'Mad Money' Spotlight: Cramer on RF Micro Devices

Still, some were tempering their enthusiasm. Today UBS cut RF Micro Devices stock today based on valuation, taking the North Carolina-based company from buy to neutral.

"While RFMD should benefit in [the] intermediate term through ongoing restocking, we believe that visibility into broad-based recovery in end-market demand remains limited," UBS wrote.

"Even though we are moving to a Neutral rating, we believe that the company will continue to grow revenue and expand margins, driven by recent restructuring moves and improved product portfolio, but beyond that we see no near-term catalyst with potential to meaningfully change fundamentals."

Investors still took shares up 5.1%, or 18 cents, to $3.69 at the closing bell.