BALTIMORE ( Stockpickr) -- After weeks of relative quiet, hundreds of companies are slated to release their quarterly performance numbers to the public this week, giving investors ample opportunities to add fundamentally driven positions to their portfolios. And this week, with investor sentiment on the rise following financial reform updates and potentially good news from BP ( BP) in the Gulf, futures are pointing to a higher open this Monday.So, with that in mind, we're going to take advantage again this week with 5 more pre-earnings plays. Investing in companies ahead of earnings can offer investors significant gain potential at the risk of equally impressive losses. But that benefit is still too hard to ignore, so for this week's Rocket Stocks plays, we'll be focusing on companies that are reporting their numbers to Wall Street this week. For the uninitiated, Rocket Stocks are our weekly list of companies with short-term gain catalysts and longer-term growth potential. In the last 53 weeks, Rocket Stocks have outperformed the S&P 500 by 50.59%. Here's a look at this week's list. While recent years have been less than favorable for legacy airlines, things are finally starting to look up for Delta ( DAL). One of the biggest catalysts for Delta right now is the airline's merger. Delta merged with Northwest last year, officially operating under a single FAA certificate, and the company expects to complete its integration by the end of this year. Ultimately, the merger is expected to bring about nearly $2 billion in annual cost savings -- and give the new, larger Delta the ability to compete with lower-cost competitors. Despite the positive post-merger outlook, there are still several major hurdles Delta will have to clear before shareholders can sleep easy. For starters, Delta will need to get a handle on its balance sheet, which has only recently become attractive following Delta's bankruptcy and the Northwest merger. Likewise, the company's dependence on oil prices is a big concern, especially given the added volatility we've been seeing in commodities. Still, Delta is a best-in-breed airline stock right now -- and that showed in the earnings numbers management released today. I'm betting that its upside momentum will carry us to gains by Friday.