Energy: supply glut a dominating concern into early 2026
Energy markets were once again the weakest part of the complex. Crude oil prices drifted lower as traders focused on the risk of a developing surplus in the coming months, with demand growth expectations failing to keep pace with rising supply. The sense that the market is well supplied, at least in the near term, continues to outweigh episodic geopolitical risk premiums.
Monthly oil market reports from OPEC and the IEA highlighted a continued divergence in forecasts with OPEC's 2026 forecast pointing to a balanced world market, while the International Energy Agency - while paring its projections - continues to expect a record surplus of more than 4 million barrels a day. Top trader Trafigura Group went further to say the surplus could amount to a "super glut" siting major new oil projects that were planned years ago and which are now coming on stream just as demand growth slows.
However, despite these predictions, Brent continues to trade above USD 60 with the forward curve not yet supporting the so-called carry trade which is required to remove crude from the market and into profitable storage plays for a period of time. In addition, Venezuela and Russian supply remain key wildcards that could suffer further disruptions amid sanctions enforcement and tanker seizures.
Refined products followed crude lower. Diesel, gasoil and gasoline all softened on the week, reinforcing the message that demand is not yet strong enough to tighten balances meaningfully as we move deeper into the winter.
Natural gas: volatility returns with a vengeance
US natural gas stood out as the week’s biggest mover, tumbling close to 18% in its worst weekly decline in nine months. January futures slid to around USD 4.2 per MMBtu as weather forecasts shifted decisively milder, sharply reducing expectations for near-term heating demand.
The speed and scale of the reversal is a timely reminder of just how weather-sensitive the gas market remains. Only weeks ago, prices had surged to multi-year highs near USD 5.5 per MMBtu on colder forecasts and robust LNG export demand. This week’s collapse highlights how quickly sentiment can turn once the weather narrative changes.
The weakness was mirrored in Europe, where gas prices fell to a 20-month low of EUR 26.6 per MWh (USD 9.13 per MMBtu), a year-over-year decline of 42%. Persistent mild weather has continued to suppress heating demand, while traders also keep an eye on any progress toward a potential Russia–Ukraine peace deal. Longer-range seasonal forecasts currently point to above-normal temperatures through the start of next year.
Agriculture: mixed fortunes beneath the surface
The agriculture sector is on track for a modest weekly loss, but here too the aggregate number hides significant variation.
Grains were broadly weaker, with soybeans once again in focus after a sharp tumble. Prices have been pressured by a combination of wrong-footed speculative length and disappointment over the pace of Chinese buying. Expectations earlier in the year that China would return aggressively to the US market have so far not been met, leaving a sizeable amount of speculative positioning exposed as prices roll over. Corn and wheat also struggled, reflecting ample supply and limited near-term demand catalysts.
In contrast, parts of the softs and livestock complex continued to perform well. Sugar and coffee edged higher, while live cattle and feeder cattle extended their strong year-to-date runs, supported by tight supply conditions and firm demand.
Cocoa deserves special mention. Prices surged more than 10% on the week to USD 6,300, thereby continuing its rebound from its recent low at USD 5,0000, and while the market tightness has eased in recent months, there is an additional structural factor at play. Cocoa is set to re-enter the Bloomberg Commodity Index in 2026 as part of the annual reweighting, a change that is already drawing attention to potential index-related flows into a relatively small and illiquid market.
Index reweighting sees the return of cocoa to the BCOM family
The upcoming annual reweighting of the BCOM index adds another layer as we head into year-end, with cocoa set to return and the index expanding to 25 contracts in 2026. While reweightings do not alter fundamentals, they can influence short-term price action, particularly in smaller and tighter markets where passive flows matter.
At the sector level, energy’s weight edges lower to 29.4%, driven by reduced allocations to Natural Gas (7.2%) and WTI (6.6%), while Brent rises to a record 8.4% and becomes the dominant crude benchmark. Precious metals increase slightly to 18.8%, with gold remaining the largest single component at 14.9%. Industrial metals rise to 15.8%, led by a meaningful increase in copper’s weight to 6.4%, reinforcing the index’s tilt toward electrification themes. Grains are reduced to 21.2%, while Livestock rises to 5.6% and Softs to 9.2%, reflecting both cocoa’s return and a broader emphasis on agricultural diversification.
BCOM keeps applying its usual diversification rules: no sector above 33%, no single commodity plus its derivatives above 25%, no single commodity above 15%, and a 2% minimum per commodity where liquidity allows. Weights are derived from liquidity and production data in a roughly 2:1 ratio, so the 2026 shifts are mostly a mechanical response to changing market size and tradability rather than discretionary macro views