大宗商品研究所 农产品研发报告 美玉米报告上调面积，美玉米创新低。中国对美玉米回到 15%关税，配额内共计 26%关税，对美国高粱共计 22%关税，国外玉米进口利润较高，12 月巴西进口价格 2108 元。今日北方港口平仓价稳定，基本 2300 元附近，东北玉米产区现货稳定。华北 1 / 5 锦州港平舱价 元 吨 研究员：刘大勇 期货从业证号： F03107370 玉米淀粉日报 2025 年 8 月 13 日 | | | | | 第一部分 | 数据 | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | 玉米&玉米淀粉数据日报 | | | | 2025/8/13 | | | | | | 期货盘面 | | | | | | 期货 | | 收盘价 | 涨跌 | 涨跌幅 | 成交量 | 增减幅 | 持仓量 | 增减幅 | | C2601 | | 2204 | 11 | 0.50% | 102,275 | 51.31% | 310,974 | 3.79% | | C2605 | | 2275 | 14 | 0.62% | 17, ...

大宗商品研究所 农产品研发报告 玉米淀粉日报 2025 年 8 月 11 日 第一部分 数据 玉米&玉米淀粉数据日报 | 期货盘面 | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 期货 | | 收盘价 | 涨跌 | 涨跌幅 | 成交量 | 增减幅 | 持仓量 | 增减幅 | | C2601 | | 2188 | 4 | 0.18% | 69,167 | -8.98% | 290,447 | 0.00% | | C2605 | | 2255 | 7 | 0.31% | 7,546 | -17.10% | 43,075 | -0.81% | | C2509 | | 2262 | 7 | 0.31% | 268,357 | -20.71% | 638,175 | -3.22% | | CS2601 | | 2560 | 8 | 0.31% | 12,813 | 36.61% | 29,700 | 10.72% | | CS2605 | | 2616 | 7 | 0.27% | 339 | -59.29% | 61 ...

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The US corn market is experiencing a bottom - side oscillation. The US corn 12 - contract is expected to have limited downside below 400 cents per bushel. Corn auctions are ongoing, and with the upcoming new - season corn harvest in September, the market anticipates that Shandong corn prices may drop below 2,200 yuan/ton when a large amount of North China corn hits the market in mid - October. The 09 corn contract may trade in a narrow range around 2,250 yuan/ton, while the 01 corn contract may decline to around 2,150 yuan/ton under favorable weather conditions. The 09 starch contract is expected to remain weak due to its high price differentials with corn and the 01 starch contract [4]. - For trading strategies, one can consider buying the US corn 12 - contract below 400 cents per bushel, buying the 01 corn contract around 2,150 yuan/ton, and paying attention to the 9 - 1 starch reverse spread opportunity (around 100) and the opportunity to narrow the spread between the 09 corn and starch contracts (420 - 380). Options trading should be on hold [5]. 3. Summary by Directory 3.1 Chapter 1: Comprehensive Analysis and Trading Strategies - **Corn Situation**: The US corn is at the bottom and oscillating, with the price significantly below the cost (480 cents per bushel). The 12 - contract is expected to have limited downside below 400 cents per bushel. As of August 8, 2.89 million tons of corn were up for auction, with 1.18 million tons sold, a 41% success rate. High 09 - contract warehouse receipts (1.5 million tons), reduced domestic planting costs, and large losses in deep - processing industries are causing domestic corn spot prices to decline. The market is shifting focus to new crops, especially in North China, where it is expected that North China corn prices will likely fall below 2,200 yuan/ton in October. The 09 corn contract may trade narrowly around 2,250 yuan/ton, and the 01 corn contract may drop to 2,150 yuan/ton under good weather [4]. - **Starch Situation**: Starch factory operating rates are rising, but downstream demand remains weak. Although corn spot prices are falling, starch spot prices are also dropping, and starch factories are still facing large losses. The operating rates of North China starch enterprises will decline later, and with the upcoming new - corn harvest, North China starch prices will continue to fall. The 09 starch contract is expected to remain weak due to its high price differentials [4]. - **Trading Strategies**: - **Unilateral Trading**: Consider buying the US corn 12 - contract below 400 cents per bushel. The 09 corn contract may trade in a narrow range of 2,230 - 2,280 yuan/ton, and the 01 corn contract can be bought around 2,150 yuan/ton [5]. - **Arbitrage**: Pay attention to the 9 - 1 starch reverse spread opportunity around 100 and the opportunity to narrow the spread between the 09 corn and starch contracts (420 - 380) [5]. - **Options**: Hold off on options trading [5]. 3.2 Chapter 2: Core Logic Analysis 2.1 International Market - **US Corn Weather and Supply - Demand**: Favorable weather conditions are contributing to the bottom - side oscillation of US corn. The US corn import tariff is 26% for corn and 23% for sorghum. The domestic import profit has widened, with a 390 - yuan profit in the Guangdong port as Brazilian corn is expected to arrive at 2,040 yuan/ton in September while the Guangdong port price is 2,430 yuan/ton [8]. - **US Corn Export and Inventory**: As of July 31, the weekly US corn export inspection volume was 1.21 million tons, with a cumulative export volume of 61.56 million tons. The weekly export volume to China was 0 tons, and the cumulative export volume to China was 270,000 tons, accounting for 0.04%. In June, 160,000 tons of corn were imported, and from January to June, the cumulative import volume was 790,000 tons, compared with 11.05 million tons in the same period last year [9]. - **US Corn Non - Commercial Net Short and Ethanol Production**: As of July 29, the non - commercial net short position of US corn decreased to 130,000 lots, and US ethanol production rebounded. The US corn 12 - contract is expected to have limited downside below 400 cents per bushel in the short term [15]. 2.2 Domestic Market - **Deep - Processing and Feed Inventory**: Feed enterprise corn inventories are decreasing but are higher than the same period last year. As of August 7, the average corn inventory of 47 large - scale feed mills was 30.44 days, a decrease of 0.14 days from the previous week and a 3.4% increase from the same period last year. Deep - processing consumption is rising, with 1.1646 million tons of corn consumed by 149 major corn deep - processing enterprises from August 1 to August 8, an increase of 26,900 tons from the previous week. Deep - processing inventories are decreasing, with the inventory of 96 deep - processing enterprises at 3.643 million tons as of August 6, a 4.06% decrease from the previous week [19][20]. - **Port Inventories**: Northern port corn inventories are declining, while southern port grain inventories are stable. On August 1, the corn inventory at the four northern ports was 1.905 million tons, a decrease of 201,000 tons from the previous week, and the four - port shipping volume was 240,000 tons, a decrease of 153,000 tons from the previous week. In the Guangdong port, the total grain inventory increased by 22,000 tons to 1.728 million tons [23]. - **Starch Market**: Starch factory operating rates are rising, with the national corn processing volume at 560,500 tons and the starch production at 278,500 tons from August 1 to August 7, an increase of 10,700 tons from the previous week. The operating rate reached 53.83%, a 2.07% increase from the previous week. Although corn prices are falling, starch prices are also dropping, and the profit loss is expanding. The Heilongjiang profit per ton of corn is - 107 yuan/ton, an increase of 17 yuan from the previous week, while the Shandong profit is - 118 yuan/ton, a decrease of 18 yuan from the previous week. Starch inventories are rising, with the inventory at 1.32 million tons as of August 6, an increase of 27,000 tons from the previous week, a 2.1% increase [26]. - **Substitute Products**: Wheat prices are basically stable, with the North China arrival price around 2,450 yuan/ton. The price differential between wheat and corn is widening, North China corn prices are falling while Northeast corn prices are relatively strong, and the price differential between North China and Northeast corn is expanding [32]. 3.3 Chapter 3: Weekly Data Tracking - **Livestock and Poultry Farming**: From August 1 to August 7, the self - breeding and self - raising profit for pigs was 31 yuan/head, a decrease of 13 yuan/head from the previous week, and the profit from purchasing piglets was - 187 yuan/head, a decrease of 16 yuan/head from the previous week. The white - feather broiler farming profit was 1.16 yuan per chicken, compared with 0.03 yuan per chicken in the previous week. The egg - laying hen farming cost was 3.54 yuan per catty, and the profit was - 0.53 yuan per catty, compared with - 0.29 yuan per catty in the previous week [42][48]. - **Starch Downstream Consumption**: The F55 high - fructose corn syrup operating rate was 58.12%, an increase of 0.69% from the previous week, and the maltose syrup operating rate was 46.9%, an increase of 3.32% from the previous week. The corrugated paper operating rate was 61.9%, a decrease of 1.22% from the previous week, and the box - board paper operating rate was 68.68%, an increase of 1.33% from the previous week [51]. - **Price and Spread Data**: The report also tracks prices of corn and substitute products, as well as various price spreads such as corn 09 basis, corn 9 - 1 spread, and corn starch 9 - 1 spread [52][60].

1. Report Industry Investment Rating - Not provided in the content 2. Core Views of the Report - The US corn is oscillating at the bottom, and it's likely to be affected by weather speculation later. The downside space of the US corn December contract below 420 cents per bushel is limited. The 09 corn contract is expected to continue oscillating at the bottom, with strong support at 2280 and resistance at 2330. The 09 corn and starch price spread will still fluctuate within a narrow range, and it's advisable to wait and see for the 01 corn contract [3]. - The开机 rate of starch factories is decreasing, downstream demand remains weak, but提货 volume has increased, leading to a decline in starch inventory. Starch spot prices are relatively stable, and starch factories are still suffering significant losses [3]. 3. Summary by Relevant Catalogs Chapter 1: Comprehensive Analysis and Trading Strategies - **Corn**: The US corn is oscillating at the bottom. Northeast corn prices are falling, North - port inventory is decreasing, and North - port spot prices are stable. North China corn supply is tight, and 09 corn is oscillating at the bottom, affected by the auction volume [3]. - **Starch**: The开机 rate of starch factories is decreasing, downstream demand is weak,提货 volume increases, and inventory decreases. Starch spot prices are stable, and factories are in significant losses [3]. - **Trading Strategies**: Consider buying the US corn December contract below 420 cents per bushel. The 09 corn will oscillate between 2280 - 2330. It's advisable to wait and see for arbitrage and options trading [3][4]. Chapter 2: Core Logic Analysis International - **Weather and Supply - Demand**: The US corn planting is completed, the July report is flat, and the weather is good, resulting in bottom - level oscillation. The import tariffs for US corn and sorghum are 26% and 23% respectively. Domestic import profits have expanded. As of July 17, the US corn export inspection this week was 1.3 million tons, with a cumulative export of 58.11 million tons. In June, 160,000 tons of corn were imported, and from January to June, 790,000 tons were imported, compared to 1.105 billion tons in the same period last year [6]. - **Non - commercial Net Short Position and Ethanol Production**: As of July 15, the non - commercial net short position of US corn was 130,000 lots, showing a decrease. US ethanol production has rebounded. The US corn December contract is expected to have limited downside space below 420 cents per bushel [11]. Domestic - **Deep - processing and Feed**: Deep - processing consumption, inventory, and feed enterprise corn inventory are all decreasing. In the 30th week of 2025 (July 17 - July 24), 1.0624 million tons of corn were consumed by 149 major corn deep - processing enterprises, a decrease of 38,100 tons from the previous week. As of July 23, the inventory of 96 deep - processing enterprises was 4.005 million tons, a 6.21% decrease from the previous week. As of July 24, the average corn inventory of 47 large - scale feed factories was 30.87 days, a decrease of 0.47 days from the previous week but a 0.65% increase compared to the same period last year [14]. - **Port Inventory**: North - port corn inventory is decreasing, while South - port grain inventory is increasing. On July 18, the corn inventory of the four northern ports was 2.209 million tons, a weekly decrease of 97,000 tons, and the four - port shipping volume was 340,000 tons, a weekly decrease of 262,000 tons. The total grain inventory in Guangdong Port increased by 122,000 tons to 1.826 million tons [17]. - **Starch**: The开机 rate of deep - processing is decreasing. From July 17 to July 23, the national corn processing volume was 501,500 tons, and the starch production was 235,200 tons, a decrease of 25,000 tons from the previous week. The开机 rate was 45.46%, a 4.83% decrease from the previous week. The profit loss has expanded, and starch inventory is decreasing. As of July 23, the corn starch inventory was 1.311 million tons, a decrease of 35,000 tons from the previous week [20]. - **Substitutes**: Wheat prices are basically stable. The price difference between wheat and corn is narrowing, the North China corn price is rebounding, the Northeast corn price is strong, the price difference between North China and Northeast corn is expanding, and the price difference between North China corn and the 09 corn contract is rising [26]. Chapter 3: Weekly Data Tracking - **Livestock and Poultry**: From July 17 - July 23, the self - breeding and self - raising profit of pigs was 72 yuan per head, a decrease of 43 yuan per head from the previous week, and the profit of buying piglets for fattening was - 117 yuan per head, a decrease of 46 yuan per head from the previous week. The breeding profit of white - feather broilers was - 0.88 yuan per bird, compared to - 2.04 yuan per bird last week. The egg - laying hen breeding cost was 3.54 yuan per catty, and the profit was - 0.32 yuan per catty, compared to - 0.77 yuan per catty last week [32][37]. - **Deep - processing Consumption**: This week, the开机 rate of F55 high - fructose corn syrup was 56.71%, a decrease of 1.02% from the previous week, and the开机 rate of maltose syrup was 45.04%, a decrease of 0.74% from the previous week. The开机 rate of corrugated paper was 61.97%, a decrease of 1.04% from the previous week, and the开机 rate of boxboard paper was 65.6%, a decrease of 0.66% from the previous week [40]. - **Prices of Corn and Substitutes**: Relevant price trends and price differences of corn and its substitutes are presented through various price charts, such as the Jinzhou Port corn flat - hatch price, Weifang starch ex - factory price, etc. [42][43]

大宗商品研究所 农产品研发报告 玉米淀粉日报 2025 年 7 月 10 日 第一部分 数据 2025/7/10 收盘价 涨跌 涨跌幅 成交量 增减幅 持仓量 增减幅 2235 1 0.04% 24,744 -11.06% 131,680 2.56% 2268 4 0.18% 2,579 -44.93% 24,674 2.65% 2320 1 0.04% 382,569 -5.37% 1,005,818 1.15% 2624 4 0.15% 6,558 122.31% 8,927 7.54% 2653 6 0.23% 25 16.00% 242 6.14% 2677 0 0.00% 89,551 -2.93% 239,427 3.63% 青冈 嘉吉生化 诸城兴贸 寿光 锦州港 南通港 广东港口 2265 2260 2534 2466 2370 2490 2460 -5 0 0 -4 -10 0 0 -55 -60 214 146 50 170 140 龙凤 中粮 嘉吉 玉峰 金玉米 诸城兴贸 恒仁工贸 2800 2800 2850 3020 2950 2980 2960 0 0 0 0 0 0 0 147 1 ...