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 Super Micro Computer, Inc (NASDAQ:SMCI) jumped 10% Friday following an analyst upgrade.

So what: After meeting with Super Micro's CFO, Stifel analyst Aaron Rakers upgraded the stock from hold to buy, and increased his 2015 and 2016 estimates. Rakers cited opportunities for Super Micro to increase gross margin going forward, and says its differentiated product offerings in the x86 server market are helping it achieve faster-than-average sector growth. Rakers assigned a $23 per share price target to Super Micro shares, which represents a 16% premium to today's close.

Now what: I happen to wholeheartedly agree, and even expressed a similar sentiment after last month's brief post-earnings pop. Specifically, I suggested at the time that Super Micro is "enjoying impressive demand during its transition to new technology," and that shares "could still prove a bargain" considering earnings "estimates are likely to drift higher as analysts have time to fully digest today's news." In the end, that's exactly what we're seeing today, and I still think Super Micro is a solid buy for patient, long-term investors.

Warren Buffett just bought nearly 9 million shares of this company
Speaking of expensive machines, imagine a company that rents a very specific and valuable piece of machinery for $41,000... per hour. (That's almost as much as the average American makes in a year!) And Warren Buffett is so confident in this company's can't-live-without-it business model, he just loaded up on 8.8 million shares. An exclusive, brand-new Motley Fool report details this company that already has over 50% market share. Just click HERE to discover more about this industry-leading stock... and join Buffett in his quest for a veritable landslide of profits!

Steve Symington has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. 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 has a disclosure policy.

Compare Brokers