Quanta Services and Comfort Systems USA, two stocks tied to tech's building boom, fell sharply between October 6 and November 4 despite record quarters. Comfort Systems lost 40.0% and Quanta lost 19.3%. On November 4 alone, Quanta dropped 11.7% and Comfort Systems 15.1%. Quanta raised its 2026 revenue guidance to $41.3 billion to $41.6 billion, from $39.5 billion, and has a record backlog of about $64 billion. Comfort Systems expects same-store revenue growth in the mid-40% range in 2026 and the mid-20% range in 2027, with a backlog of $17.8 billion. Comfort Systems trades at 23.5 times trailing earnings, against 51.9 times for Quanta. Its operating margin is 16.7% versus 6.8%, and it holds $1.78 billion more cash than debt. Tech customers made up 59% of its revenue, up from 42%.

Promising construction stocks worth watching - october 28th. Caterpillar, Quanta Services, Comfort Systems USA, Sterling Infrastructure, and Deere & Company are the five Construction stocks to watch today, according to MarketBeat's stock screener tool. Construction stocks are shares of publicly traded companies involved in building homes, commercial properties, infrastructure, or supplying construction materials and equipment. Investors often view them as cyclical stocks because their performance can be influenced by interest rates, economic growth, housing demand, government infrastructure spending, and commodity costs. These companies had the highest dollar trading volume of any Construction stocks within the last several days. Caterpillar (CAT). Caterpillar Inc. manufactures and sells construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives in worldwide. Its Construction Industries segment offers asphalt pavers, compactors, road reclaimers, forestry machines, cold planers, material handlers, track-type tractors, excavators, telehandlers, motor graders, and pipelayers; compact track, wheel, track-type, backhoe, and skid steer loaders; and related parts and tools. Quanta Services (PWR). Quanta Services, Inc. provides infrastructure solutions for the electric and gas utility, renewable energy, communications, and pipeline and energy industries in the United States, Canada, Australia, and internationally. The company's Electric Power Infrastructure Solutions segment engages in the design, procurement, construction, upgrade, repair, and maintenance of electric power transmission and distribution infrastructure and substation facilities; installation, maintenance, and upgrade of electric power infrastructure projects; installation of smart grid technologies on electric power networks; and design, installation, maintenance, and repair of commercial and industrial wirings. Comfort Systems USA (FIX). Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. It operates through two segments, Mechanical and Electrical. The company offers heating, ventilation, and air conditioning systems, as well as plumbing, electrical, piping and controls, off-site construction, monitoring, and fire protection. Sterling Infrastructure (STRL). Sterling Infrastructure, Inc. engages in the provision of e-infrastructure, transportation, and building solutions primarily in the United States. It operates through three segments: E-Infrastructure Solutions, Transportation Solutions, and Building Solutions. The E-Infrastructure Solutions segment provides site development services for the blue-chip end users in the e-commerce distribution center, data center, manufacturing, warehousing, and power generation sectors. Deere & Company (DE). Deere & Co. engages in the manufacture and distribution of equipment used in agriculture, construction, forestry, and turf care. It operates through the following segments: Agriculture and Turf, Construction and Forestry, and Financial Services. The Agriculture and Turf segment focuses on the distribution and manufacture of a full line of agriculture and turf equipment and related service parts.

StockStory has named three growth stocks it expects to keep climbing: Comfort Systems, Quanta, and Woodward. Comfort Systems (NYSE:FIX), a mechanical and electrical contractor, grew revenue 50.7% over the past year. Its backlog grew an average of 60.2% over two years, and its shares trade at $1,163, or 22.3x forward earnings. Quanta (NYSE:PWR), a construction engineering firm, posted 26.3% revenue growth. Its backlog grew 25.2% on average over two years, and its shares trade at $545.61, or 29.7x forward earnings. Woodward (NASDAQ:WWD) makes energy control products. Revenue rose 22.3% in the past year, and the shares trade at $303.66, or 29.7x forward earnings.