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Core Viewpoint - A significant "technical storm" driven by index rules is anticipated, primarily affecting gold and silver due to an upcoming rebalancing of the Bloomberg Commodity Index (BCOM) in January 2026, which is expected to exert substantial selling pressure on these precious metals [1][2]. Group 1: Technical Selling Pressure - The core driver of the anticipated selling pressure is the mean reversion effect, as gold and silver have outperformed other commodities over the past three years, leading to an inflated weight in the BCOM index [2]. - The forced selling operations are projected to occur between January 8 and 14, 2026, coinciding with the BCOM index roll period, potentially resulting in concentrated capital outflows from the market [2]. Group 2: Seasonal Factors vs. Technical Selling - January will present a battleground of bullish and bearish factors for gold investors, with historical data indicating an average price increase of 4.6% during the last ten trading days of the year and the first twenty trading days of the new year, with an 80% probability of price increases [3]. - However, the significant technical selling pressure from the index rebalancing may counteract this seasonal bullish trend, particularly with silver facing greater selling pressure than in previous years [3]. Group 3: Broader Commodity Market Impacts - The rebalancing will not only impact precious metals but will also create complex long and short dynamics across other commodities, as different indices will adjust their weights differently [4]. - The oil market outlook is cautious, with expectations of a growing oversupply in 2026 and 2027, which may exert downward pressure on oil prices [4]. Group 4: Specific Commodity Predictions - Silver is expected to face the heaviest selling pressure, with the anticipated sell-off amounting to approximately 9% of its total open interest in the futures market [5]. - Gold's projected selling pressure is estimated at about 3% of its total open interest, which, despite being lower than silver's, still represents a significant absolute value due to gold's large market size [5]. - Cocoa is predicted to be the biggest winner from the rebalancing, with expected buying pressure equivalent to 22% of its total open interest, significantly surpassing other agricultural products [6]. Group 5: Market Volatility and Key Observations - The rebalancing will also involve the S&P GSCI index, with both indices adjusting during the same period, which could amplify market volatility due to the large asset scale tracking BCOM exceeding $60 billion [8]. - Notably, there are significant directional discrepancies between the two indices, such as cocoa being a large buy in BCOM while facing substantial sell pressure in S&P GSCI, potentially leading to cross-index arbitrage activities and unusual market fluctuations [8].