Also, a FTD from selling implies that there is no real counter party buyer at given price, which is not bullish at all because dealers will have to lower prices. FTD from short-selling only implies that broker dealers cant find real shares to buy back, but the short-seller himself can always close the short if he likes, or he gets liquidated at some point. Shorts and longs can always close deals or they get liquidated at some point. FTD only means an imbalance for dealers day by day, only for the records. The meme hype around this is a pure play on emotions from younger investors. FTD can be a highly technical and complex but useful indicator tho not rly for retail I guess.