Nasdaq is proposing new rule changes aimed at expediting the delisting process for companies with shares trading below $1, following criticism that the exchange hosts hundreds of risky penny stocks. The proposed amendments target companies that engage in excessive reverse stock splits and subsequently fall below the $1 threshold within a year. This move is part of Nasdaq's efforts to tighten its listing rules and address concerns about the proliferation of penny stocks on its platform. Bit Brother was delisted after three reverse stock splits. Virtu urged the SEC regarding these changes.