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 circuit board manufacturer TTM Technologies (Nasdaq: TTMI) are surging today, jumping as high as 10.9% above Friday's closing price amid relatively heavy trading.

So what: You can hang this boost on an upgrade from Needham & Co., which upped its buy recommendation to a strong buy this morning. The price target remains $21 per share, leaving plenty of headroom.

Now what: Needham pins the stronger recommendation on deep-discount pricing. "In our view, any opportunity to pick up such a high-quality company at such a discount should be seized upon," says the Needham analyst team. Our own Stock Advisor analysts would agree, as the newsletter recently re-recommended TTM more than six years after the original pick. This is possibly the least-heralded supplier of Apple (Nasdaq: AAPL) components on the market, and TTM has done wonders for my own All-Star ranking in the CAPS system.

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