TOP TIERMARKET NEWSWIRE
Movers explained · November 5, 2026

Why Is QUANTA SVCS INC (PWR) Stock Moving Today?

By the Top Tier Newswire AI Desk · August 21, 2026 at 12:20 PM ET · reviewed against 0 wire stories

QUANTA SVCS INC (PWR) is drawing unusual attention today.

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PWR stock fell 4.00% to $635.99 in the session, underperforming against its recent trend and competitors. The decline followed a sharp intraday reversal from a modest opening gap up. The stock opened at $672.00 but declined steadily throughout the day, reaching a low of $635.61. The move came as Quanta Services Inc. lagged behind its peers, despite a recent analyst upgrade and strong year-to-date performance.

What Happened

The stock’s decline marked a reversal from the prior session’s close of $662.47. Quanta Services opened with a 1.4% gap up but failed to sustain the momentum, falling below its intraday high of $673.51 shortly after 7:25 AM ET. By midday, the stock had dropped to its session low of $635.61. The sell-off occurred despite a recent Keybanc upgrade to Overweight and a $807 price target. The stock’s underperformance was highlighted in a MarketWatch report that noted its lag relative to competitors. Meanwhile, broader market sentiment was mixed, with some headlines emphasizing the strong performance of certain S&P 500 stocks over the past five years.

What The Data Shows

The stock traded on 0.4 million shares, which is 0.3 times the 3-month daily average. The session’s volume and price action suggest a shift in sentiment, despite Quanta’s fundamentals showing strong revenue growth of 26.3% in the trailing twelve months. The stock currently trades at a P/E of 75.8 and a market cap of $101.8 billion. On the 52-week tape, the stock printed 35 fresh 52-week lows on August 21, indicating broader pressure on the name. Congressional transactions in the last 90 days included six buys and two sells, with the most recent filing on July 21.

What To Watch

The stock has no upcoming earnings report noted in the provided data. Investors may monitor coverage breadth for additional analyst commentary or corporate developments that could influence the stock’s direction.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

PWR by the numbers

7 sessions: +2.93%Mkt cap: $101.8BP/E: 75.852w: $363.01 to $788.75
PWR · Aug 21 session (5-min) · -3.49% vs prior close · updated 8:52 PM ET
$634$655$676prev close $662.47$639.357:20 AM10:22 AM1:25 PM4:27 PM7:30 PM7:20 AM · $672.007:25 AM · $673.518:50 AM · $673.419:00 AM · $670.009:10 AM · $668.549:20 AM · $669.009:25 AM · $667.479:30 AM · $662.159:35 AM · $660.669:40 AM · $657.809:45 AM · $656.299:50 AM · $655.459:55 AM · $655.9210:00 AM · $652.1710:05 AM · $653.2910:10 AM · $649.9610:15 AM · $650.9310:20 AM · $652.8810:25 AM · $654.1910:30 AM · $653.4910:35 AM · $650.2510:40 AM · $645.7510:45 AM · $647.0210:50 AM · $643.0810:55 AM · $640.3911:00 AM · $639.7111:05 AM · $641.0811:10 AM · $639.0111:15 AM · $639.0111:20 AM · $639.6011:25 AM · $638.8711:30 AM · $639.6811:35 AM · $641.6011:40 AM · $642.5611:45 AM · $641.1811:50 AM · $641.4711:55 AM · $639.4712:00 PM · $640.1812:05 PM · $636.4012:10 PM · $636.7712:15 PM · $635.9912:20 PM · $636.6212:25 PM · $638.4312:30 PM · $638.0912:35 PM · $639.3612:40 PM · $640.6212:45 PM · $641.5012:50 PM · $640.8712:55 PM · $640.231:00 PM · $639.581:05 PM · $639.531:10 PM · $640.291:15 PM · $642.351:20 PM · $641.131:25 PM · $640.951:30 PM · $641.131:35 PM · $641.241:40 PM · $641.121:45 PM · $642.111:50 PM · $642.451:55 PM · $644.152:00 PM · $644.342:05 PM · $645.032:10 PM · $646.022:15 PM · $646.872:20 PM · $647.802:25 PM · $649.432:30 PM · $649.802:35 PM · $650.212:40 PM · $649.382:45 PM · $649.582:50 PM · $648.092:55 PM · $647.863:00 PM · $647.393:05 PM · $646.623:10 PM · $645.163:15 PM · $645.593:20 PM · $645.813:25 PM · $644.023:30 PM · $645.203:35 PM · $643.223:40 PM · $643.423:45 PM · $643.733:50 PM · $640.923:55 PM · $639.334:00 PM · $639.344:10 PM · $639.344:15 PM · $639.344:35 PM · $639.344:55 PM · $639.515:30 PM · $641.015:50 PM · $646.116:30 PM · $641.286:40 PM · $640.007:00 PM · $641.137:30 PM · $639.35

The headlines behind the move

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More on PWR: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier PWR move explainers: 2026-08-21