Healthcare and biotech baskets like ARK Genomic Revolution ETF are tricky to short because they behave like baskets of options: one or two winners can return the whole fund, and AI makes it much more likely that a few succeed. @LongVollllll sees an asymmetric short, arguing holdings are 50-100% overvalued, burn cash as rates break out and rallied on unrelated Moderna news. x.comÂ