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MRNA
NASDAQ Life Sciences

Moderna Plunges 25% After Record Surge, Worst Day in History

Tom Rudovsky · Reported by Benzinga
More coverage: Biotech Stocks · Healthcare
Sentiment info
Negative
Importance info
7
Price
$135.04
Mkt Cap
$53.913B
52W Low
$22.28
52W High
$176.66
52W Position info
506% above low
Off High info
24% below high
Rel. Volume info
7.2× avg
Market data snapshot near publication time

MRNA has more than doubled off its 52-week low of $22.28 on elevated volume (7.2× avg).

Summary

Moderna is down as much as 25.69% on Thursday, on track for its worst single-day drop ever, after Wednesday's 177% surge on positive Phase 3 data for its personalized cancer vaccine intismeran autogene with Merck's Keytruda. The reversal is driven by unwinding of a massive short squeeze—short interest was about 12.5% of float, making it one of the most shorted names. This follows the FDA approval of mFLUSIVA flu vaccine on August 6 and the Q2 loss reported July 31. The stock is giving back a large portion of the prior day's gains as short sellers cover and profit-taking sets in. Watch whether the decline stabilizes near the $135 level or continues toward pre-announcement levels.

At the time of this announcement, MRNA was trading at $135.04 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $53.9B. The 52-week trading range was $22.28 to $176.66. This news item was assessed with negative market sentiment and an importance score of 7 out of 10. Source: Benzinga.


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MRNA - Latest Insights

MRNA
Aug 20, 2026, 11:51 AM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $139.73
Real-time Price: $135.46 info
Change: -$4.27 (-3%) info
Market Cap: $54.08B info
MRNA
Aug 19, 2026, 4:47 PM EDT
Source: Dow Jones Newswires
Importance Score:
9
Price at Filing: $181.57
Real-time Price: $135.46 info
Change: -$46.11 (-25%) info
Market Cap: $54.08B info
MRNA
Aug 19, 2026, 11:06 AM EDT
Source: Benzinga
Importance Score:
9
Price at Filing: $144.93
Real-time Price: $135.46 info
Change: -$9.47 (-7%) info
Market Cap: $54.08B info
MRNA
Aug 19, 2026, 6:45 AM EDT
Source: Dow Jones Newswires
Importance Score:
9
Price at Filing: $63.01
Real-time Price: $135.46 info
Change: +$72.45 (+115%) info
Market Cap: $54.08B info
MRNA
Aug 10, 2026, 7:37 AM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $60.60
Real-time Price: $135.46 info
Change: +$74.86 (+124%) info
Market Cap: $54.08B info