NOC −4.4%: an unusually large move for this stock

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
  NOC −4.4% todaySep 30, 2026, 2:35 PM ET
• OBSERVED
  Its sector fund (XLI) −0.8% todaySep 30, 2026, 2:35 PM ET
• CALCULATED
  3.6 points less than its sectorHow: stock return − sector fund return · Sep 30, 2026, 2:35 PM ET
• OBSERVED
  S&P 500 (SPY) +0.4% todaySep 30, 2026, 2:35 PM ET
• CALCULATED
  Volume 1.0× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Sep 30, 2026, 2:35 PM ET
• CALCULATED
  Bigger than 98% of its daily moves over the past 250 trading daysHow: share of past daily moves smaller in size · Sep 30, 2026, 2:35 PM ET
• POSSIBLE CONTRIBUTOR
  News: “Moderna, Cerebras, Jabil, HPE, Cal-Maine, Mattel, and More Stocks That Explain Today’s Market”Published around the move. Timing only, not a confirmed cause. · Sep 30, 2026, 1:30 PM ET
• POSSIBLE CONTRIBUTOR
  News: “Boeing’s $20B-Plus Navy Fighter Win Gets Street’s Attention — What BA Investors Need To Know”Published around the move. Timing only, not a confirmed cause. · Sep 30, 2026, 1:06 PM ET
• CALCULATED
  After the 13 most similar NOC days since Oct 13, 2021, the stock was higher 5 days later 7 of 13 timesHistory, not a forecast. · How: same-company days with a move of similar size and direction