As of Aug. 20, 2026, three stocks in the communication services 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.

Imax Corp (NYSE:IMAX)

On July 23, Imax reported better-than-expected second-quarter financial results. “As we enter the second half of 2026, Christopher Nolan’s breathtaking The Odyssey — the first-ever full-length theatrical release filmed entirely with IMAX film cameras — is emerging as a transformational event for IMAX, as the purest and most complete expression yet of the power of our global platform,” said Rich Gelfond, CEO of IMAX. The company’s stock gained around 39% over the past month and has a 52-week high of $54.28.