AI stock movers today
The biggest gainers and losers across 34 AI semiconductor, optical, memory and neocloud names, with what the market sentiment score made of them. Updated 3 October 2026.
Prices as of 2026-10-03 00:39 UTC. Updates live in your browser.
Biggest gainers
Biggest decliners
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Segment sentiment, last 16 sessions
Each line is one segment's cap-weighted market sentiment. Where the lines diverge, one part of the supply chain is repricing on its own; where they move together, it is a broad move in AI infrastructure and the individual scores tell you less.
3 Sept to 2 Oct. Each panel shares one 0-100 scale, with the other five segments behind it in grey.
Optical & networking has moved furthest over the window at +37, Memory & storage least at -13. Trading sessions only, so each step is one market day against the one before it.
Leading the group
Five-day move against the cap-weighted move of the whole complex. In a week where everything rises, this is what separates a leader from a stock floating on the tide.
Lagging the group
Biggest sentiment shifts
Change in score since the previous session. A large shift means several inputs moved at once - momentum, relative strength, trend, volume, volatility or drawdown - not simply that the price did.
Hottest sentiment
Coldest sentiment
Low scores are not automatically opportunities. The score describes behaviour, not value - a name can sit at the bottom of this table for a year and keep going.
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Common questions
Which AI stocks are up today?
Coherent (COHR) +17.11%, Synopsys (SNPS) +12.64%, Credo Technology (CRDO) +12.24% lead the AI silicon complex today. 29 of 34 tracked names are advancing.
What is AI chip stock sentiment today?
The market-cap weighted sentiment across 34 AI semiconductor, optical, memory and neocloud stocks is 67 out of 100, reading warm. The score combines six weighted, price-based inputs: momentum, relative strength against the group, trend, volume, volatility and drawdown.
Which AI stocks are falling the most today?
Western Digital (WDC) at -8.62%, Seagate Technology (STX) at -7.95%, SanDisk (SNDK) at -1.14%. 5 of 34 tracked names are declining.
How often is this page updated?
Every weekday evening after the US close, and prices refresh live in your browser while markets are open.
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Market data and information only, not investment advice. Prices may be delayed.