Comparing units outstanding versus one week ago at the coverage universe of ETFs at ETF Channel, the biggest inflow was seen in the ProShares ProShares Ultra VIX Short-Term Futures ETF, which added 12,800,000 units, or a 8.5% increase week over week.

And on a percentage change basis, the ETF with the biggest increase in inflows was the DSTX ETF, which added 150,000 units, for a 37.5% increase in outstanding units.

For MarketNewsVideo.com, I'm Sayoko Murase