Wheat funds fell 5.4% as GSCI baskets rose 4.3%

A holder of iShares' GSCI dynamic-roll fund BCOMT finished the week 4.3% higher. A holder of Teucrium's Chicago wheat futures fund AWEAT finished it 5.4% lower, at $26.49, from $28 last Friday. Both thought they owned commodities. Neither had to take a view on Tehran or on wheat.

Front-month WTI crude jumped 9.7% to $91.48, from $83.40 a week earlier. December Chicago wheat settled Friday at $7.34, against a three-year high of $7.84 the prior Friday. Same asset-class label, two indexes.

Energy weight lined up most of those broad funds. Wheat sat at the bottom.

A 52% energy target versus a 29% one

Crude's jump was front-loaded. WTI rose 2.8% Monday and 5.2% Tuesday, as U.S.-Iran hostilities and Strait of Hormuz shipping risk came back into the market, then barely moved into the holiday weekend. The GSCI products did not need a view on Tehran to collect that. They needed the weight the index already assigns.

The S&P GSCI's 2026 target energy weight is 51.8%. The Bloomberg Commodity Index's 2026 energy target is 29.4%. BCOMT tracks a dynamic-roll version of the GSCI. The plain GSCI futures trust CGSG tracks the parent. Both gained 4.3%. The roll overlay that usually separates those two products was not this week's argument. Sector mix was.

APDBC sits between them, as an optimum-yield strategy usually does when energy is the contract that pays. State Street's enhanced-roll fund ACERY, which is built to favor backwardation and liquidity rather than production, gained 2.1%, a step above ABCI and well below the GSCI pair. abrdn's three-month-forward BCOM fund ABCD gained 1.0%, against 1.9% in ABCI: same 29.4% energy target, but the oil pop lived in the front of the curve, and a book that starts three months out collected less of it.

Direxion's long-or-cash Auspice product BCOM added 0.5%. A rules-based off-switch is a different bet than a full-time GSCI, and this was a week that punished standing aside.

None of those funds hold barrels. They hold futures against T-bills and, in several cases, a Cayman subsidiary so shareholders receive Form 1099. The crude number on the screen is the headline. The index weight is the return.

Wheat broke late; soybeans did not

Wheat's week ran on a different clock. AWEAT was little changed through Wednesday, then dropped 2.7% Thursday and 2.3% Friday. December Chicago wheat settled Friday at $7.34, against $7.84 the prior Friday. The fund still holds a stack, not the nearby: December 2026, March 2027, and December 2027 Chicago wheat, roughly 35/30/35. That is why a nearby that gave back more than 6% produced a 5.4% fund loss rather than a matching print. Last week's 10% gain was not a round trip. It was a partial giveback from a three-year high, with USDA's September WASDE still a week away.

The rest of the grain board did not follow.

December 2026 corn settled Friday at $5.36 3/4, up a quarter-cent on the week, after hitting a three-year high at midweek. Teucrium's corn futures fund CCORN, stacked across December 2026, March 2027, and December 2027, gained 0.6%. November 2026 soybeans settled at $13.09 3/4, up 21 3/4 cents on the week. Teucrium's soybean fund ASOYB tracked that nearby almost cleanly through its own November 2026 / January 2027 / November 2027 stack. Farm Progress on Wednesday cited a 7.1 million-bushel soybean sale to China; USDA kept printing daily sales into Friday.

That split is what CDBA actually owns. Soybeans and corn are the two largest futures lines, 14.9% of the book each. Chicago July 2027 wheat is 7.9% and Kansas City July 2027 wheat is 6.5%, together 14.4%, and neither is the December contract that made last week's high. Wheat's 5.4% hit in AWEAT landed as a deferred sleeve inside a book that also held soybeans, corn, and sugar, all up on the week. CDBA lost 1.2%. Invesco's agriculture strategy fund BPDBA lost 0.7%, in the same neighborhood.

Teucrium's sugar fund CCANE gained 1.9%. Put sugar, soy, corn, and wheat in equal weight and last week's wheat hero becomes this week's offset: the small Teucrium agricultural basket CTAGS, built as that four-leg mix, lost 0.4%.

Copper stayed put; WASDE is Friday

COMEX copper rose 0.3% on the week, to $6.6825. Invesco's industrial-metals fund BDBB gained 1.1%. Gold futures fell 1.2%. Baskets that still hold bullion towed it the wrong way while crude ran the other way.

Grain and livestock pits close next on Tuesday after the Labor Day weekend. USDA's Crop Progress report is due Tuesday, September 8. The September WASDE is Friday, September 11, at 12:00 p.m. ET. Southeast AgNET on Friday treated this week's late grain highs as possible pre-report markers.

Friday's report will reprice the same sleeves. A 50-cent swing in December wheat rewrites AWEAT and barely registers in BCOMT. An $8 swing in WTI does the reverse. Holders did not have to pick crude or wheat. They had already picked an energy weight, a contract month, and whether wheat was the fund or a 14.4% July sleeve. Those are the questions the report will score.