Short interest is the number of shares that have been sold short but have not yet been covered or closed out. A decrease in short interest can signal that investors have become more bullish. Arista Networks's short percent of float has fallen 3.95% since its last report, which could indicate a more bullish sentiment towards the stock. Additionally, compared to its peers, Arista Networks has less short interest as a percentage of float, which could be seen as a positive sign by investors.