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MRNA +11.5%: an unusually large move for this stock. Moderna, Inc. moved 10.0 points more than its sector, on 1.2× its usual volume.

2026-10-09 · MRNA

MRNA +11.5%: an unusually large move for this stock

Moderna, Inc. moved 10.0 points more than its sector, on 1.2× its usual volume.

The story in plain words

Friday, October 9, 2026. MRNA +11.5%: an unusually large move for this stock. Moderna, Inc. moved 10.0 points more than its sector, on 1.2× its usual volume.

What the data shows for Moderna (MRNA): MRNA +11.5% today. Its sector fund (XLV) +1.5% today. S&P 500 (SPY) +0.5% today.

Worked out from that data: 10.0 points more than its sector. Volume 1.2× its 20-day average. Bigger than 96% of its daily moves over the past 250 trading days.

Possible contributors. These line up in time with the move; they are not confirmed causes: News: “Discover which S&P500 stocks are making waves on Friday.” (Published around the move. Timing only, not a confirmed cause). News: “Moderna Climbs 5% on NASDAQ 100 Entry; Pfizer Inches Higher, BioNTech Ticks Up” (Published around the move. Timing only, not a confirmed cause).

About the company: Moderna trades as MRNA and is part of the S&P 500, in the Health Care sector (Biotechnology), headquartered in Cambridge, Massachusetts, founded in 2010.

This is one of CookieStocks’ daily stock stories about unusually large one-day price moves in S&P 500 stocks, measured against each stock’s own history, its sector and its usual volume. Stories are found automatically each trading day from market data and SEC filings, and every claim is labelled as observed, calculated or a possible contributor. Statistics only, not investment advice.

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 +11.5% todayOct 9, 2026, 1:35 PM ET
  • OBSERVED
    Its sector fund (XLV) +1.5% todayOct 9, 2026, 1:35 PM ET
  • CALCULATED
    10.0 points more than its sectorHow: stock return − sector fund return · Oct 9, 2026, 1:35 PM ET
  • OBSERVED
    S&P 500 (SPY) +0.5% todayOct 9, 2026, 1:35 PM ET
  • CALCULATED
    Volume 1.2× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Oct 9, 2026, 1:35 PM ET
  • CALCULATED
    Bigger than 96% of its daily moves over the past 250 trading daysHow: share of past daily moves smaller in size · Oct 9, 2026, 1:35 PM ET
  • POSSIBLE CONTRIBUTOR
    News: “Discover which S&P500 stocks are making waves on Friday.”Published around the move. Timing only, not a confirmed cause. · Oct 9, 2026, 12:35 PM ET
  • POSSIBLE CONTRIBUTOR
    News: “Moderna Climbs 5% on NASDAQ 100 Entry; Pfizer Inches Higher, BioNTech Ticks Up”Published around the move. Timing only, not a confirmed cause. · Oct 9, 2026, 11:48 AM ET

Moderna (MRNA) financials and filings →

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Statistics only, not investment advice. Past moves don’t predict future ones. Data as of Oct 9, 2026, 1:35 PM ET.