Looking at units outstanding versus one week prior within the universe of ETFs covered at ETF Channel, the biggest outflow was seen in the Financial Select Sector SPDR Fund, where 37,500,000 units were destroyed, or a 3.7% decrease week over week. Among the largest underlying components of XLF, in morning trading today Berkshire Hathaway is up about 0.3%, and JP Morgan Chase is up by about 0.8%.

And on a percentage change basis, the ETF with the biggest outflow was the Calamos Bitcoin 90 Series Structured Alt Protection ETF - October, which lost 200,000 of its units, representing a 40.0% decline in outstanding units compared to the week prior.