Ether (ETH) spike 18% in 24 hours on fresh speculation that a Spot Ether exchange-traded fund could be approved this week, despite months of pessimism. There are chatters that the U.S. Securities and Exchange Commission is asking filers to speed up their 19b-4 filings, according to Bloomberg ETF analysts Eric Balchunas and James Seifert. This has prompted the pair to raise their approval odds from 25% to 75%.