Comparing units outstanding versus one week ago at the coverage universe of ETFs at ETF Channel, the biggest inflow was seen in the UVIX ETF, which added 19,540,000 units, or a 36.4% increase week over week. And on a percentage change basis, the ETF with the biggest increase in inflows was the XPAY ETF, which added 20,000 units, for a 40.0% increase in outstanding units.