DBB vs SOYB

DBBBInvesco DB Base Metals Fund

SOYBBTeucrium Soybean Fund

In short

DBB The metals that build things, not the ones that sit in vaults. Since 2007 DBB has held futures on industrial metals like copper, aluminum and zinc, with a roll rule that hunts for the best-priced contract instead of always buying the nearest one.

SOYB Soybeans, straight up. Since 2011 SOYB has tracked a benchmark of soybean futures for future delivery, wrapped so you can buy the bean in an ordinary brokerage account, and it charges less than the typical commodity futures fund.

Stated mandate

DBB The fund is designed to track the DBIQ Optimum Yield Industrial Metals Index Excess Return, which reflects changes in the market value of the base-metals sector.

SOYB SOYB seeks to track daily changes in the soybean market for future delivery through its benchmark.

Why people hold it

• DBB A clean industrial-metals basket: futures on liquid base metals such as aluminum, zinc and copper, with no gold or oil muddying the signal.sec.gov
• The Optimum Yield roll picks contracts to limit losses when the futures curve slopes up and to capture the benefit when it slopes down, rather than defaulting to the front month.sec.govinvesco.com
• Trading since January 2007 through several full commodity cycles, and one of the steadier, more liquid names in its futures-commodity peer group.
• Expense ratio of 0.81%, sitting right at the middle of the futures-based commodity pack (PDBC 0.74%, HARD 0.78%).

• SOYB Fee of 0.63% a year sits under the 0.81% median for commodity futures funds, and under diversified rival PDBC at 0.74%.
• A single-crop play, not a commodity grab bag: the fund follows the Teucrium Soybean Index, which tracks daily moves in soybean futures.
• Trading since 2011, a long run for a one-commodity fund, and one of the stronger implementations in its commodity futures peer group.

Worth knowing

• DBB It is a commodity pool, so tax time brings a Schedule K-1 instead of a 1099. Peers like PDBC are built specifically to avoid that paperwork.invesco.com
• Base metals track the global industrial cycle, and the prospectus materials describe the futures markets the fund trades as volatile and speculative.sec.gov
• Invesco updated the underlying index methodology in November 2025 (wider eligible commodity list, liquidity screens, weight caps), so the metals mix can differ from the historic lineup.invesco.com

• SOYB One crop, one price. Weather, harvest cycles and export demand move soybean futures hard, and there is nothing else in the portfolio to soften it.
• It is a commodity pool, not a standard 1940 Act fund, so the tax paperwork differs from a stock ETF. Check how that lands on your return.
• Mid-sized asset base and moderate turnover mean bid-ask spreads can run wider than on the giant index funds, and the payoff comes from price moves, not income.

Full DBB profile⁠

Full SOYB profile⁠