SNPS +12.9%: one of its biggest daily moves this year

Prove it

Every claim on the graphic, labelled: observed (straight from the data), calculated (worked out from it), or possible contributor (lines up in time, not a confirmed cause).

• OBSERVED
  SNPS +12.9% todayOct 1, 2026, 4:35 PM ET
• OBSERVED
  Its sector fund (XLK) +1.3% todayOct 1, 2026, 4:35 PM ET
• CALCULATED
  11.6 points more than its sectorHow: stock return − sector fund return · Oct 1, 2026, 4:35 PM ET
• OBSERVED
  S&P 500 (SPY) +0.3% todayOct 1, 2026, 4:35 PM ET
• CALCULATED
  Volume 2.6× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Oct 1, 2026, 4:35 PM ET
• CALCULATED
  Its biggest daily move in the past 250 trading daysHow: share of past daily moves smaller in size · Oct 1, 2026, 4:35 PM ET
• POSSIBLE CONTRIBUTOR
  News: “What's going on in today's session: S&P500 movers”Published around the move. Timing only, not a confirmed cause. · Oct 1, 2026, 3:05 PM ET
• POSSIBLE CONTRIBUTOR
  News: “Are we willing to let Big Tech self-police itself on AI?”Published around the move. Timing only, not a confirmed cause. · Oct 1, 2026, 1:54 PM ET
• CALCULATED
  After the 5 most similar SNPS days since Oct 13, 2021, the stock was higher 5 days later 3 of 5 timesHistory, not a forecast. · How: same-company days with a move of similar size and direction