The most oversold stocks in the materials sector presents an opportunity to buy into undervalued companies.

The RSI is a momentum indicator, which compares a stock’s strength on days when prices go up to its strength on days when prices go down. When compared to a stock’s price action, it can give traders a better sense of how a stock may perform in the short term. An asset is typically considered oversold when the RSI is below 30, according to Benzinga Pro.

Here’s the latest list of major oversold players in this sector, having an RSI near or below 30.

O-i Glass, Inc (NYSE:OI)

  • On July 28, O-I Glass reported worse-than-expected second-quarter financial results. The company’s stock fell around 28% over the past month and has a 52-week low of $7.00.
  • RSI Value: 29.9
  • OI Price Action: Shares of O-i Glass fell 5% to close at $7.10 on Thursday.
  • Edge Stock Ratings: 2.47 Momentum score.

Compass Minerals International, Inc. (NYSE:CMP)     

  • On Aug. 5, Compass Minerals posted a wider-than-expected quarterly loss. “What we are experiencing in our Plant Nutrition business is the clearest example of what our improvement process can deliver. We produced segment Adjusted EBITDA of $15.0 million in the quarter on improved pricing and lower per-unit costs, and we have again raised our full-year expectations for this business. In Salt, we realized meaningful pricing gains in highway during the quarter, and we are seeing early signs of a constructive pricing environment within our consumer and industrial (C&I) product line as well. However, production costs at our mining operations have not yet improved at the pace we expected,” said Edward C. Dowling Jr., president and CEO. The company’s stock fell around 14% over the past five days and has a 52-week low of $16.40.
  • RSI Value: 20.7   
  • CMP Price Action: Shares of Compass Minerals fell 14.6% to close at $25.66 on Thursday.
  • Benzinga Pro’s charting tool helped identify the trend in CMP stock.

Ecovyst Inc (NYSE:ECVT)

  • On Aug. 5, the company posted upbeat quarterly earnings. “In the second quarter of 2026 Ecovyst continued to deliver on its financial and long-term strategic objectives.  As anticipated, high refinery utilization and positive alkylate economics contributed to increased volume of regenerated sulfuric acid, while virgin sulfuric acid volume increased double digits, reflecting positive demand fundamentals and the contribution from the Waggaman sulfuric acid plant we acquired in May 2025,” said Kurt J. Bitting, Ecovyst’s Chief Executive Officer. The company’s stock fell around 9% over the past five days and has a 52-week low of $7.41.
  • RSI Value: 24
  • ECVT Price Action: Shares of Ecovyst fell 3.9% to close at $11.00 on Thursday.
  • Benzinga Pro’s signals feature notified of a potential breakout in ECVT shares.

Learn more about BZ Edge Rankings—click to see scores for other stocks in the sector and see how they compare.

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