Once again, bitcoin investors hold their breath for an ETF approval  

Exchange-traded funds track an index or group of assets but trade like stocks. The approval of one could bring in a wave of institutional buyers and, because bitcoin has a fixed supply, theoretically push up prices.

Hunter Horsley‏, CEO of Bitwise Asset Management, which submitted its own ETF proposal to the SEC in June, said investors shouldn’t read into Thursday’s deadline.

“An SEC filing hitting a deadline is a procedural reality — it doesn’t change the odds of it getting approved, it just draws our attention to it,” Horsley said. “Just because we hit the deadline doesn’t necessarily give any indication that the SEC has changed its tune.”

Struggling bitcoin prices jumped ahead of other SEC deadlines for ETFs this summer. The cryptocurrency rallied 20 percent, above $8,000, in…