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.

Interested in more info on TTM Technologies? Add it to your watchlist.

Fool contributor Anders Bylund holds no position in any of the companies discussed here. The Motley Fool owns shares of Apple. Motley Fool newsletter services have recommended buying shares of TTM Technologies and Apple, as well as creating a bull call spread position in Apple. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool is investors writing for investors.