5 of Last Week's Biggest Winners

What's better than momentum? Mo' momentum.

Let's take a closer look at five of this past week's biggest scorchers.

Source: Barron's.

Robotics in the operating table continue to benefit MAKO Surgical, as the maker of the robotic arm system that is growing in popularity with orthopedic procedures posted blowout quarterly results. When a medical device company posts an 81% surge in revenue, bulls tend to notice.

TheStreet Ratings upgraded Valhi shares -- from hold to buy -- last week, singling out the conglomerate's growth and expanding margins.

STAAR Surgical is a rare repeater on this list. It was one of the previous week's biggest winners after posting better-than-expected results and bumping its guidance higher. There was no material news this time around for the maker of minimally invasive ophthalmic products, but momentum has a funny way of lifting the victorious higher.

BroadSoft came through with stunning quarterly results. The communications software provider reversed a year-ago deficit by posting a profit of $0.29 a share on a 64% top-line surge. Analysts were only looking for net income of $0.10 a share.

Finally, shares of NXP took off after the chip maker received a favorable mention in a Barclays Capital report. NXP specializes in NFC chips, the short-range communications technology that is finally beginning to gain in popularity with smartphone makers to give owners easier access to everything from mobile ticketing to completing financial transactions.

It was a great week for these five stocks. Now let's see if they're up for an encore.

Which of these five stocks do you think will continue to move higher? Share your thoughts in the comment box below.