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GNRC −7.0%: an unusually large move for this stock. GENERAC HOLDINGS INC. moved 5.7 points less than its sector, on 0.2× its usual volume.

2026-10-14 · GNRC

GNRC −7.0%: an unusually large move for this stock

GENERAC HOLDINGS INC. moved 5.7 points less than its sector, on 0.2× its usual volume.

The story in plain words

Wednesday, October 14, 2026. GNRC −7.0%: an unusually large move for this stock. GENERAC HOLDINGS INC. moved 5.7 points less than its sector, on 0.2× its usual volume.

What the data shows for Generac (GNRC): GNRC −7.0% today. Its sector fund (XLI) −1.4% today. S&P 500 (SPY) −0.9% today.

Worked out from that data: 5.7 points less than its sector. Volume 0.2× its 20-day average. Bigger than 95% 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: “Generac Announces Third Quarter 2026 Earnings Release Date and Conference Call” (Published around the move. Timing only, not a confirmed cause). News: “Generac Entered a Massive Deal With Amazon. Is It Time to Buy the Stock?” (Published around the move. Timing only, not a confirmed cause).

About the company: Generac trades as GNRC and is part of the S&P 500, in the Industrials sector (Heavy Electrical Equipment), headquartered in Waukesha, Wisconsin, founded in 1959.

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
    GNRC −7.0% todayOct 14, 2026, 12:05 PM ET
  • OBSERVED
    Its sector fund (XLI) −1.4% todayOct 14, 2026, 12:05 PM ET
  • CALCULATED
    5.7 points less than its sectorHow: stock return − sector fund return · Oct 14, 2026, 12:05 PM ET
  • OBSERVED
    S&P 500 (SPY) −0.9% todayOct 14, 2026, 12:05 PM ET
  • CALCULATED
    Volume 0.2× its 20-day averageHow: today’s volume ÷ average of the last 20 days · Oct 14, 2026, 12:05 PM ET
  • CALCULATED
    Bigger than 95% of its daily moves over the past 250 trading daysHow: share of past daily moves smaller in size · Oct 14, 2026, 12:05 PM ET
  • POSSIBLE CONTRIBUTOR
    News: “Generac Announces Third Quarter 2026 Earnings Release Date and Conference Call”Published around the move. Timing only, not a confirmed cause. · Oct 14, 2026, 6:00 AM ET
  • POSSIBLE CONTRIBUTOR
    News: “Generac Entered a Massive Deal With Amazon. Is It Time to Buy the Stock?”Published around the move. Timing only, not a confirmed cause. · Oct 13, 2026, 5:19 AM ET

Generac (GNRC) financials and filings →

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Statistics only, not investment advice. Past moves don’t predict future ones. Data as of Oct 14, 2026, 12:05 PM ET.