As of Aug. 17, 2026, three stocks in the materials sector could be flashing a real warning to investors who value momentum as a key criteria in their trading decisions.

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 overbought when the RSI is above 70, according to Benzinga Pro.

Here’s the latest list of major overbought players in this sector.

Newmarket Corp (NYSE:NEU)

  • On July 29, NewMarket reported a year-over-year increase in second-quarter financial results. The company’s stock gained around 28% over the past month and has a 52-week high of $961.98.
  • RSI Value: 80.6                                
  • NEU Price Action: Shares of Newmarket rose 1.5% to close at $961.92 on Friday.
  • Edge Stock Ratings: 91.92 Momentum score with Value at 93.51.

New Pacific Metals Corp (NYSE:NEWP)

  • On May 13, New Pacific Metals said net loss attributable to equity holders of the company for the three months ended March 31, 2026 was $0.87 million or $0.0 per share. The company’s stock gained around 76% over the past month and has a 52-week high of $7.03.
  • RSI Value: 80
  • NEWP Price Action: Shares of New Pacific Metals gained 1.8% to close at $6.84 on Friday.

Avient Corp (NYSE:AVNT)

  • On Aug. 6, Avient reported better-than-expected second-quarter financial results and raised its FY26 adjusted EPS guidance above estimates. “Our teams delivered another quarter of strong execution, generating organic growth and adjusted EBITDA margin expansion in each of our two business segments. By remaining close to our customers, proactively managing inflation and supply chain disruptions, we delivered profitable growth across the portfolio,” said Dr. Ashish Khandpur, Chairman, President and Chief Executive Officer, Avient Corporation. The company’s stock gained around 29% over the past month and has a 52-week high of $46.64.
  • RSI Value: 75.4
  • AVNT Price Action: Shares of Avient gained 0.5% to close at $46.34 on Friday.

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