital was not only buying large-cap index support; it was restoring risk elasticity.
Offshore markets did not show the same picture. U.S. tech split: NVDA +1.77%, but QQQ -0.12%, SPY -0.31%, AMD -3.07%, MRVL -7.05%, CoreWeave -6.62%, TSM -1.28%. Korea memory had one strong edge, with SK hynix +1.93%, but Samsung Electronics -1.10% and KOSPI only +0.11% (local market DB, 2026-05-07).
The signal was regional: A-share mid/small-cap risk appetite repaired while offshore high beta was divided.
Not Global Tech Confirmation
If the global tech chain were turning stronger in unison, QQQ, AMD, MRVL, and TSM should have been more aligned. They were not. CSI 1000 strength looked more like mainland post-holiday risk repair than U.S. tech pulling everything higher.
That makes the A-share line more informative. It was not dragged up mechanically by U.S. tech. Mainland China was restoring beta on its own rhythm. But that also means the next read should come from local breadth and turnover, not only from NVDA.
The Other Side
The cautious point is that mid/small caps leading may simply be post-holiday catch-up. If positioning was conservative before the break, liquidity returning can naturally lift CSI 1000 more.
Offshore high-beta dispersion may also be temporary. NVDA still rose, and SK hynix rose too. The AI line had not gone out; its internal ranking was unstable.
Closing
May 7 left a clear combination: A-share mid/small caps ran first, offshore tech split, and Korea memory was only locally strong. It looked less like global confirmation and more like mainland risk elasticity returning.
The next question was whether CSI 1000 could keep leading CSI 300, or whether this was only one post-holiday bounce.
Data sources: A-share broad indices (CSI 1000 / 500 / 300), US semiconductors and large-caps (NVDA, QQQ, SPY, AMD, MRVL, CRWV, TSM), and Korean benchmarks (KOSPI, plus Korean memory names) price data from the local market DB, trading day 2026-05-07, queried 2026-05-26.