Source (paywall): From the post: >>Shares in bitcoin-hoarding companies have tumbled in recent weeks as investors grow increasingly concerned about an overcrowded market, in the first major setback for the “crypto treasury” craze that has swept financial markets this summer. Strategy, the world’s biggest corporate bitcoin holder, has fallen 18 per cent over the past month to its lowest level since April, dragging down shares in a slew of groups that have aped founder Michael Saylor’s use of a public company to stockpile cryptocurrencies.