SPY closed up 0.42% at 766.48 on Monday, Oct 19, but among S&P 500 members 176 advanced and 324 declined (3 unchanged).
The equal-weight S&P 500 (RSP) fell 0.32% on the day, 0.75 points behind SPY, while the Nasdaq-100 (QQQ) rose 1.21%.
Volume in declining stocks was 1.44B shares, versus 1.16B in advancing stocks.
On Friday, Oct 16, decliners also led, 254 to 249, on a day SPY fell 1.11%.
Data only. Not investment advice.