According to TechFlame, according to people familiar with the matter, Nasdaq is stepping up scrutiny of companies listed on its exchange that are trying to push up stock prices by raising capital to buy and hoard cryptocurrencies. The exchange's move could slow the cryptocurrency boom, which is bringing more and more exotic tokens to the mainstream market. Nasdaq is an exchange for the vast majority of cryptocurrency stock exchanges, and currently requires some companies to obtain shareholder approval before issuing new shares to buy shares.