Market Moonsoon

1. A rare, massive "Short Squeeze" event in the financial market that is devastating enough to completely bankrupt large hedge funds negatively affected by it, creating a broader impact across the market where many securities sharply fall in price while others rise dramatically in price. Coined during the $GME Mother of all Short Squeezes (MOASS) Saga by retail investors on Reddit (most notably from r/superstonk). In a Market Moonsoon, securities that the bankrupted market participants held "long" positions of are rapidly sold, significantly damaging the price of those securities, while the securities the market participants held "short" positions of rise significantly as they are forcibly covered after their prime broker takes on and closes the all positions.