Another potential earnings short-squeeze play is 3D printing machines and printed products player ExOne ( XONE), which is set to release its numbers on Tuesday after the market close. Wall Street analysts, on average, expect ExOne to report revenue of $9.15 million on a loss of 11 cents per share. The current short interest as a percentage of the float for ExOne is extremely high at 32.6%. That means that out of the 7.36 million shares in the tradable float, 2.22 million shares are sold short by the bears. The bears have also been increasing their bets from the last reporting period by 7.3%, or by about 152,000 shares. This stock has explosive short-squeeze potential, since the bears are pressing their bets into the quarter, and the float is so small for ExOne. If the bulls get the earnings news they're looking for, then this stock could explode higher post-earnings. >>4 Hot Stocks to Trade (or Not) From a technical perspective, XONE is currently trending above its 50-day moving average, which is bullish. This stock has been uptrending strong for the last two months and change, with shares ripping higher from its low of $24.13 to its intraday high of $45.50 a share. During that uptrend, shares of XONE have been mostly making higher lows and higher highs, which is bullish technical price action. If you're in the bull camp on XONE, then I would wait until after its report and look for long-biased trades if this stock manages to break out to a new all-time high above its current all-time of $45.50 a share with high volume. Look for volume on that move that registers near or above its three-month average volume of 526,987 shares. If that breakout hits, then XONE will set up to enter new all-time-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $55 to $60 a share, or even $65 a share. I would simply avoid XONE or look for short-biased trades if after earnings it fails to trigger that move and then drops back below some key near-term support at $40 a share with high volume. If we get that move, then XONE will set up to re-test or possibly take out its next major support levels at $37.50 to $35 a share.