5 Best American Stocks to Buy and Hold for the Next Decade

4. Quanta Services, Inc. (NYSE:PWR)

On May 28, 2026, Oppenheimer upgraded Quanta Services, Inc. (NYSE:PWR) to Outperform from Perform with an $800 price target following a transfer of coverage. Oppenheimer said Quanta is “positioned in markets with superior growth prospects,” citing exposure to power generation, complex facilities development, underground delivery network modernization, and pipelines. Oppenheimer also expects Quanta to maintain a premium valuation and sees potential margin expansion.

On May 22, 2026, Quanta Services, Inc. (NYSE:PWR) said its Board of Directors authorized a new stock repurchase program allowing the company to buy back up to $1B of its outstanding common stock. Under the existing program, which expires June 30, 2026, Quanta had acquired 540,788 shares in the open market for approximately $135M.

Earlier in May, Stifel analyst Brian Brophy raised the firm’s price target on Quanta Services to $784 from $654 and maintained a Buy rating on the shares. Brophy said Q1 results were above expectations and cited the near-doubling of square footage capacity across manufacturing, fabrication, and logistics.

Quanta Services, Inc. (NYSE:PWR) provides infrastructure solutions for electric and gas utilities, power generation, load centers, manufacturing, communications, pipeline, and energy industries.