McGrath RentCorp trading volume jumps 23.5x its 30-day average
The pick
McGrath RentCorp (MGRC) had the biggest jump in trading volume compared with its usual level on November 3, 2026. Volume was 23.5x its 30-day average, and the stock rose 2.69%.
What happened
We couldn't find anything in the company's own filings that explains the move. The search covered SEC filings from 5 days before through 1 day after the date.
What news reports said
Yahoo Finance reported that McGrath RentCorp stock was bumping higher on November 2. It said the company had been tapped to be a component of a prominent small-cap index [Yahoo Finance].
The Motley Fool ran an article with the same headline and the same description of the index news. [The Motley Fool]
Both articles were published the day before the date of this volume spike.
The numbers
Previous close: $129.44
Close: $132.92
Change: +2.69%
Volume: 4,712,637
30-day average volume: 200,628
Volume multiple: 23.5x
Behind the move: news reports
MGRC's most unusual trading day in 2 years
Its sector (Industrials, XLI) moved +0.95% that day
Pro: MGRC has had 8+ earlier days at 5x+ normal volume since 2016. Pro members see what it did over the next 5 and 20 trading days after each one. See Pro
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