Group 1 - The domestic futures market closed mostly lower on December 29, with platinum futures dropping by 10.0%, while palladium, lithium carbonate, polysilicon, and wire rod futures fell over 3.5% [1] - Iron ore futures increased by 2.58%, and both rubber paper and corn futures rose by more than 1.5% [1] Group 2 - The leading futures contracts that gained included iron ore with a rise of 2.58% to a price of 796.53 yuan and a transaction volume of 6.62 billion yuan, rubber paper up by 1.87% to 4150.09 yuan with a transaction volume of 9.01 billion yuan, and corn up by 1.86% to 2249.01 yuan with a transaction volume of 6.43 billion yuan [2] - The leading futures contracts that declined included platinum down by 10.06% to 334.35 yuan with a transaction volume of 854.36 million yuan, palladium down by 10.04% to 494.13 yuan with a transaction volume of 47.86 million yuan, and lithium carbonate down by 7.89% to 1188.20 yuan with a transaction volume of 70.20 million yuan [2]

Group 1 - The domestic futures market closed mostly higher on December 22, with the European shipping main contract rising by 8.77% [1] - Palladium and platinum main contracts increased by over 4.5%, while Shanghai silver and nickel main contracts also saw significant gains [1] - The average monthly main contract for plastic fell by 2.53%, with both plastic main and polysilicon main contracts dropping over 2.0% [1] Group 2 - Leading gainers included the European shipping main contract with an increase of 8.77%, closing at 1,871.84 yuan and a transaction volume of 8.02 billion yuan [2] - Palladium main contract rose by 7.05% to 8,450 yuan with a transaction volume of 136.45 billion yuan, while platinum main contract increased by 6.99% to 5,685.45 yuan with a transaction volume of 295.41 billion yuan [2] - Leading decliners included the average monthly main contract for plastic, which fell by 2.53% to 6,154.01 yuan with a transaction volume of 1.47 billion yuan [2]

Group 1 - The domestic futures market saw most contracts rise, with platinum leading the gains at 7.0% [1] - Other notable increases included palladium at 4.7%, polysilicon at 3.6%, European shipping at 3.3%, and coking coal at 3.1% [1][2] - Conversely, apple futures fell by 2.95%, with other declines including vegetable oil at 1.9% and international copper at 1.4% [1][2] Group 2 - The closing prices and trading volumes for the leading gainers included platinum at 482.42 yuan with a transaction volume of 198.34 billion yuan, and palladium at 407.61 yuan with 24.13 billion yuan [2] - The leading losers included apple futures at 9232.02 yuan with a trading volume of 10.98 billion yuan, and vegetable oil at 9196.02 yuan with 203.05 million yuan [2]

Group 1 - The domestic futures market closed mostly lower on December 9, with industrial silicon futures dropping by 3.47%, while other commodities like coke, fuel oil, crude oil, and coking coal also fell by over 2.0% [1] - Conversely, polysilicon futures increased by 3.45%, along with live pig futures and fiberboard futures, which rose by over 1.0% [1] Group 2 - The leading futures contracts that gained included polysilicon with a rise of 3.45% to a price of 55,610 yuan and a trading volume of 26.205 billion yuan, and live pig futures which increased by 1.55% to 11,450 yuan with a trading volume of 16.889 billion yuan [2] - The leading futures contracts that declined included industrial silicon, which fell by 3.47% to 8,340 yuan with a trading volume of 13.645 billion yuan, and coke futures which dropped by 2.7% to 1,514 yuan with a trading volume of 2.181 billion yuan [2]