Quanta Services stock gains as grid backlog and AI demand support outlook

Published on 09/17/2026 at 14:25 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Quanta Services stock closed at USD 625.95 on September 16, 2026, up 2 percent as investors bet on long-term electricity and data center demand. Analyst estimates point to double-digit revenue growth for 2026 and 2027 for the infrastructure specialist.

Techniker klettert Strommast beim Hochspannungsleitungsbau im Sonnenuntergang — Quanta Services Inc. (ISIN US74762E1029) baut Hochspannungsleitungen, Techniker klettert Mast bei Sonnenuntergang mit Kranwagen, Illustration mit AI erstellt.

Quanta Services stock (ISIN US74762E1029) closed at USD 625.95 on the New York Stock Exchange on September 16, 2026, up about 2 percent from the prior session as investors positioned for sustained electricity and data center demand.

Stock advances alongside infrastructure demand narrative

As 24/7 Wall St reported on September 16, 2026, Quanta Services stock rose to USD 625.95, gaining roughly 2 percent intraday as investors reacted to broader commentary about rising electricity demand and grid investment.

According to Zacks in an industry piece published on September 17, 2026, Quanta Services reported a record total backlog of USD 53.4 billion at the end of the second quarter of 2026, up 49 percent from the prior year, underlining how power and infrastructure projects are stacking up.

Backlog and analyst estimates highlight growth expectations

The second quarter of 2026 backlog figure of USD 53.4 billion, which Zacks notes is 49 percent higher than a year earlier, gives investors a quantified view of how Quanta Services pipeline has expanded over the past year and supports expectations of continued top line growth.

Consensus estimates compiled by Yahoo Finance as of September 17, 2026, point to revenue of USD 39.58 billion for the current fiscal year 2026 and USD 45.59 billion for 2027, implying expected growth of about 38.98 percent in 2026 versus the prior year and a further 15.17 percent in 2027.

In the same overview, the average analyst sales estimate for the current quarter ending September 2026 stands at USD 10.87 billion compared with year ago quarterly sales of USD 7.63 billion, indicating anticipated quarterly growth of roughly 42.42 percent, while the next quarter ending December 2026 is projected at USD 11.23 billion versus USD 7.84 billion a year ago, a 43.24 percent increase.

On the earnings side, analysts surveyed on Yahoo Finance expect Quanta Services to deliver earnings per share of USD 16.73 for the current year 2026 and USD 19.72 for 2027, with current quarter EPS estimates centered around USD 3.26 and next quarter estimates near USD 3.02, reflecting expectations of consistently high profitability alongside the revenue expansion.

Recent share performance and valuation context

Price data from Yahoo Finance show Quanta Services shares closing at USD 619.28 on September 16, 2026, at 4:00 p.m. Eastern Time, before moving higher in pre-market trading to USD 629.03 at 7:42 a.m. Eastern Time on September 17, 2026, which places the stock just below the USD 627 level referenced as roughly a 49 percent gain in an AI and data center themed article on TipRanks on September 16, 2026.

That TipRanks piece noted that PWR stock had climbed by roughly 49 percent to around USD 627 over the preceding period, indicating that Quanta Services shares have already delivered substantial returns in the AI and data center infrastructure narrative before the latest advance to about USD 625.95 highlighted by 24/7 Wall St.

In its industry comparison on September 17, 2026, Zacks pointed out that MYR Group shares gained 54.6 percent over the past year while the industry benchmark fell 74.4 percent, and while Quanta Services is cited there primarily for its USD 53.4 billion backlog, the juxtaposition suggests that leading grid and transmission contractors such as Quanta fit into a higher growth, higher valuation segment of the utilities infrastructure space.

Risks and what investors will watch next

For investors, one risk highlighted indirectly in the Zacks analysis is that fast growing backlogs and top line expansion in infrastructure businesses can be accompanied by rising costs, as seen in other peers, so a key question for Quanta Services will be how efficiently it converts its USD 53.4 billion second quarter 2026 backlog into revenue and earnings without eroding margins.

Analyst estimates on Yahoo Finance show that despite the strong revenue growth profile, Quanta Services is expected to keep earnings per share rising from USD 16.73 in 2026 to USD 19.72 in 2027, which suggests that the market currently assumes the company can manage cost pressures and maintain profitability as large scale grid modernization and data center related projects move through its order book.

Against this backdrop, the recent move of Quanta Services stock to USD 625.95 on September 16, 2026, roughly 49 percent above earlier levels cited in the TipRanks AI trade article, underscores how much optimism is already reflected in the share price, making upcoming quarterly figures and backlog updates particularly important checkpoints for shareholders.

Quanta Services stock price level and trading venue

Quanta Services stock most recently closed around USD 625.95 on the New York Stock Exchange on September 16, 2026, with other price snapshots showing USD 619.28 at the regular-session close and USD 629.03 in pre-market trading on September 17, 2026, all in United States dollars.