1. Report Industry Investment Rating - The rating for the bond market is "volatile" [4] 2. Core Viewpoints of the Report - Imposing VAT on treasury bond interest is bearish for the bond market in the long run. The theoretical negative impact on the 10Y treasury bond rate is about 10BP, but the actual impact should be less than the theoretical value [1][9] - The policy will cause price differentiation between new and old bond varieties in the short term, and existing bonds will gain a scarcity premium due to the tax - exemption advantage [1][9] - The policy will affect the CTD bonds of treasury bond futures, and the probability of CTD bond switching varies among different contracts [1] - The inter - period spread of treasury bond futures will be affected by the policy, and different strategies are recommended for different contracts [2][16][17] 3. Summary by Relevant Catalogs 3.1 Impact of Treasury Bond Interest Taxation on CTD Switching - **Policy Purpose**: The main purpose of imposing VAT on treasury bond interest is to improve the bond market price formation mechanism, and increasing fiscal revenue is a relatively secondary goal [8] - **Long - term Impact on the Bond Market**: After taxation, the coupon attractiveness of treasury bonds decreases, institutional bond - allocation willingness declines, and some funds flow to risk assets, leading to a decrease in bond - market sentiment. Newly issued bonds need to increase the coupon rate to compensate for the tax cost [9] - **Impact on CTD Bonds**: The CTD bonds of different contracts have different probabilities of switching to new bonds. For example, the CTD bonds of TL contracts are unlikely to switch; the 09 contracts of T, TF, and TS are also unlikely to switch; T2512 has a certain probability of switching; T2603 and TS2603 have a high probability of switching, and TF2603 has a certain probability of switching [1][12][15] 3.2 Impact of Treasury Bond Interest Taxation on Inter - period Spreads and Strategy Recommendations - **TL Contracts**: The spread of TL09 - 12 contracts has widened. The current spread has basically priced in existing factors, and subsequent trends are more affected by market sentiment. The spread is expected to rise in shock [16] - **T Contracts**: The T09 - 12 spread is high. A narrowing strategy has a certain cost - effectiveness, but continuous narrowing is not recommended. Short - term opportunities can be sought when the bond - market sentiment recovers [17] - **TF and TS Contracts**: The cost - effectiveness of the narrowing strategy for TF and TS09 - 12 contracts is lower than that of T contracts. If the market sentiment is weak, the inter - period spread may rise slightly [20][21] - **12 - 03 Contracts**: The arbitrage strategy for 12 - 03 contracts is not recommended. The 03 contracts have low liquidity, and the CTD bonds of most 2603 contracts have a high probability of switching to new bonds, resulting in a high theoretical central spread [26] - **Long - term Trend**: The central spread of inter - period spreads will gradually rise. The long - term upward logic of treasury bonds is changing, and the cost - effectiveness of going long on treasury bonds has decreased [27]

Report Industry Investment Rating No relevant content provided. Core Viewpoints of the Report - The resumption of VAT collection on bonds has a short - term positive and long - term negative impact on the bond market, but the overall impact is controllable. In the short term, the cost - performance of existing bonds and credit bonds has increased, and the bond market has risen stage by stage. In the long term, it may be unfavorable to the bond market. The probability of the bond market breaking through the previous low has decreased, and it may still fluctuate in the range of 1.65% - 1.70%. Attention should be paid to the primary issuance rate of new bonds after August 8 and the impact of macro factors on the risk preference of the bond market [2]. - When summarizing the views of fixed - income sellers on the resumption of VAT collection, there are bullish, neutral/ bearish views. Half of the fixed - income sellers are bullish on the bond market this week, but the sentiment has declined compared with last week. The sentiment of fixed - income buyers is relatively cautious, and nearly 70% are neutral [3]. Summary According to the Directory 1. Seller and Buyer Markets 1.1 Seller Market Sentiment Index and Interest - rate Bonds - The weighted index of the seller sentiment this week is 0.33, and the unweighted index is 0.47, both showing a decline compared with last week. The current institutions generally hold a neutral - to - bullish view, with 15 bullish, 14 neutral, and 1 bearish. 50% of the institutions are bullish, and 47% are neutral, and 3% are bearish [13]. 1.2 Buyer Market Sentiment Index and Interest - rate Bonds - The weighted sentiment index of buyers this week is 0.08, and the unweighted index is 0.11, with the unweighted index decreasing by 0.08 compared with last week. Currently, institutions generally hold a neutral - to - bullish view, with 6 bullish, 19 neutral, and 3 bearish. 21% of the institutions are bullish, 68% are neutral, and 11% are bearish [14]. 1.3 Credit Bonds - Market hot topics include preventive redemptions of wealth management products and a decline in the scale of credit - bond ETFs. The preventive redemptions of wealth management products are due to the central bank's continuous net withdrawal and tightened capital, leading to selling pressure on credit bonds. The growth of credit - bond ETFs has slowed down, and the subsequent increase in ETFs may fall short of expectations [19]. 1.4 Convertible Bonds - Institutions generally hold a neutral - to - bullish view this week, with 10 bullish and 3 neutral. 77% of the institutions are bullish, and 23% are neutral [22]. 2. Treasury Bond Futures Tracking 2.1 Futures Trading - As of August 1, the prices of TS/TF/T/TL contracts of treasury bonds have all increased, while the trading volume, open interest, and trading - to - open - interest ratio have all decreased [26][27]. 2.2 Spot Bond Trading - On August 1, the turnover rates of 30 - year treasury bonds and interest - rate bonds decreased, while the turnover rate of 10 - year China Development Bank bonds increased [32][36]. 2.3 Basis Trading - As of August 1, the basis and net basis of the main contracts have all narrowed, and the IRR has generally increased [41][44]. 2.4 Inter - delivery Spread and Inter - variety Spread - The inter - delivery spread of the TL contract has widened, while the spreads of other main contracts have narrowed. Among the inter - variety spreads, except for the 2*TF - T contract, the spreads of other main contracts have narrowed [51][52].

Core Insights - The article emphasizes the importance of understanding stock index futures as indicators of market trends, akin to meteorological signals in climate changes [1][6][7] Group 1: Stock Index Futures and Market Trends - The "cross-period price difference" in stock index futures reflects market expectations for future trends, with a positive spread indicating optimism and a negative spread signaling increased short-term risk [2] - In Q3 2023, the price difference for the CSI 300 stock index futures expanded from +5 points to +20 points, predicting a subsequent rise in the index driven by improved consumption data, resulting in a 15% excess return for traders who monitored these changes [2] - A volatility ratio between price difference and spot index often indicates an impending acceleration in trends, successfully capturing three major upward movements in tech stocks in 2024 [2] Group 2: Open Interest and Market Sentiment - Changes in open interest can reveal the true intentions of capital flows, with a continuous increase in total open interest and a long-short ratio exceeding 1.5 indicating accumulating trend strength [3] - In Q1 2024, a significant increase in institutional accounts in the long positions of the CSI 500 stock index futures from 30% to 45% led to an 8% rise in the index within a month [3] - A sudden drop in open interest alongside price declines can signal potential market bottoms, as seen in October 2023 when the open interest for the SSE 50 stock index futures decreased by 15% while price declines slowed [3] Group 3: Arbitrage Opportunities - The "risk-free zone" in futures trading indicates when stock index futures prices deviate significantly from spot indices, prompting arbitrage activities to restore balance [5] - In mid-2024, a quantitative team initiated arbitrage when the price difference reached 7%, achieving a 2.3% risk-free return within 14 trading days [5] - The flow of arbitrage funds can signal market conditions, with increased positive arbitrage indicating potential overvaluation of the spot index, while active negative arbitrage may suggest a market bottom [5] Group 4: Contract Rollovers and Capital Movements - The "migration pattern" during contract rollovers reveals the trajectory of major capital movements, with a high rollover transfer rate correlating with subsequent trend strength [6] - In Q2 2024, a rapid increase in the rollover transfer rate for the CSI 1000 stock index futures from 20% to 80% predicted a 12% rise in small-cap stocks [6] - An expansion of backwardation during rollovers may indicate pessimistic expectations for the long-term market, as evidenced by a warning of adjustment risks in Q3 2023 [6]

1. Investment Ratings No investment ratings for the industries are provided in the reports. 2. Core Views Oils and Fats Industry - Palm oil: The market's concern about the end - of - month inventory growth will support the market. The futures of crude palm oil may start an upward trend. It is recommended to go long on dips. - Soybean oil: The digestion of the US biodiesel policy has ended. The domestic spot trading is light, but the market sentiment may improve in August [1]. Meal Industry - The US soybean remains in a bottom - oscillating pattern. The domestic soybean and soybean meal inventories are rising, and the basis is oscillating at a low level. It is recommended to wait and see [2]. Livestock (Pig) Industry - The pig spot market is weak. The short - term pig price is not optimistic, with the near - month contract facing strong resistance. It is not advisable to short the far - month contract blindly [4]. Corn Industry - In the short term, the corn market is not active, with the futures oscillating. In the long run, the supply may be tight in the third quarter and loose in the fourth quarter [6]. Sugar Industry - Internationally, the raw sugar price may bottom out, but the overall trend is bearish. Domestically, the supply - demand situation is marginally loose, with the futures expected to oscillate at a high level in the short term [8]. Egg Industry - The egg demand may first decrease and then increase this week. The egg price in some regions may decline next week, but the spot price still has some upward potential [11]. Cotton Industry - The short - term domestic cotton price may oscillate within a range, and the price may face pressure after the new cotton is launched [14]. 3. Summary by Industry Oils and Fats Industry - **Prices**: On July 28 - 29, the spot and futures prices of soybean oil, palm oil, and rapeseed oil showed different changes, with the basis and spreads also fluctuating. - **Inventory and Market Outlook**: Palm oil inventory concerns support the market, and soybean oil may improve in August [1]. Meal Industry - **Prices and Spreads**: The prices of soybean meal, rapeseed meal, and soybeans changed, with the spreads such as the inter - period spreads and oil - meal ratios also showing fluctuations. - **Market Situation**: The US soybean is at the bottom, and the domestic supply and demand situation affects the meal market [2]. Livestock (Pig) Industry - **Prices and Indicators**: The futures and spot prices of pigs changed, along with indicators such as the basis, spreads, and slaughter volume. - **Market Outlook**: The short - term pig price is not optimistic, and the far - month contract needs cautious operation [4]. Corn Industry - **Prices and Indicators**: The prices of corn and corn starch futures and spot, along with indicators such as the basis, spreads, and inventory, changed. - **Market Outlook**: The short - term market is inactive, and the long - term supply - demand situation varies [6]. Sugar Industry - **Prices and Indicators**: The futures and spot prices of sugar, along with indicators such as the basis, spreads, and inventory, changed. - **Market Outlook**: The international raw sugar is bearish, and the domestic supply - demand is marginally loose [8]. Egg Industry - **Prices and Indicators**: The prices of eggs, egg - related products, and indicators such as the basis, spreads, and production costs changed. - **Market Outlook**: The demand may fluctuate, and the price may decline and then rise [11]. Cotton Industry - **Prices and Indicators**: The futures and spot prices of cotton, along with indicators such as the basis, spreads, and inventory, changed. - **Market Outlook**: The short - term price oscillates, and the long - term price may face pressure [14].

1. Report Industry Investment Rating - No information provided in the reports. 2. Core Views - The reports present data on various types of futures, including stock index futures, Treasury bond futures, precious metal futures, and container shipping futures, as well as related spot prices, spreads, and other indicators. They show the latest values, changes from the previous day, historical quantiles, and other information to help investors understand the market conditions of different futures products [1][2][4][6]. 3. Summary by Related Catalogs Stock Index Futures - **Price Spread Data**: The report provides detailed price spread data for IF, IH, IC, and IM stock index futures, including spot - futures spreads and inter - period spreads. For example, the IF spot - futures spread is - 7.84, with a change of 2.73 from the previous day, and the historical 1 - year quantile is 40.90% [1]. Treasury Bond Futures - **IRR and Basis**: Information on IRR, basis, and price spreads for TS, TF, T, and TL Treasury bond futures is given. For instance, the TS basis is 1.5781, with a change of 0.0115 from the previous day, and the historical quantile is 23.00% [2]. Precious Metal Futures - **Price and Spread**: It shows the closing prices of domestic and foreign precious metal futures, spot prices, and basis. For example, the AU2510 contract closed at 778.74 yuan/gram on July 24, down 1.79% from the previous day, and the gold TD - Shanghai gold main contract basis is - 3.64 [4]. Container Shipping Futures - **Spot and Futures Prices**: The report includes spot quotes for Shanghai - Europe container shipping, container shipping index data, futures prices, and basis. For example, the MAERSK spot price for Shanghai - Europe on July 25 is 3104 dollars/FEU, up 0.16% from the previous day, and the EC2602 futures contract price on July 24 is 1562.3, up 5.75% from the previous day [6]. Data and Information Calendar - **Domestic and Overseas Data**: It lists domestic and overseas economic data and events to be released, such as the US June durable goods orders monthly rate, and domestic 2000 billion yuan 1 - year MLF due on a certain day [9].

Group 1: Stock Index Futures Spread Daily Report Core Viewpoints - The report presents the latest values, changes from the previous day, 1 - year historical percentiles, and all - time percentiles of various stock index futures spreads and cross - variety ratios on July 22, 2025 [1]. Summary by Category - **Futures - Spot Spreads**: For example, the F futures - spot spread is - 20.81, down 4.06 from the previous day, with a 1 - year percentile of 30.70% and an all - time percentile of 21.70% [1]. - **Inter - delivery Spreads**: Such as the F inter - delivery spread, where the season - month minus the current - month is - 41.00, down 32.20, with a 1 - year percentile of 20.00% and an all - time percentile of 26.40% [1]. - **Cross - Variety Ratios**: For instance, the IC/IF ratio is 1.4898, up 0.0051, with a 1 - year percentile of 62.20% and an all - time percentile of 60.20% [1]. Group 2: Treasury Bond Futures Spread Daily Report Core Viewpoints - The report provides data on IRR, basis, inter - delivery spreads, and cross - variety spreads of treasury bond futures on July 22, 2025, including their changes and historical percentiles [2]. Summary by Category - **IRR**: The 15 - year IRR is 1.6099, down 0.0053 from the previous day, with a historical percentile of 24.90% [2]. - **Basis**: For example, the T basis is 1.5727, down 0.0409, with a historical percentile of 53.80% [2]. - **Inter - delivery Spreads**: Like the TS inter - delivery spread, the current - season minus the alternate - season is - 0.0080, with a historical percentile of 11.60% [2]. - **Cross - Variety Spreads**: Such as the TS - TF spread, which is - 3.5350 on July 22, 2025, up 0.0210, with a historical percentile of 8.10% [2]. Group 3: Precious Metals Futures - Spot Daily Report Core Viewpoints - The report shows the domestic and foreign futures closing prices, spot prices, basis, ratios, interest rates, exchange rates, inventory, and holdings of precious metals on July 22, 2025, along with their changes [4]. Summary by Category - **Futures Closing Prices**: The AU2510 contract closed at 781.70 yuan/gram on July 21, up 4.68 (0.60%) from July 18 [4]. - **Spot Prices**: The London gold price was 3396.67 dollars/ounce on July 21, up 47.01 (1.40%) from July 18 [4]. - **Basis**: The gold TD - Shanghai gold主力 basis is - 4.70, down 1.05, with a 1 - year percentile of 5.60% [4]. - **Ratios**: The COMEX gold/silver ratio is 86.91, down 0.42 (- 0.48%) [4]. - **Interest Rates and Exchange Rates**: The 10 - year US Treasury yield is 4.38%, down 0.06 (- 1.4%) [4]. - **Inventory and Holdings**: The SPRD gold ETF holding is 947 tons, up 3.44 (0.36%) [4]. Group 4: Container Shipping Industry Futures - Spot Daily Report Core Viewpoints - The report offers information on Shanghai - Europe future 6 - week freight rates, container shipping indices, futures prices, basis, and fundamental data on July 22, 2025 [7]. Summary by Category - **Freight Rates**: The CMA CGM's Shanghai - Europe future 6 - week freight rate is 4226 dollars/FEU on July 21, up 124 (3.78%) from July 20 [7]. - **Indices**: The SCFIS (European route) settlement price index is 2400.50 points on July 21, down 21.4 (- 0.89%) from July 14 [7]. - **Futures Prices and Basis**: The EC2602 contract closed at 1486.4 on July 21, down 8.7 (- 0.58%) from July 18, and the basis of the main contract is 956.5, down 22.1 (- 2.26%) [7]. - **Fundamental Data**: The global container shipping capacity supply is 3271.67 on July 22, unchanged from July 21 [7]. Group 5: Trading Calendar Core Viewpoints - The report lists overseas and domestic data and information release schedules on July 22, 2025, including various economic indicators and events [9]. Summary by Category - **Overseas Data**: Such as New Zealand's log exports [9]. - **Domestic Data**: For example, the inventory of manganese ore by variety and the throughput of manganese ore in Qinzhou Port for manganese - silicon [9].

1. Report Industry Investment Rating - Not provided in the documents 2. Core Viewpoints of the Report - The reports present daily data on various futures, including stock index futures, treasury bond futures, precious metal futures, and container shipping industry futures, as well as relevant spot prices, spreads, ratios, and other market - related information [1][2][4][6] 3. Summaries by Relevant Catalogs Stock Index Futures - **Price Spreads**: On July 18, 2025, the F period - spot spread was 19.60% with a change of - 22.69 compared to the previous day. The IC period - spot spread was - 104.46, a change of - 93.87. Different cross - period and cross - variety spreads also had specific values and changes [1] Treasury Bond Futures - **Price Spreads**: On July 18, 2025, the TS basis was 1.6630 with a change of - 0.0146. Different cross - period and cross - variety spreads of treasury bond futures also had corresponding values and changes [2] Precious Metal Futures - **Prices and Spreads**: On July 17, 2025, the AU2510 contract closed at 776.28 yuan/gram, a decrease of 0.38 compared to the previous day. The COMEX gold主力合约 closed at 3345.40 dollars/ounce, a decrease of 8.80. Different basis and price ratios also had specific values and changes [4] Container Shipping Industry Futures - **Spot Quotes**: On July 18, 2025, the Shanghai - Europe future 6 - week freight rate reference for MAERSK was 3066 dollars/FEU with no change. The SCFIS (European route) settlement price index on July 14 was 2421.94, an increase of 163.9 compared to July 7 [6] - **Fundamentals**: The global container shipping capacity supply on July 18 was 3271.40 million TEU with no change. The export punctuality rate (short - term) decreased by 18.66% [6] Data/Information Calendar - **Overseas**: On July 18, 2025, at 16:00, the euro - zone May seasonally adjusted current account (in billions of euros) was to be released; at 22:00, the US July one - year inflation rate expectation initial value and the US July University of Michigan consumer confidence index initial value were to be released [8] - **Domestic**: Various economic indicators of different industries such as agriculture, black and non - ferrous metals, energy and chemicals, and special commodities were to be released at different times [8]

Report Industry Investment Rating - Unilateral: Neutral [3] - Inter - period: Do reverse spreads on the MA09 - 01 inter - period spread when it is high [3] - Inter - variety: Narrow the PP01 - 3MA01 spread when it is high [3] Core View - Overseas methanol production remains at a high level, resulting in significant pressure on Chinese imports and a continuous inventory build - up at ports. The short - term reality at ports is weak, but the market anticipates a substantial scale of overseas gas - based methanol maintenance in the fourth quarter, leading to an optimistic long - term outlook. Inland coal - based methanol is undergoing short - term maintenance, reducing supply. Although the traditional downstream formaldehyde market is in a seasonal off - season, the开工 rates of MTBE and acetic acid are decent, indicating strong inland demand. As a result, the inventory build - up rate at inland methanol factories is slow, and the inland market is stronger than the port market [2] Summary by Directory 1. Methanol Basis & Inter - period Structure - The report presents multiple figures related to methanol basis, including methanol basis in Taicang, different regions' spot - to - futures basis, and inter - period spreads between different methanol futures contracts [6][10][21] 2. Methanol Production Profit, MTO Profit, and Import Profit - Figures show the production profit of inland coal - based methanol, MTO profit in East China, and import spreads such as the difference between Taicang methanol and CFR China, as well as price differences between CFR Southeast Asia, FOB US Gulf, FOB Rotterdam, and CFR China [25][33] 3. Methanol Production and Inventory - Information on methanol port total inventory, MTO/P production rate (including integrated plants), inland factory sample inventory, and China's overall methanol production rate (including integrated plants) is provided [35][37] 4. Regional Price Differences - The report provides data on regional price differences, such as the price difference between northern Shandong and the northwest, East China and Inner Mongolia, Taicang and southern Shandong, and other regions [39][45][48] 5. Traditional Downstream Profits - Figures display the production margins of traditional downstream products, including formaldehyde in Shandong, acetic acid in Jiangsu, MTBE isomerization etherification in Shandong, and dimethyl ether in Henan [55][57]

Report Industry Investment Rating - Unilateral: Neutral [3] - Inter - period: Do reverse spreads on the MA09 - 01 inter - period spread when it is high [3] - Inter - variety: Narrow the PP01 - 3MA01 spread when it is high [3] Core Viewpoints - Overseas methanol production is operating at a high level, and the pressure of methanol arriving at Chinese ports remains high, leading to a stockpiling cycle at ports. The Xingxing MTO maintenance plan is yet to be implemented. If it is carried out smoothly, port demand will be further affected. Although the short - term situation at ports is weak, the market expects a significant scale of overseas gas - based methanol maintenance in the fourth quarter, which makes the long - term outlook optimistic [2] - In the inland region, short - term maintenance of inland coal - based methanol has led to a decline in supply. Although the formaldehyde in traditional downstream industries is in a seasonal off - season, the operating rates of MTBE and acetic acid are acceptable. The demand in the inland region remains resilient, and the inventory rebuilding rate of inland methanol factories is still slow. The inland market is stronger than the port market [2] Summary by Directory I. Methanol Basis & Inter - period Structure - The report presents figures related to methanol basis in different regions (such as methanol in Taicang, Lunan, Inner Mongolia North Line, etc.) compared with the main futures contract, and inter - period spreads between different methanol futures contracts (such as 01 - 05, 05 - 09, 09 - 01) [6][10][21] II. Methanol Production Profit, MTO Profit, Import Profit - Figures show the production profit of Inner Mongolia coal - based methanol, the MTO profit in East China, and import spreads such as the difference between Taicang methanol and CFR China, as well as price differences between CFR Southeast Asia, FOB US Gulf, FOB Rotterdam and CFR China [25][28][29] III. Methanol Operating Rate, Inventory - The report provides data on methanol port total inventory, MTO/P operating rate (including integrated ones), inland factory sample inventory, and China's methanol operating rate (including integrated ones) [33][35] IV. Regional Price Differences - Figures display regional price differences such as Lubei - Northwest - 280, East China - Inner Mongolia - 550, Taicang - Lunan - 250, etc [37][44] V. Traditional Downstream Profits - Figures show the production gross margins of traditional downstream products such as Shandong formaldehyde, Jiangsu acetic acid, Shandong MTBE isomerization etherification, and Henan dimethyl ether [50][51]

Report Industry Investment Rating - Not provided in the content Core Viewpoints - BZ futures maintain a large premium, reflecting the contango structure of high - inventory pricing. The strong downstream demand for pure benzene has led to a decline in pure benzene port inventory from its high level. However, the supply pressure from South Korea's exports to China and high domestic production have kept the pure benzene processing fee in a weak consolidation. For styrene, the port inventory has further increased, and the EB basis has further declined. Domestic EB maintains high - level production, while the demand is dragged down by the low operation rates of EPS and PS [3]. Summary by Catalog 1. Pure Benzene and EB's Basis Structure, Inter - period Spread - Relevant data includes pure benzene's main basis, the spread between pure benzene spot and M2 paper goods, the spread between the first - and third - consecutive contracts of pure benzene, the trend and basis of the EB main contract, and the spread between the first - and third - consecutive contracts of styrene [8][12][17] 2. Production Profits and Domestic - Foreign Spreads of Pure Benzene and Styrene - It involves data such as naphtha processing fee, the price difference between pure benzene FOB South Korea and naphtha CFR Japan, the production profit of non - integrated styrene plants, and the import profits of pure benzene and styrene [21][23][28] 3. Inventory and Operation Rates of Pure Benzene and Styrene - Pure benzene's East China port inventory and operation rate are presented, along with styrene's East China port inventory, commercial inventory, factory inventory, and operation rate [34][36][39] 4. Operation and Production Profits of Styrene's Downstream - Data on the operation rates and production profits of EPS, PS, and ABS are provided [45][49][50] 5. Operation and Production Profits of Pure Benzene's Downstream - Information includes the operation rates and production profits of caprolactam, phenol - acetone, aniline, adipic acid, PA6, nylon filament, bisphenol A, PC, epoxy resin E - 51, pure MDI, and polymer MDI [53][57][64] Strategies - Unilateral: Observe pure benzene and styrene [4] - Basis and Inter - period: For near - month BZ paper goods and far - end BZ2603 futures, conduct reverse arbitrage when the price is high [4] - Cross - variety: Shrink the EB - BZ price difference when it is high [4]