MRNA −6.3%: a notable move

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
  MRNA −6.3% todaySep 30, 2026, 1:35 PM ET
• OBSERVED
  Its sector fund (XLV) −0.4% todaySep 30, 2026, 1:35 PM ET
• CALCULATED
  5.8 points less than its sectorHow: stock return − sector fund return · Sep 30, 2026, 1:35 PM ET
• OBSERVED
  S&P 500 (SPY) +0.3% todaySep 30, 2026, 1:35 PM ET
• CALCULATED
  Volume 0.9× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Sep 30, 2026, 1:35 PM ET
• CALCULATED
  Bigger than 84% of its daily moves over the past 250 trading daysHow: share of past daily moves smaller in size · Sep 30, 2026, 1:35 PM ET
• POSSIBLE CONTRIBUTOR
  News: “Uncover the latest developments among S&P500 stocks in today's session.”Published around the move. Timing only, not a confirmed cause. · Sep 30, 2026, 12:35 PM ET
• POSSIBLE CONTRIBUTOR
  News: “Wednesday's session: gap up and gap down stock in the S&P500 index”Published around the move. Timing only, not a confirmed cause. · Sep 30, 2026, 10:35 AM ET
• POSSIBLE CONTRIBUTOR
  8-K filed: Executive or director change, Regulation FD disclosureFiled around the move. Timing only. · Source: SEC EDGAR · Sep 30, 2026, 4:00 PM ET