JBL −10.3%: 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
  JBL −10.3% todaySep 30, 2026, 2:35 PM ET
• OBSERVED
  Its sector fund (XLI) −0.8% todaySep 30, 2026, 2:35 PM ET
• CALCULATED
  9.5 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 2.7× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Sep 30, 2026, 2:35 PM ET
• CALCULATED
  Its biggest daily move in 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: “Let's take a look at the S&P500 stocks that are experiencing unusual volume in today's session.”Published around the move. Timing only, not a confirmed cause. · Sep 30, 2026, 1:05 PM ET
• POSSIBLE CONTRIBUTOR
  8-K filed: Earnings resultsFiled around the move. Timing only. · Source: SEC EDGAR · Sep 30, 2026, 4:00 PM ET
• CALCULATED
  After the 11 most similar JBL days since Oct 13, 2021, the stock was higher 5 days later 6 of 11 timesHistory, not a forecast. · How: same-company days with a move of similar size and direction