---
title: "U.S. stock night trading volatility: MasTec fell 14.08% in after-hours trading, despite strong Q2 performance, it was sold off due to guidance falling short of expectations"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/294430676.md"
description: "Mastec fell 14.08% in after-hours trading; Construction Partner rose 0.11% in after-hours trading, with a transaction volume of USD 19,300; Sterling Infrastructure rose 3.04% in after-hours trading, with a transaction volume of USD 14,300; Quanta Services rose 0.82% in after-hours trading, with a transaction volume of USD 663"
datetime: "2026-07-31T00:17:08.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/294430676.md)
  - [en](https://longbridge.com/en/news/294430676.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/294430676.md)
generator: "portal-rs"
---

# U.S. stock night trading volatility: MasTec fell 14.08% in after-hours trading, despite strong Q2 performance, it was sold off due to guidance falling short of expectations

**U.S. Stock Market After-Hours Movements**

Mastec fell 14.08% in after-hours trading. Based on recent key news:

1.  On July 31, MasTec announced its second-quarter financial report, showing a 23% increase in revenue and a 40% increase in adjusted EBITDA, but the market reacted poorly to its full-year guidance, leading to a significant drop in stock price. Source: MasTec, Inc.

2.  On July 30, MasTec announced the appointment of Alex Spiro as a Class III director on the board. Although Spiro has extensive experience in corporate governance and securities issues, this news failed to boost market confidence. Source: MasTec, Inc.

3.  On July 29, MasTec's core business continued to grow strongly, with global module shipments reaching 61.9GW, but the market still has doubts about its future growth potential, putting pressure on the stock price. Source: MasTec, Inc. The energy and infrastructure industry has performed strongly recently, but the market still has doubts about MasTec's future growth potential.

**Stocks with High Trading Volume in the Industry**

Construction Partner rose 0.11% in after-hours trading, with a trading volume of $19,300, and no significant news recently. The trading is active, with clear capital flows. Considering the sector and industry trends, this stock shows significant volatility, and the specific reasons need further observation.

Sterling Infrastructure rose 3.04% in after-hours trading. Based on recent key news:

1.  On July 30, analysts maintained a buy rating on Sterling Infrastructure but noted that five other stocks are more attractive. This rating may affect investor confidence in Sterling Infrastructure, leading to an increase in stock price.

2.  No other significant news recently.

3.  No other significant news recently. The U.S. stock market has seen increased volatility recently, and risks should be monitored.

Quanta Services rose 0.82% in after-hours trading. Based on recent key news:

1.  On July 30, Quanta Services completed several acquisitions, including Dynamic Systems, expanding its capabilities in civil, mechanical, and overall solutions. The backlog increased to $53.44 billion, with remaining performance obligations of $33.55 billion, enhancing revenue visibility in the near to mid-term.

2.  On July 30, Quanta Services reported second-quarter revenue of $9.6 billion, exceeding the IBES estimate of $8.613 billion. Adjusted EBITDA was $1.1 billion, net income was $451.4 million, and earnings per share were $2.96, with full-year revenue expectations of $12-14 billion and adjusted EBITDA expectations of $4.09-4.21 billion.

3.  On July 30, Quanta Services' earnings and revenue growth accelerated, with a surge in backlog driven by AI construction. AI construction is driving backlog growth, and the industry outlook is optimistic

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## Related News & Research

- [MasTec prices USD 650 million 5.85% senior notes due 2036](https://longbridge.com/en/news/296142935.md)
- [70,661 Shares in MasTec, Inc. $MTZ Acquired by Mitsubishi UFJ Asset Management Co. Ltd.](https://longbridge.com/en/news/296593514.md)
- [MasTec Stock And 2 More High Growth Picks Backed By Infrastructure Spending](https://longbridge.com/en/news/296154974.md)
- [Nebius Stock And Two More Fast Growing Insider Owned Names In AI Infrastructure](https://longbridge.com/en/news/296101499.md)
- [MasTec, Inc. $MTZ Stock Holdings Increased by PensionDanmark Pensionsforsikringsaktieselskab](https://longbridge.com/en/news/295320594.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**