Semiconductor Manufacturing International

688981.SS · China

Semiconductor Manufacturing International traded $819.2M (converted to USD) on 23 Oct 2026, 1.6× its 20-session average. Sector: Semicap & Foundry.

504 trading days of history, to 2026-10-23 · all values converted to USD

Last close
$15.61
23 Oct
1-day change
+4.1%
vs previous close
Market cap
$75.8B
as of 23 Oct
Turnover
1.1%
of market cap traded
Dollar volume
$819.2M
as of 23 Oct
vs prior 20 sessions
1.6×
as of 23 Oct
Share of market volume
0.88%
as of 23 Oct
Volatility
58.7%
annualised

Infinity volume insights

since 24 March 2025

Every session our rules flagged for this company since 24 March 2025: 16. Those marked “In the feed” were published in the daily feed at the time; the rest are computed with the rules in use now. The feed shows a few a day across every market, so most never appear there. We began tracking this company on 29 September 2026; findings before then are marked “Before we tracked it”: it traded that way, and we were not yet watching.

  1. 2026-05-25Before we tracked it

    Semiconductor Manufacturing International turned over 4.8% of its market cap, one of the heaviest 1% of sessions for the companies we track in China

    The mark is 4.2%: the heaviest 1% of sessions over the last six months among the companies we track in China worth over $25B. Turnover compares across companies; the mark is specific to China. $5.8B against a 20-day average of $1.7B, on a rising price (+19.0%). Its heaviest session in the 402 sessions on record. The +19.0% move is 5.2 standard deviations from its usual daily change. Dollar volume 3.4× normal; turnover 4.8% of market cap (2.9× its usual turnover).

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Prices and volume via the daily pipeline, converted to USD. USD values converted at ECB reference rates.

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