The Globe and Mail reports in its Friday edition that Tyler and Cameron Winklevoss will know within days whether they have won approval to begin offering their bitcoin-based exchange-traded fund, with the digital currency's record rally hanging in the balance. A Bloomberg dispatch to The Globe says that officials from the U.S. Securities and Exchange Commission met with the twins on Feb. 14 to discuss their proposal for an ETF based on the digital currency. A decision is expected by March 11. The 35-year-old twins want to trade the security on the Bats BZX Exchange. An approved ETF would make bitcoin investing simple for small traders and institutions, while potentially boosting the digital currency just as it is hitting new highs almost daily. Around $300-million (U.S.) could pour into a bitcoin ETF in its first week, said Spencer Bogart at Blockchain Capital. "I'd be very surprised if it did anything but double from whatever levels it is at beforehand," Mr. Bogart said. Bitcoin rose as high as $1,263.49 (U.S.) on Thursday, an intraday record, passing the price of an ounce of gold. It has gained 28 per cent this year. The Winklevoss Bitcoin Trust is one of three such vehicles seeking regulatory approval.