Conestoga Capital Advisors reported that Onterris, formerly Montrose Environmental Group, detracted from portfolio performance in the second quarter of 2026 after its first-quarter revenue fell short of the prior year. The environmental services company saw lower environmental emergency response activity and severe winter weather weigh on results, though management maintained full-year guidance and noted underlying demand remained healthy. Onterris shares closed at $15.09 on August 6, 2026, with a market capitalization of $529.81 million and a year-to-date gain of 14%, but the stock lost 42.25% over the past 52 weeks. Conestoga continues to believe Onterris's integrated environmental services platform and expanding client relationships support an attractive long-term outlook.
OnterrisFirst-quarter revenue fell short due to lower environmental emergency response activity and severe winter weather, though underlying demand remained healthy.
