Stock market participants have been pleased to see major market benchmarks rebound over the past few days. Coming into Tuesday morning's trading session, though, it seemed as though investors weren't entirely clear whether the upward move would maintain its momentum. Stock index futures were mixed with only minor changes, and that seemed to indicate uncertainty about whether an economy that has been stronger than many had expected would be able to hold up against new geopolitical pressures.

Many investors are paying close attention to artificial intelligence (AI) stocks right now, and the prospects for AI remain favorable in many people's eyes. A couple of AI hopefuls saw their share prices move higher early Tuesday. Below, you'll learn more about why shareholders are happier with the prospects for Coherent (NYSE: COHR) and Unity Software (NYSE: U).

Shares of Coherent were up more than 10% in premarket trading on Tuesday morning. The maker of optical communications and silicon carbide semiconductor products gave investors some much-anticipated news, and what Coherent said generally resonated favorably with shareholders and met their expectations.

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Source Fool.com