(Updated with closing stock prices.)By Jonas Elmerraji Last week was a big one for the market -- and an even bigger one for last week's Rocket Stocks. Over the course of the last five trading sessions, the S&P 500 picked up 6.97%, pushing the index into positive territory year-to-date and capping off the biggest single-week gain in stocks since March. Higher stock futures on Monday hinted that the upward movement could continue into this week. Even more impressive was how well Stockpickr's Rocket Stocks fared. Our Rocket Stocks are beaten-down stocks with short-term catalysts for growth and long-term investment potential. That short-term growth certainly showed itself last week. Before we get to this week's Rocket Stocks, here's a quick look at how last week's picks fared. Topping off the list was National Oilwell Varco ( NOV), which jumped 12.11% as bulls piled into this stock's value story. The drilling equipment maker has its second-quarter earnings call scheduled for July 28, with analysts expecting to see earnings of 89 cents per share. If the market's recent rally continues, expect this company's share price to keep going in the same direction as we approach NOV's earnings announcement. Payment processor Global Payments ( GPN) came in second last week, with gains of 11.07%. The company announces earnings on Thursday after the market's close. Apple ( AAPL) also brought in big gains, of 9.55%, ahead of the company's earning's tomorrow. With iPhone 3GS sales expected to be blockbuster this quarter, investors seem keen to get on board with Steve Jobs & Co. Rounding out the list this week were Bed Bath and Beyond ( BBBY), up 9.53% this week, and Kellogg ( K), our sole losing Rocket Stock, with a narrow 0.13% decline. Now onto this week's picks. To read more, visit Stockpickr.com.