It's Baaaaaack.. USO (the 20yr old oil ETF that can't be killed) is the 6th most traded ETF today and has already traded a record $17b this week. It is up 28% since Iran strike (vs 9% for UNL and 1% for XLE) and 52% YTD. It holds front month futures again which are most sensitive to oil prices (it shifted to whole curve back when futures went negative but I guess it switched back).(Eric Balchunas)