We continue to bring you news about what may seem to be esoteric and perhaps not relevant for most MDN readers–but we think it is important. Yesterday we told you about an increase in “short selling” of Gastar Exploration’s stock (see Negative Sign: Short Selling of Gastar’s Stock Increases 12%). Previously we told you about a decrease in short selling for Magnum Hunter Resources’ stock (see Positive Sign: Short Selling of Magnum Hunter’s Stock Decreases). For a background on short selling–what it is and why it’s important–see our quick tutorial (“Short Selling” – An Important Signal for Marcellus-Related Companies). In essence, when investors “short sell” a stock they’re betting the price of the stock is heading down, which is not a sign of a healthy company. Today’s news: short selling of Rex Energy’s stock decreased by 19% for the last two weeks of September. That’s a positive sign that investors are beginning to believe Rex’s stock (i.e. the health of the company) will improve…
