Cambridge Industries Group (CIG) stock plummeted 5.34% during intraday trading on Tuesday, extending its multi-day correction as the broader optical communication sector remains under pressure.

The decline comes after disappointing financial results from key industry players. Industry bellwether YOFC reported first-quarter net profit significantly below market expectations, while optical module giant Lumentum posted revenue slightly below analyst consensus. These results have triggered widespread concern over near-term industry fundamentals.

The optical communication sector has accumulated substantial gains year-to-date with valuations at elevated levels, intensifying profit-taking pressure. Cambridge Industries Group, as a core name in the optical communication space specializing in high-speed optical module products, has been weighed down by the overall sector sentiment.