The increase in short interest for Antero Midstream suggests that investors may be expecting the stock price to decline, reflecting a bearish outlook. This perception can influence the stock's short-term performance negatively, as higher short interest often leads to increased selling pressure. However, it's also noted that high short interest can sometimes lead to a short squeeze, potentially driving the price up if the market sentiment shifts. The comparison with peers indicates that AM has a higher short interest than average, further highlighting the bearish sentiment.