Traders, or at least the bulk of institutional investors, are usually bullish in the crypto markets. As cryptocurrency markets crashed on May 19, AAVE's futures open interest fell from $200 million to $82 million as longs either closed their positions on stop orders or were forced to liquidate their positions. Polygon (MATIC) followed a similar trend, losing 62 percent on May 19 after hitting an all-time high of $2.70 the day before.