Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Universal Display (Nasdaq: PANL) fell more than 12% in early trading after multiple analysts said a sourcing agreement with Apple (Nasdaq: AAPL) isn't imminent.

So what: Over the summer, Universal Display struck a deal with Samsung to supply OLED screens for its various devices. The agreement led to speculation that a deal with Apple would come to fruition at some point. Analysts at Canaccord Genuity and Cowen & Co. disagree.

Now what: So be it. Universal Display has plenty of potential non-Apple customers other than Samsung, Barron's quotes a Cowen analyst as saying in a research note. I agree; I'd also point out that LG Display (NYSE: LPL) is a partner. Do you believe that's enough momentum? What do you expect from Universal Display's third-quarter earnings report, which is due tomorrow? Please weigh in using the comments box below.

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