Expectations: FuelCell is anticipated to report better second-quarter results with a loss of "only" 5 cents per share, beating a loss of 10 cents from the same period last year. Revenue is climbing fast, with sales growth expected to increase over 17% to $33.5 million. FuelCell revenue for the same quarter last year was $28.6 million. The stock has ripped higher this week. Opening Tuesday, May 29, at $1.03, and by Thursday, May 31, FuelCell was trading near $1.40. FuelCell is benefiting from lower natural gas prices. Guidance will be key to price direction. Even if FuelCell reports a loss, if the company guides higher and moves out of the red, a two- or three-banger is well within reach. Of course, FuelCell will have to deliver, but the timing appears good. FuelCell has a short interest of 5.8%, not enough to create a massive short squeeze, albeit enough to put some legs under a move higher if the earnings report is favorable. FuelCell's reported production is currently five days a week and they may move to seven days a week. Dollar General (DG) Dollar General is scheduled to release last fiscal quarter's results after the closing bell on June 4. Let's take a look at how Dollar General has done in recent quarters. Who They Are: Dollar General is a discount retailer. Its stock trades an average of 2.5 million shares per day with a marketcap of $16.4 billion. Dollar General is anticipated to report impressive first-quarter earnings. The consensus estimate is currently 59 cents a share, an improvement of 22.9% from the same period last year's 48 cents. Expect revenue to climb another 10.7% to reach $4.33 billion. Dollar General trades at a slightly rich price-to-earnings multiple of 20.6, with very little short interest of 1.5%. Dollar General's chart is picture perfect for trend followers. All the major moving-price averages are increasing in lock step. Each price drop in shares represented a buying opportunity and shares are making new 52-week highs. The real question is can management continue to deliver and is the share price becoming extended? I would wait for a pullback in price, however, if Dollar General beats, the wait could turn into a long time.