A decrease in short interest typically indicates that investors are becoming more optimistic about a stock's future performance. For O-I Glass, this reduction from its previous report suggests that market sentiment is improving. Given that O-I Glass has a higher short interest compared to its peers, this change is particularly noteworthy and could imply a stronger bullish sentiment in the short term. However, it's important to note that while decreased short interest is a positive sign, it does not guarantee a price increase.