The DBIQ Optimum Yield Diversified Commodity Index Excess Return[2] [Author’s Note: which underlies the Invesco DB Commodity Index Tracking Fund (DBC) and the Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC)] is the second generation. The beauty of PDBC, in particular, is that there’s an active management element too. Kriskey: So, [for example, let’s] look at the beta, as in, the sensitivity to inflation, for the benchmark for PDBC.