Comfort Systems USA Inc

Comfort Systems USA acquired Utah-based R.C. Hunt Electric on May 1, 2026, for a preliminary purchase price of $206 million, a deal management expects to contribute roughly $250 million of annualized revenues. Hunt provides electrical design and construction services across industrial, technology, commercial and infrastructure markets in the Western United States, and added about $217 million to quarter-end backlog, strengthening Comfort Systems' record $14.06 billion backlog. The strategic fit looks attractive given Comfort Systems' expanding electrical footprint, with second-quarter electrical revenues surging 81% year over year and electrical gross margin improving to 26.4% from 25.3%, while technology accounted for roughly 58% of first-half revenues on robust data-center activity. Management said Hunt is already pursuing projects jointly with Comfort Systems' mechanical contractors in Utah, and the company ended the quarter with more than $1.8 billion of net cash despite acquisitions and heavy capital spending. The acquisition strengthens Comfort Systems against rivals EMCOR Group, which reported record second-quarter 2026 revenues of $5.15 billion and remaining performance obligations of $17.14 billion, and Quanta Services, which generated second-quarter revenues of $9.56 billion and ended the period with $53.4 billion of backlog.

Comfort Systems USA now carries a Zacks Rank #1 (Strong Buy) after its Zacks Consensus Estimate for the current year rose 0.9% over the past month to $46.4. The rating reflects growing analyst optimism on the company's earnings prospects, with strong agreement among analysts revising EPS estimates higher. Comfort Systems also holds an average brokerage recommendation of 1.31 on a scale of 1 to 5, based on recommendations from 13 brokerage firms, of which 11 are Strong Buy, representing 84.6% of all recommendations. Zacks notes that the ABR and its own Zacks Rank are distinct measures, since the ABR is calculated solely from brokerage recommendations while the Zacks Rank is a quantitative model built on earnings estimate revisions. The firm cautions that brokerage analysts carry a strong positive bias, assigning five Strong Buy recommendations for every Strong Sell, and says the Buy-equivalent ABR may serve as a useful guide for investors.

Comfort Systems USA is expanding its Modular business to capture sustained demand from customers building large-scale technology infrastructure, combining higher production capacity with customer commitments to limit the risk of speculative investment. Modular accounted for 17% of revenues in the first six months of 2026, with production capacity surpassing 3.5 million square feet and expected to exceed 4 million square feet by year-end, on the way to about 5 million square feet by late summer 2027. Modular generated $510 million of bookings in the second quarter, adding more than $500 million to backlog after accounting for the strong pace of revenue recognized, and management said customers continue to seek as much Modular capacity as Comfort Systems can produce. The company expects capital expenditures to equal about 5% of 2026 revenues, and management indicated that Modular investments have achieved full paybacks within one to two years, with customer volume commitments including from two hyperscalers helping reduce the risk of adding capacity. Comfort Systems competes with EMCOR Group and Quanta Services across mechanical and electrical construction, mission-critical projects and large-scale infrastructure, and its shares have surged 70.4% year to date, trading at a forward 12-month price-to-earnings ratio of 29.09, while earnings estimates for 2026 and 2027 have moved upward in the past 30 days to $46.40 and $58.31 per share, implying year-over-year growth of 60.7% and 25.7%.

Three US-listed companies that keep AI data centers running are reporting surging revenue and backlog as hyperscaler demand accelerates. Comfort Systems USA, which installs HVAC and electrical systems inside data centers, saw Q2 FY2026 revenue rise 50.3% to $3.27 billion and backlog nearly double to a record $14.06 billion. Vertiv Holdings, which makes power and cooling gear for AI servers, reported Q2 net sales up 24% to $3.274 billion and raised its full-year 2026 EPS guidance by 60% to $6.70 at the midpoint. Sterling Infrastructure, which does site development and electrical work for data-center campuses, delivered 90.1% revenue growth to $1.17 billion and a 116% backlog surge to $4.33 billion, with management raising FY2026 guidance to revenue of $4.00-$4.15 billion. All three companies cited intensifying demand from hyperscalers, with Sterling's CEO noting projects are now scoped to last up to 12 years.

Comfort Systems USA, Inc. reported that its Electrical segment revenues surged 81.2% year over year to $969 million in the second quarter of 2026, outpacing the 40.2% growth in Mechanical revenues to $2.30 billion. The Electrical segment's share of total company revenues rose to 29.7% from 24.6% a year earlier, driven by strong data-center demand and acquisitions. Of the $434.3 million increase in Electrical revenues, $301.7 million came from same-store operations, with the Texas electrical business contributing $186.6 million, while acquisitions added $132.6 million. Mechanical remains the larger business, accounting for 70.3% of revenues, with its backlog reaching $10.06 billion and Electrical backlog at $4 billion, both up roughly 73% year over year. Comfort Systems' stock has surged 73.1% year to date, and earnings estimates for 2026 and 2027 have been raised to $45.86 and $58.33 per share, respectively.

Louis Navellier is urging investors to ignore headlines claiming nearly half of planned 2026 data centers have been delayed or canceled, arguing the boom continues despite New York's one-year statewide moratorium on large data centers. He notes the moratorium restricts hyperscale facilities consuming over 50 megawatts and was enacted to refine regulations, with construction likely resuming once standards are set. Navellier cites Stanford University's AI Index Report showing 5,427 U.S. data centers at the end of 2025 and plans to add 3,969 more, with 802 under construction, while data center construction rose 7% in June to $68.3 billion, a 46% year-over-year increase. He highlights EMCOR Group, Comfort Systems USA, and Quanta Services as strategic stocks, noting EMCOR raised full-year 2026 revenue guidance to between $20 billion and $20.5 billion and earnings per share to between $32 and $33.25, Comfort Systems' backlog jumped to $14.06 billion, and Quanta Services reached a record backlog of $53.4 billion with fiscal 2026 revenue expected between $39.3 billion and $39.7 billion.

Bernstein analysts project U.S. annual data center construction could rise from 12 gigawatts in 2026 to 35 GW by 2030, but shortages of specialised mechanical, electrical and plumbing workers will set the industry's speed limit. The projection assumes recruitment across the three trades remains near peak rates recorded during the past three years, allowing annual construction to increase by about 6 GW each year, or roughly 30% compound annual growth. The estimated 35 GW ceiling would support market consensus of 25 GW to 35 GW in annual capacity additions by 2030, yet fall short of the 40 GW Bernstein estimates is needed to justify planned manufacturing capacity for mid-scale power generators. This creates a potential overbuild risk for power-equipment suppliers, with Caterpillar and Cummins identified as the most exposed. Bernstein said modular construction could help the industry move past this labour ceiling by transferring more work from building sites to factories, potentially benefiting vertically integrated manufacturers and contractors such as Eaton, Schneider Electric, Vertiv, Quanta Services, Comfort Systems USA and EMCOR.

Comfort Systems USA has returned more than 2,000% over the past five years, easily beating Nvidia's return of just under 1,000%. The HVAC and mechanical contractor benefited from surging demand for data center cooling and power infrastructure, with over half of its revenue now coming from tech and data center projects. In the second quarter, Comfort Systems reported revenue of $3.26 billion, up 50.3% year over year, and earnings per share of $12.53, up 91.9%, while trimming total debt to $54.1 million from $145 million a year earlier. The company now has a market capitalization of $59 billion and a trailing price-to-earnings ratio of nearly 50, higher than competitors Emcor Group, IES Holdings, and Sterling Infrastructure. Analysts note that its physical scaling limits and high valuation make it unlikely to repeat such outsized gains, though it maintains a backlog of more than $14 billion and has increased its dividend for 14 consecutive years.

Wall Street analysts have raised their earnings estimates for Comfort Systems USA after the company reported record backlog and strong cash generation. The Zacks Consensus Estimate for 2026 earnings has increased to $45.48 per share from $43.08 over the past 30 days, while the 2027 estimate has risen to $57.27 from $52.59, with no downward revisions. The stock has surged 79.4% year to date, easily outperforming the Zacks Building Products - Air Conditioner and Heating industry's 26.2% gain, the Zacks Construction sector's 10.1% advance and the S&P 500's 13.1% rise. Second-quarter revenues jumped 50.3% year over year to $3.27 billion, earnings nearly doubled to $12.53 per share, and backlog climbed to a record $14.06 billion. The Average Brokerage Recommendation stands at 1.33, with 10 of 12 analysts rating the stock a Strong Buy and an average price target of $2,139.88 implying nearly 28% upside.

Zacks Investment Research has identified five growth stocks for investors to buy in August, citing strong earnings and revenue growth prospects tied to artificial intelligence and data center demand. The stocks are Micron Technology, Seagate Technology Holdings, Comfort Systems USA, Vertiv Holdings, and Celestica, each carrying a Zacks Rank of 1 and a Growth Score of A. Micron is expected to see revenue and earnings growth of 91.4% and more than 100% for the year ending August 2027, driven by demand for memory chips used in AI systems. Seagate projects revenue and earnings growth of 52.8% and more than 100% for the year ending June 2027, benefiting from AI workloads that require persistent data storage. Comfort Systems guided for 2026 same-store revenue growth in the mid- to high-30% range, with a backlog of $14.06 billion as of June 30, 2026, up 73.2% year over year, fueled by data center construction. Vertiv expects revenue and earnings growth of 36.6% and 58.1% for the current year, supported by AI infrastructure demand and partnerships with NVIDIA. Celestica anticipates revenue and earnings growth of 63.4% and 78.5% for the current year, driven by AI infrastructure spending and expansion of high-bandwidth networking platforms.

Comfort Systems USA reported a 240-basis-point year-over-year improvement in gross margin to 25.9% in the second quarter of 2026, while operating margin expanded to 17.1% from 13.8%. Adjusted EBITDA margin rose to 18.4%, driven by disciplined project selection, pricing strength, and operational excellence. The company ended the quarter with a record $14.1 billion backlog, up 73% year over year, and expects gross margins to remain within the strong range achieved in recent quarters. Mechanical segment gross margin increased to 25.6% from 22.9%, and Electrical segment margin improved to 26.4% from 25.3%. Shares have surged 90.3% year to date, and the stock carries a Zacks Rank of 1, or Strong Buy.

Comfort Systems USA reported record second-quarter 2026 results with sales of US$3,265.66 million, net income of US$441.6 million, and diluted earnings per share of US$12.53, while its board raised the quarterly dividend to US$0.90 per share payable on August 24, 2026. The company also highlighted a US$14.06 billion backlog, ongoing buybacks, and the Hunt Electric acquisition as part of a multi-pronged strategy to support future earnings and shareholder returns. Despite the strong results, the stock has pulled back 11% from its recent high, and significant insider selling keeps valuation risk in focus. Simply Wall St community fair value estimates range from roughly US$1,910 to US$2,595, reflecting wide disagreement on the stock's upside potential.

Zacks Market Edge podcast host Tracey Ryniec discussed three AI infrastructure stocks that have recently sold off, presenting potential buying opportunities. Sterling Infrastructure shares have fallen 22% over the last month, now trading at a forward P/E of 34, with earnings expected to rise 75.7% this year. Comfort Systems USA has dropped 11% in the past month, trading at a forward P/E of 39, and earnings are projected to jump 49.2% this year. Everus Construction Group declined 15% over the last month, with a forward P/E of 30 and expected earnings growth of 11.1% in 2026. Ryniec noted that these companies are involved in building, powering, and cooling data centers, benefiting from hyperscaler spending of over $1 trillion on AI capabilities this year.

Comfort Systems USA and Vertiv Holdings have each more than doubled in the past year, driven by the artificial intelligence data center build-out. Comfort Systems, a mechanical and HVAC construction firm, reported first-quarter 2026 revenue of about $2.9 billion, up 57% year over year, with net income rising 119% to roughly $370 million and a backlog of $12.4 billion. Vertiv, a provider of power and cooling equipment for data centers, posted a 30% revenue increase to about $2.65 billion and a 137% jump in net income to around $390 million. Comfort Systems trades at a price-to-earnings ratio of about 49, compared to Vertiv's multiple of about 73, and both stocks carry strong buy consensus ratings with price targets implying roughly 45% to 50% upside.

EMCOR Group continues to strengthen its position across high-growth construction end markets, with network and communications revenues surging nearly 50% year over year in its electrical construction segment and 86% in its mechanical construction segment during the first quarter. The company benefits from diversified exposure to AI data centers, healthcare, institutional, manufacturing, and water infrastructure, supported by record remaining performance obligations of $15.62 billion. Competitors Sterling Infrastructure and Comfort Systems USA are also scaling in mission-critical infrastructure, with Sterling's first-quarter E-Infrastructure revenues up 174% and Comfort Systems posting a 56% revenue increase to $2.9 billion. EMCOR shares have gained 25.8% year to date, and the stock carries a Zacks Rank of 1, or Strong Buy.

Comfort Systems USA shares have surged 80.5% year-to-date, far outpacing the broader market and its industry peers. The company reported first-quarter revenue of $2.87 billion, a 56.5% increase from a year earlier, with technology projects contributing 56% of the total. Backlog reached a record $12.45 billion, and earnings per share more than doubled to $10.51. Analysts project 2026 earnings per share of $43.08, a 49.2% jump, and the average price target of $2,115.29 implies nearly 26% upside. However, the stock trades at 35.08 times forward earnings, above its five-year median of 22.46 times, leading Zacks to maintain a Hold rating.

William Blair analysts added Comfort Systems USA to the firm's Analyst Conviction List on July 1, 2026. The company also announced that Craig Sasser will become COO effective July 1, while Trent McKenna remains President and Briston Blair transitions to Chief Strategy & Innovation Officer. Earlier, on June 8, UBS raised its price target on Comfort Systems to $2,125 from $1,992 and maintained a Buy rating, citing robust demand led by data centers and opportunities in semiconductors, healthcare, and education. UBS sees the strong environment persisting through 2027.

Comfort Systems USA is expected to report second-quarter fiscal 2026 earnings per share of $10.38, a 59% increase from $6.53 in the same quarter last year. The company has beaten Wall Street profit estimates in each of the past four quarters. For the full fiscal year ending in December, analysts forecast earnings of $43.39 per share, up 50.2% from $28.88 in fiscal 2025, with further growth to $52.59 expected in fiscal 2027. Shares have surged 269.6% over the past 52 weeks, far outpacing the S&P 500's 20.9% return. Wall Street rates the stock a Strong Buy, with a mean price target of $2,128.62 implying a 7.4% upside.

Comfort Systems USA is gaining analyst attention as a major beneficiary of the growing data center and AI infrastructure build-out across the U.S. Erste Group initiated coverage with a Buy rating on June 5, citing robust demand from the technology sector and projecting sales growth in the mid-to-high 20% range for 2026. UBS raised its price target on the stock from $1,992 to $2,125 on June 8, maintaining a Buy rating and highlighting strong data center demand along with potential in semiconductors, healthcare, and education. The company reported a 51% surge in organic revenue for the first quarter of 2026, with its backlog reaching a record $12.45 billion as of March 31. Consensus estimates call for earnings per share to grow from $35.10 to $43, implying a 49% increase over 2025 levels.

StockStory identifies two cash-heavy stocks with exciting potential and one to ignore. DocuSign, with a net cash position of $630.8 million representing 7.4% of its market cap, is flagged as a sell due to underwhelming annual recurring revenue growth of 8.5% and high competitive spending. Comfort Systems, holding $1.01 billion in net cash or 1.6% of market cap, is viewed bullishly thanks to 53.1% average backlog growth over two years and a 9.5 percentage point increase in free cash flow margin over five years. BioMarin Pharmaceutical, with $782.8 million in net cash equating to 7.3% of market cap, is favored for its 14.5% annual revenue growth over two years and projected 28.4% revenue increase. Comfort Systems trades at $1,857 per share and 45.7 times forward earnings, while BioMarin is at $56.05 per share and 10.2 times forward earnings.

Comfort Systems USA is increasingly seen as potentially using acquisitions to drive its next phase of growth, as demand for data center and advanced technology infrastructure accelerates. In the first quarter of 2026, revenues surged 56% year over year to $2.87 billion, while earnings per share more than doubled to $10.51, and the company reported a record backlog of $12.45 billion. Management remains focused on disciplined capital allocation, investing heavily in modular manufacturing and automation, but strong cash generation and a healthy balance sheet provide flexibility for deals. Shares have climbed 43.8% in the past three months, and the stock carries a Zacks Rank of 1, or Strong Buy, with upwardly revised earnings estimates for 2026 and 2027.

Comfort Systems USA has surged 313.3% over the past 52 weeks, dramatically outperforming the State Street Industrial Select Sector SPDR ETF's 27.7% gain. The Houston-based mechanical and electrical services provider, valued at a market cap of $72.7 billion, has risen 52.3% over the past three months compared to the ETF's 12.5% increase. The stock currently trades marginally below its 52-week high of $2,073.99 recorded on May 14. First-quarter 2026 revenue reached $2.9 billion, surpassing Street estimates, while adjusted earnings per share came in at $10.51, also exceeding forecasts. Wall Street analysts hold a consensus Strong Buy rating with a mean price target of $2,115.28, implying a 2.4% upside from current levels.

Comfort Systems USA and EMCOR Group both reported record first-quarter 2026 results, but Comfort Systems is emerging as the stronger beneficiary of AI-driven infrastructure spending. Comfort Systems' revenue surged 56% year over year to $2.87 billion, earnings more than doubled to $10.51 per share, and its backlog nearly doubled to a record $12.45 billion. EMCOR's revenue rose nearly 20% to $4.63 billion, earnings per share increased 30%, and remaining performance obligations reached a record $15.62 billion. While EMCOR offers greater diversification and a lower forward earnings multiple of 27.2 times versus Comfort Systems' 41.46 times, Comfort Systems' faster growth, stronger margin expansion, and higher estimate revisions support its premium valuation. Analysts have raised Comfort Systems' 2026 EPS estimate to $43.08, implying 49.2% growth, compared with EMCOR's $29.22 estimate and 13% growth. Comfort Systems carries a Zacks Rank #1, or Strong Buy, while EMCOR holds a Zacks Rank #2, or Buy.

Comfort Systems USA reports that AI data center and semiconductor construction demand is sharply increasing its project backlog. Management highlights that AI-related activity is now a major contributor to current project demand, giving the company greater exposure to long-duration, infrastructure-heavy projects central to digital and chip capacity buildouts. The growing backlog, which also includes healthcare and education projects, provides improved revenue visibility and potential pricing power on complex technical work. However, the company faces concentration risk in technology-related end markets and must manage execution, scheduling, and labor constraints on multiple large projects.

Comfort Systems USA was the top contributor to the Renaissance Investment Large Cap Growth Strategy during the first quarter of 2026. The company reported broad-based upside to quarterly results, with backlog acceleration supporting further upside to 2026 estimates. Management noted that current demand trends are building off hyperscale capex announcements from one to two years ago, and growth should remain solid, driven by the continued buildout of new data centers that run AI applications. Comfort Systems USA shares gained 289.41% over the past 52 weeks and closed at $1,913.94 on June 16, 2026, with a market capitalization of $68.25 billion. The strategy outperformed the S&P 500's negative 4.3% return but lagged the Russell 1000 Growth Index, which fell 9.8%, amid a quarter where stocks fell sharply due to the Iran conflict.