Index Trends - On May 21st, the Shanghai Composite Index rose 0.21% to close at 3387.57 points with a trading volume of 465.957 billion yuan; the Shenzhen Component Index rose 0.44% to close at 10294.22 points with a trading volume of 707.488 billion yuan [1]. - The CSI 1000 Index fell 0.23% with a trading volume of 234.419 billion yuan, opening at 6137.1, closing at 6132.18, with a daily high of 6141.73 and a low of 6109.92 [1]. - The CSI 500 Index rose 0.18% with a trading volume of 155.147 billion yuan, opening at 5741.69, closing at 5757.92, with a daily high of 5763.08 and a low of 5733.83 [1]. - The SSE 50 Index rose 0.43% with a trading volume of 59.788 billion yuan, opening at 2716.84, closing at 2728.43, with a daily high of 2740.77 and a low of 2716.84 [1]. Impact of Sector Movements on Indexes - The CSI 1000 fell 13.84 points from the previous close. Sectors such as pharmaceuticals and utilities pulled the index up, while media, computer, and electronics sectors pulled it down [3]. - The CSI 500 rose 10.55 points from the previous close. Sectors such as automobiles, pharmaceuticals, and non - ferrous metals pulled the index up, while communication, machinery, and electronics sectors pulled it down [3]. - The SSE 300 rose 18.21 points from the previous close. Sectors such as power equipment, non - ferrous metals, and banks pulled the index up, while the electronics sector pulled it down [3]. - The SSE 50 rose 11.8 points from the previous close. Sectors such as non - ferrous metals, pharmaceuticals, and coal pulled the index up, while the electronics sector pulled it down [3]. Futures Basis and Annualized Opening Costs - For IM contracts, IM00 had an average daily basis of - 133.48, IM01 of - 223.85, IM02 of - 375.94, and IM03 of - 545.18 [13]. - For IC contracts, IC00 had an average daily basis of - 100.87, IC01 of - 177.63, IC02 of - 299.38, and IC03 of - 432.85 [13]. - For IF contracts, IF00 had an average daily basis of - 35.53, IF01 of - 76.46, IF02 of - 108.45, and IF03 of - 151.56 [13]. - For IH contracts, IH00 had an average daily basis of - 17.38, IH01 of - 48.12, IH02 of - 54.74, and IH03 of - 58.39 [13]. Futures Roll - over Point Differences and Annualized Costs - For IM contracts, data on roll - over point differences and their annualized costs at different times are provided, such as at 09:45, IM00 - 01 was - 53.1193, IM00 - 02 was - 158.791, etc. [22]. - For IC contracts, data on roll - over point differences and their annualized costs at different times are provided, such as at 09:45, IC00 - 01 was - 26.1467, IC00 - 02 was - 90.0318, etc. [23]. - For IF contracts, data on roll - over point differences and their annualized costs at different times are provided, such as at 09:45, IF00 - 01 was - 5.99267, IF00 - 02 was - 13.4098, etc. [23]. - For IH contracts, data on roll - over point differences and their annualized costs at different times are provided, such as at 09:45, IH00 - 01 was - 1.29644, IH00 - 02 was 1.559889, etc. [25].

Group 1: Index Movements - On May 14th, the Shanghai Composite Index rose by 0.86% to close at 3403.95 points with a trading volume of 534.873 billion yuan; the Shenzhen Component Index rose by 0.64% to close at 10354.22 points with a trading volume of 781.854 billion yuan [1] - The CSI 1000 Index rose by 0.15% with a trading volume of 252.514 billion yuan, opening at 6144.25, closing at 6160.37, with a daily high of 6199.3 and a low of 6111.11 [1] - The CSI 500 Index rose by 0.3% with a trading volume of 188.145 billion yuan, opening at 5778.08, closing at 5799.12, with a daily high of 5835.49 and a low of 5750.54 [1] - The SSE 180 Index rose by 1.21% with a trading volume of 319.465 billion yuan, opening at 3894.84, closing at 3943.21, with a daily high of 3960.52 and a low of 3890.65 [1] - The SSE 50 Index rose by 1.69% with a trading volume of 94.724 billion yuan, opening at 2708.56, closing at 2753.78, with a daily high of 2766.25 and a low of 2708.42 [1] Group 2: Impact of Sector Movements on Indexes - The CSI 1000 rose 9.36 points from the previous close. Sectors such as transportation, computer, and non - bank finance significantly pulled the index up, while national defense and military industry, electronics, and power equipment pulled it down [2] - The CSI 500 rose 17.45 points from the previous close. Non - bank finance and non - ferrous metals significantly pulled the index up, while national defense and military industry and power equipment pulled it down [2] - The SSE 180 rose 46.95 points from the previous close. Non - bank finance and food and beverage significantly pulled the index up [2] - The SSE 50 rose 45.72 points from the previous close. Non - bank finance and food and beverage significantly pulled the index up [2] Group 3: Stock Index Futures Basis and Annualized Opening Costs - IM00 had an average daily basis of - 7.95, IM01 of - 125.68, IM02 of - 321.98, and IM03 of - 467.01 [13] - IC00 had an average daily basis of - 2.8, IC01 of - 106.34, IC02 of - 273.71, and IC03 of - 386.92 [13] - IF00 had an average daily basis of - 0.33, IF01 of - 37.18, IF02 of - 106.52, and IF03 of - 146.47 [13] - IH00 had an average daily basis of 1.27, IH01 of - 17.61, IH02 of - 51.43, and IH03 of - 55.33 [13] Group 4: Stock Index Futures Roll - over Point Differences and Annualized Costs - For IM, data on roll - over point differences and their annualized costs at different times (e.g., at 09:45, IM00 - 01 was - 53.1193) are provided [22] - For IC, data on roll - over point differences and their annualized costs at different times (e.g., at 09:45, IC00 - 01 was - 26.1467) are provided [23] - For IF, data on roll - over point differences and their annualized costs at different times (e.g., at 09:45, IF00 - 01 was - 13.4098) are provided [23] - For IH, data on roll - over point differences and their annualized costs at different times (e.g., at 09:45, IH00 - 01 was - 1.29644) are provided [25]

Report Summary 1. Index Trends - On April 29th, the Shanghai Composite Index closed at 3286.65 points with a change of -0.05% and a trading volume of 430.881 billion yuan; the Shenzhen Component Index closed at 9849.8 points with a change of -0.05% and a trading volume of 591.202 billion yuan [1]. - The CSI 1000 Index closed at 5903.38 points with a change of 0.45% and a trading volume of 219.412 billion yuan; the CSI 500 Index closed at 5604.91 points with a change of 0.12% and a trading volume of 158.033 billion yuan [1]. - The SSE 50 Index closed at 2645.51 points with a change of -0.22% and a trading volume of 53.894 billion yuan; the CSI 300 Index closed at 3775.08 points with a change of -0.17% and a trading volume of 197.463 billion yuan [1]. 2. Impact of Sector Movements on Indexes - The CSI 1000 Index rose 26.32 points. Sectors such as machinery, computer, and electronics had a significant positive impact, while the public utilities sector had a negative impact [3]. - The CSI 500 Index rose 6.61 points. Sectors like computer, pharmaceutical, and food and beverage had a positive impact, while national defense, power equipment, and public utilities sectors had a negative impact [3]. - The CSI 300 Index fell 6.54 points. Sectors including electronics, machinery, and household appliances had a positive impact, while food and beverage, public utilities, and power equipment sectors had a negative impact [3]. - The SSE 50 Index fell 5.72 points. Sectors such as electronics, pharmaceutical, and machinery had a positive impact, while non - banking finance, power equipment, and banking sectors had a negative impact [3]. 3. Futures Basis and Annualized Opening Costs - For IM contracts, the average daily basis for IM00 was -39.94, IM01 was -136.95, IM02 was -297.78, and IM03 was -425.98 [13]. - For IC contracts, the average daily basis for IC00 was -33.17, IC01 was -119.32, IC02 was -246.92, and IC03 was -340.05 [13]. - For IF contracts, the average daily basis for IF00 was -15.5, IF01 was -48.3, IF02 was -104.23, and IF03 was -131.19 [13]. - For IH contracts, the average daily basis for IH00 was -4.81, IH01 was -21.88, IH02 was -54.45, and IH03 was -59.08 [13]. 4. Futures Roll - over Point Differences and Annualized Costs - The report provides data on the annualized costs and 15 - minute average point differences for IM, IC, IF, and IH contracts during roll - over periods [22][24][25][27].

1. Report Industry Investment Rating - No relevant content provided. 2. Core View of the Report - The report presents the performance of major stock indices on April 28, including their price movements, trading volumes, and the impact of sector fluctuations on these indices. It also provides data on the basis and cost of futures contracts, as well as the points difference and cost of futures contract roll - overs [1][4][13][21]. 3. Summary by Directory Index Trends - On April 28, the Shanghai Composite Index closed at 3288.41 points, down 0.2%, with a trading volume of 441.916 billion yuan. The Shenzhen Component Index closed at 9855.2 points, down 0.62%, with a trading volume of 614.393 billion yuan [1]. - The CSI 1000 Index closed at 5877.06 points, down 1.05%, with a trading volume of 221.938 billion yuan. The CSI 500 Index closed at 5598.3 points, down 0.51%, with a trading volume of 167.616 billion yuan [1]. - The SSE 50 Index closed at 2651.23 points, up 0.09%, with a trading volume of 57.671 billion yuan. The SSE 300 Index closed at 3781.62 points, down 0.14%, with a trading volume of 210.635 billion yuan [1]. Impact of Sector Movements on Index - The CSI 1000 Index dropped 62.44 points, with sectors such as machinery, basic chemicals, and electronics significantly pulling the index down [4]. - The CSI 500 Index dropped 28.88 points, with machinery, electronics, and non - bank finance sectors significantly pulling the index down [4]. - The SSE 300 Index dropped 5.37 points. Sectors like banks, household appliances, and utilities pulled the index up, while real estate, non - bank finance, and automotive sectors pulled it down [4]. - The SSE 50 Index rose 2.42 points. Sectors like banks, electronics, and utilities pulled the index up, while coal, real estate, and food and beverage sectors pulled it down [4]. Futures Basis and Annualized Opening Cost - For the IM contracts, the average daily basis for IM00 was - 58.89, IM01 was - 158.16, IM02 was - 316.67, and IM03 was - 442.49 [13]. - For the IC contracts, the average daily basis for IC00 was - 47.14, IC01 was - 134.14, IC02 was - 260.58, and IC03 was - 354.58 [13]. - For the IF contracts, the average daily basis for IF00 was - 19.19, IF01 was - 52.35, IF02 was - 109.54, and IF03 was - 135.66 [13]. - For the IH contracts, the average daily basis for IH00 was - 5.89, IH01 was - 23.37, IH02 was - 56.54, and IH03 was - 61.01 [13]. Futures Contract Roll - over Points Difference and Annualized Cost - The report provides 15 - minute average data on the points difference and annualized cost of contract roll - overs for IM, IC, IF, and IH futures contracts [21][23].

1. Index Trends - On April 15th, the Shanghai Composite Index rose by 0.15%, closing at 3267.66 points with a trading volume of 456.33 billion yuan. The Shenzhen Component Index fell by 0.27%, closing at 9858.1 points with a trading volume of 620.861 billion yuan [1]. - The CSI 1000 Index fell by 0.41% with a trading volume of 225.752 billion yuan, opening at 5938.57, closing at 5914.03, with a daily high of 5949.86 and a low of 5872.29 [1]. - The CSI 500 Index fell by 0.44% with a trading volume of 161.901 billion yuan, opening at 5625.0, closing at 5602.53, with a daily high of 5626.68 and a low of 5567.03 [1]. - The SSE 50 Index rose by 0.24% with a trading volume of 72.435 billion yuan, opening at 2624.2, closing at 2634.59, with a daily high of 2637.75 and a low of 2615.37 [1]. 2. Impact of Sector Movements on Indexes - The CSI 1000 fell 24.5 points from the previous close. Sectors such as National Defense and Military Industry, Computer, and Electronics significantly dragged the index down [2]. - The CSI 500 fell 24.61 points from the previous close. Sectors like Electronics, Computer, and National Defense and Military Industry had a significant downward pull on the index [2]. - The SSE 300 rose 2.09 points from the previous close. Sectors such as Banking, Household Appliances, and Food and Beverage pulled the index up, while Computer, Basic Chemicals, and Electronics dragged it down [2]. - The SSE 50 rose 6.38 points from the previous close. Sectors including Banking, Food and Beverage, and Non - Banking Finance pushed the index up, while Pharmaceutical Biology, Basic Chemicals, and Electronics pulled it down [2]. 3. Stock Index Futures Basis and Annualized Opening Costs - For IM contracts, IM00 had an average daily basis of - 30.23, IM01 of - 124.59, IM02 of - 232.38, and IM03 of - 403.73 [12]. - For IC contracts, IC00 had an average daily basis of - 25.94, IC01 of - 99.32, IC02 of - 183.93, and IC03 of - 315.12 [12]. - For IF contracts, IF00 had an average daily basis of - 12.95, IF01 of - 32.35, IF02 of - 64.15, and IF03 of - 115.64 [12]. - For IH contracts, IH00 had an average daily basis of - 4.31, IH01 of - 11.15, IH02 of - 21.94, and IH03 of - 54.49 [12]. 4. Stock Index Futures Roll - over Point Differences and Annualized Costs - The report provides 15 - minute average data on roll - over point differences and their annualized costs for IM, IC, IF, and IH contracts [23][25][27].