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 end-to-end electronics manufacturing leader Sanmina-SCI (Nasdaq: SANM) are soaring today, gaining more than 15% in steady, heavy trading.

So what: There are multiple drivers behind this move: Intel (Nasdaq: INTC) reported a plan to double its infrastructure spending to $9 billion in 2011 with potential trickle-down benefits for Sanmina, Raymond James upgraded the stock from sell to hold last night, and rival TTM Technologies (Nasdaq: TTMI) reported a blowout quarter earlier this week. Sanmina's share price has been rising all week long, ending it with a bang.

Now what: Even after this week's massive gains, Sanmina's stock looks cheap relative to its peers and rivals. It trades for just 10 times trailing earnings while TTM fetches a multiple of 31 and Jabil Circuit (NYSE: JBL) sells for 19 times earnings. This is a fine stock to watch for all you value hounds out there.

Interested in more info on Sanmina-SCI? Add it to your watchlist.

Fool contributor Anders Bylund holds no position in any of the companies discussed here. Intel is a Motley Fool Inside Value recommendation. TTM Technologies is a Motley Fool Stock Advisor pick. Motley Fool Options has recommended buying calls on Intel. 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.