Invesco DB Oil Fund(AMEX:DBO)

DBO is an ETC that gets access to WTI oil using a next generation futures strategy. DBO gets exposure to the price of oil using future contracts, and futures-based exposure is subject to negative roll yield or decay when the futures curve is upsloping. DBO optimizes exposure to the curve to combat contango by rolling into whichever contract month (within the next 13) looks most attractive by its rules, rather than rolling front-month contracts. Like many of its competitors, DBO is structured as a commodity pool, so it reports capital gains on a K-1 at a 60/40 blended rate. The fund and the index are rebalanced and reconstituted annually in November.