Below is a chart of DBC, the commodity ETF, over its entire lifetime. I have taken the unusual step of making the range of the Y-axis extend to $0 to illustrate more plainly the prospect for lower prices as the third instance of overhead supply takes hold.
![slopechart DBC](https://slopeofhope.com/wp-content/uploads/2020/09/slopechart_DBC-640x345.jpg)