Market-reference ETFs fall as U.S. exchange breadth turns sharply negative on September 23
On September 23, SPY, QQQ and DIA all declined, while decliners outnumbered advancers across the NYSE, NYSE American and Nasdaq-listed stocks. Micron and Meta recorded the highest turnover among the selected market leaders; Palantir rose, while Alphabet and McDonald’s fell among the selected issue stocks.
Market at a glance
The SPDR S&P 500 ETF Trust (SPY), which tracks the S&P 500, closed at $767.81, down 0.72%. The Invesco QQQ Trust (QQQ), which tracks the Nasdaq-100, closed at $741.21, down 0.84%. The SPDR Dow Jones Industrial Average ETF Trust (DIA), which tracks the Dow Jones Industrial Average, closed at $514.30, down 0.71%.
Breadth was negative on every reported exchange. NYSE-listed stocks recorded 558 advancers, 2,159 decliners and 129 unchanged issues. NYSE American recorded 530 advancers, 4,072 decliners and 102 unchanged issues. Nasdaq-listed stocks recorded 1,023 advancers, 3,685 decliners and 549 unchanged issues.
Market leaders
Micron Technology (MU) closed at $1,071.88, down 2.22%, on $23.12 billion in turnover and 21.57 million shares traded. Its five-session change was 15.69%.
Meta Platforms (META) closed at $744.10, up 1.02%, on $22.94 billion in turnover and 30.83 million shares traded. Its volume was 1.46 times its 20-session average, and its five-session change was 10.60%.
Issue stocks
Alphabet Class A (GOOGL) closed at $337.83, down 3.80%, on $12.02 billion in turnover. Its five-session change was -1.47%, with volume at 1.36 times its 20-session average.
McDonald’s (MCD) closed at $238.32, down 4.81%, on $3.96 billion in turnover. Its volume was 3.35 times its 20-session average, and its five-session change was -4.12%.
Palantir Technologies (PLTR) closed at $191.79, up 3.68%, on $6.74 billion in turnover. Its five-session change was 10.01%, with volume at 1.29 times its 20-session average.
Next Trading Day Checkpoints
- Track whether the negative advancer-decliner balance persists across NYSE, NYSE American and Nasdaq-listed stocks.
- Monitor follow-through in the selected stocks: MU, META, GOOGL, MCD and PLTR.
- Check the next session’s moves in SPY, QQQ and DIA as market-reference ETFs.
This article reports market data for September 23, 2026. The selected stocks are system-selected market leaders or issue stocks, not recommendations. ETF performance is reported for the ETFs themselves and is not a direct statement of index performance.