ETF Channel Staff - Wednesday, September 14, 10:51 AM

Launch related slideshow:
The 10 Worst ETF Performers »

Looking at units outstanding versus one week prior within the universe of ETFs covered at ETF Channel, the biggest outflow was seen in the Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF, where 18,000,000 units were destroyed, or a 3.7% decrease week over week.

And on a percentage change basis, the ETF with the biggest outflow was the GRZZ ETF, which lost 30,000 of its units, representing a 37.5% decline in outstanding units compared to the week prior.