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Biggest moves on record

Every trading day we hold, as a bar. The five biggest are marked.

  1. 1+17.3%30 Jul 2026Max
  2. 2+15.8%30 Apr 2026Max
  3. 3−8.1%22 Oct 2026Low
  4. 4+6.7%19 Feb 2026Max
  5. 5+6.4%6 Feb 2026Max

Every day, by size of move

265 trading days, 2025–2026. One square is one day.

  • Max51.9%
  • Very High51.9%
  • High114.2%
  • Moderate103.8%
  • Low7829.4%
  • Very Low15658.9%

Biggest moves on record

Every week we hold, as a bar. The five biggest are marked.

  1. 1+18.8%Week of27 Apr 2026Moderate
  2. 2−14.1%Week of27 Jan 2025High
  3. 3−13.5%Week of19 Oct 2026Very High
  4. 4+13.0%Week of7 Mar 2022Very High
  5. 5+12.6%Week of7 Apr 2025Low

Every week, by size of move

302 weeks, 2021–2026. One square is one week.

  • Max20.7%
  • Very High41.3%
  • High62.0%
  • Moderate72.3%
  • Low8126.8%
  • Very Low20266.9%

Biggest moves on record

Every month we hold, as a bar. The five biggest are marked.

  1. 1+32.6%Apr 2026Low
  2. 2+28.2%Aug 2020Moderate
  3. 3−26.8%Oct 2008Max
  4. 4+24.8%Oct 2007Low
  5. 5+24.5%Feb 2024Low

Every month, by size of move

251 months, 2005–2026. One square is one month.

  • Max31.2%
  • Very High20.8%
  • High20.8%
  • Moderate93.6%
  • Low6525.9%
  • Very Low17067.7%

Monthly performance

Over the past 22 years, PWR rose most often in May (16 of 22) and fell most often in January (12 of 22).

How it reacted to its last results

ReportedResultOn the day
29 Oct 2026 Beat$6.06 vs $5.03 expected +4.7%
30 Jul 2026 Beat$4.24 vs $3.31 expected +17.3%
30 Apr 2026 Beat$2.68 vs $2.03 expected +15.8%
19 Feb 2026 Beat$3.16 vs $3.02 expected +6.7%

Beat or missed means profit per share came in above or below what experts expected. The price move is for the first trading day the results could move.

Compared with its neighbours

On a normal day, PWR moves about 1.5% up or down. That is livelier than 7 in 10 shares we follow.

Industry · Industrials

GEGE AerospaceCATCaterpillar Inc.RTXRTX Corp.HONHoneywell InternationalUNPUnion Pacific Corp.ETNEaton Corp.BABoeing Co.ADPAutomatic Data Processing

and 55 more

Theme · Power for AI

CEGConstellation EnergyVSTVistra Corp.GEVGE VernovaBEBloom Energy Corp.NEENextEra EnergyOKLOOklo Inc.SMRNuScale PowerVRTVertiv Holdings

In the news

Recent headlines about Quanta Services Inc., from the outlets that wrote them.

  1. 01Yahoo Finance39 minutes agoQuanta Services (PWR) Stock Cools As Q3 Earnings Reset The Debate
  2. 02Simply Wall St13 hours agoQuanta Services (PWR) Stock Slips After Q3 Results Lift Guidance
  3. 03Yahoo Finance15 hours agoWhat Quanta Services Buyers Were Betting On
  4. 04Yahoo Finance17 hours agoQuanta Services Q3 Earnings Call Highlights
  5. 05Moomoo19 hours agoQuanta Services Price Target Raised to $882.00/Share From $871.00 by Citigroup
  6. 06MarketWatch21 hours agoQuanta Services Inc. stock underperforms Friday when compared to competitors