NEW: SEC Chair Paul Atkins says he remains optimistic Congress will pass the CLARITY Act, reiterating his support and offering the SEC's technical assistance.
OPINION: Michael Saylor says don't invest in Bitcoin unless you'll hold it for over 4 years, ideally 10, adding he has "no useful wisdom" for short-term traders.
NEW: SEC Chair Paul Atkins says he remains optimistic Congress will pass the CLARITY Act, reiterating his support and offering the SEC's technical assistance.