Here's a breakdown of factors affecting the DJP.US ETF price: Commodity Futures Prices: DJP tracks an index of commodity futures. Fluctuations in the prices of these underlying commodity futures directly impact the ETF's value.

Index Tracking: DJP aims to replicate the performance of its benchmark index. Deviations from the index, due to tracking error, can affect the ETF's price relative to the index's calculated value.

Supply and Demand: Market forces of supply and demand for the ETF shares themselves play a role. Increased demand can drive the price up, while increased supply can push it down.

Expense Ratio: DJP has an expense ratio which is deducted from the fund's assets. This ongoing cost can subtly impact returns and, consequently, the ETF's price over time.

Interest Rates: Changes in interest rates can impact commodity prices and the attractiveness of holding futures contracts, thus indirectly affecting DJP's price.