Quanta Services (PWR) Has Rallied in 9 of 10 Fall Windows, Averaging 9.98% Gains

What is the seasonal pattern for Quanta Services (PWR)?

Quanta Services has risen in 9 of 10 years during this Oct 10 to Nov 28 window, with an average gain of 9.98% in winning years.

How has Quanta Services (PWR) traded in the Oct 10 to Nov 28 window?

Quanta Services has closed higher in 9 of the past 10 years between Oct 10 and Nov 28, with winning years averaging a 9.98% gain and stacking to a 132% cumulative return over the decade. Shares finished Friday at 618.73, down 1.3% on the day and about 21.5% below the 52-week high near 788.51, leaving room above if the usual fall pattern shows up again.

Year-by-year ranges show how far PWR has tended to run in both directions inside this fall window.

Across the 10-year lookback, the long trade direction has clearly dominated this Quanta Services trading window. Percent Profitable is 90%, with 9 winners and just 1 loser, and even when the lone down year in 2017 is included, the all-years average outcome still clocks in at a 9% gain. The typical winning year has delivered a 9.98% rise from the Oct 10 close to the Nov 28 close, while the average loss in the single negative year was a modest -0.8%, which helps explain the strong Sharpe ratio of 1.86.

The per-year table shows how those gains have tended to arrive. Strong years such as 2016, 2020, 2022, 2024 and 2025 all posted double-digit net returns, with maximum favorable moves inside the window often in the 12% to 17% range. Even in softer years like 2023, when the net gain was just 2.09%, the stock still saw a 5.44% best point-to-peak rally before giving some of it back by the close.

On the downside, intraperiod drawdowns have been manageable in most years but not trivial. The worst adverse move in the sample was a -13.45% slide in 2023 before the stock recovered to finish slightly higher, and several other years saw temporary dips of roughly -4% to -5%. That MAE profile means the window has historically rewarded patience in long setups, but it has also punished traders who could not sit through mid-window volatility.

The cumulative chart compounds each 50-day outcome year after year and reaches roughly 132% over the decade, which is a striking result for a slice of the calendar that covers less than two months. Add it up: nine positive iterations and one small loss have turned this fall stretch into one of the more reliable bullish pockets in PWR’s historical seasonality.

History does not guarantee future results; adverse excursions (MAE) can be large even in winning windows.

Why does Quanta Services (PWR) follow this seasonal pattern?

This October-to-November strength may reflect how Quanta Services lines up with the infrastructure and utility spending calendar, as project awards and year-end construction activity often ramp into the fourth quarter. Analysts have also pointed to institutional portfolio repositioning in industrials and energy-transition themes late in the year, which can funnel flows into names like PWR as managers lock in exposure before fiscal year-end.^[1] The pattern likely blends those sector rotation dynamics with the company’s own tendency to report and guide around this part of the calendar, even if exact earnings dates vary year to year.

What is driving Quanta Services (PWR) today?

Quanta Services closed Friday at 618.73, down 1.3% on the session, after trading between 615.47 and 630.56, and sits about 21.5% below its 52-week high near 788.51 while still well above the 52-week low around 369.64. The stock has cooled from a powerful run that saw it up roughly 88% year over year by mid-June 2026, a move that left shares about 15% below recent highs at that time as they digested gains and found technical support.^[2] In early September, institutional filings showed a mixed picture, with Integrated Wealth Concepts LLC increasing its holdings in PWR, while Amundi disclosed the sale of 29,379 shares and Groupe la Francaise reported a $65.38 million stake, underscoring that large investors remain active on both sides of the tape.^[3][4][5]

On the fundamental side, Quanta Services continues to sit at the crossroads of several powerful themes, including grid modernization, renewable energy build-out and large-scale infrastructure upgrades, which have helped push the stock into the upper tier of industrials performance over the past year.^[2][3] Brokerages tracked by MarketBeat maintain a “Moderate Buy” consensus rating on the shares, reflecting a constructive but not euphoric stance after the big run, and recent coverage has framed PWR as a core way to play long-duration infrastructure spending rather than a short-term trading vehicle.^[1][6] Insider activity has been quiet, with no reported insider buys or sells over the past three months, which removes one potential overhang but also means there is no fresh insider vote of confidence at current levels.^[1]

The chart below situates the latest pullback against the past year’s rally and overlays the median 10-year seasonal path into the upcoming window.

What should traders watch as the Oct 10 window approaches?

With Quanta Services trading well below its 52-week high yet still far above last year’s levels, the setup heading into Oct 10 is a classic “strong stock, cooling off” backdrop. Historically, this 50-day window has favored long exposure, with 9 winners against 1 loser and average gains near 10% in the up years, but the path has rarely been smooth. Traders watching the PWR seasonal trend will be focused on whether the stock can hold above recent support zones carved out during the late-summer pullback while the calendar flips into what has often been a favorable stretch.

Key items to monitor include any new contract wins or infrastructure policy headlines that could refresh the growth story, as well as updates from industrials peers that might shift sentiment toward the broader sector.^[2][3] Price-wise, the band between the recent lows around the mid-600s and the 50-day moving average near 649 on many charting platforms will matter as a gauge of whether buyers are stepping back in after the pullback. A firming tape into early October that respects those levels would rhyme with the historical pattern, while a decisive break lower with expanding volume would mark a clear departure from the usual fall behavior.

Institutional positioning is another lever to watch. The early-September filings that showed both incremental buying and selective selling suggest active portfolio rotation rather than a one-way exit, and additional disclosures or 13F updates could reveal whether long-only managers are using weakness to add or trimming into strength.^[3][4][5] If the stock enters the Oct 10 to Nov 28 window with stabilizing flows and constructive sector tone, the historical seasonality argues that PWR has often used this part of the calendar to extend prior uptrends rather than reverse them, even as intraperiod drawdowns have occasionally tested conviction.