Can anyone explain why @ProSharesETF  Strategy Trust ETF ($BITO) plans to invest 25% of assets in itself, a "wholly-owned" Cayman Islands sub? What is wrong with @cme futures?  @daveweisberger1 @4BetterOrWurst  @ltabb @jasonzweigwsj @deborahfuhr  https://t.co/xbhq6kspLX https://t.co/bez2HBnf0G