Quanta Stock Climbs 36% in a Month: Should You Buy Now or Wait?

Quanta Services, Inc. PWR has surged 36.3% in the past month, significantly outperforming the Zacks Engineering - R and D Services industry, the Zacks Construction sector and the S&P 500 Index. The abrupt surge of the stock mainly follows the first-quarter 2026 earnings report (April 30, 2026), which painted an upbeat picture of the company's financial performance.