Comparing units outstanding versus one week ago at the coverage universe of ETFs at ETF Channel, the biggest inflow was seen in the Vanguard Short-Term Inflation-Protected Securities ETF (VTIP), which added 14,412,646 units, or a 5.0% increase week over week. VIDEO: VTIP, OBOR: Big ETF Inflows The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc. And on a percentage change basis, the ETF with the biggest increase in inflows was the OBOR ETF (OBOR), which added 100,000 units, for a 33.3% increase in outstanding units.