Core Insights - Berkshire Hathaway disclosed its Q2 holdings report, revealing a reduction in its stake in Apple and the unveiling of a "mystery holding" [1] - The company reduced its Apple shares by 20 million, approximately 6.67%, while still maintaining it as its largest holding [1] - Additionally, Berkshire sold 26.3 million shares of Bank of America, a reduction of about 4.17% [1] New Investments - Berkshire initiated positions in six new stocks across various sectors, including healthcare, steel, and real estate, with a total market value of approximately $3.65 billion at the end of the quarter [2] - Notable new purchases include over 5 million shares of UnitedHealth (valued at about $1.57 billion), over 6.6 million shares of Nucor Steel (valued at about $860 million), and over 700,000 shares of Lennar (valued at about $780 million) [2] - The new investments are considered defensive plays with potential for valuation recovery, aligning with Buffett's "moat" investment philosophy [2] Increased Holdings - In Q2, Berkshire increased its stake in Chevron by approximately 3.45 million shares and added to its positions in Constellation Brands (about 1.39 million shares) and Pool Corporation (nearly 2 million shares) [2] - The company also made slight increases in its holdings in aerospace company Heico and Domino's Pizza [2] Financial Performance - Berkshire's Q2 net profit for 2025 was reported at $12.37 billion, reflecting a significant year-over-year decline of 59.24% [3]

Market Overview - The S&P 500 index reached a new all-time high for the third consecutive trading day, while the Dow Jones and Nasdaq experienced slight declines [1] - The latest PPI data in the U.S. exceeded expectations, leading traders to reduce bets on a rate cut by the Federal Reserve next month [1] - The two-year Treasury yield rose by two basis points to 3.69%, reversing earlier declines [1] U.S. Economic Indicators - The PPI increased by 0.9% month-over-month and 3.3% year-over-year, marking the highest inflation rate in three years, driven by a surge in service costs [6] - Initial jobless claims decreased by 3,000 to 224,000, indicating that employers are reluctant to lay off workers [7] - The average rate for a 30-year fixed mortgage fell to 6.58%, the lowest since October of the previous year [8] Company-Specific News - Berkshire Hathaway reduced its stake in Apple by 20 million shares while establishing new positions in UnitedHealth and Nucor [8] - Hillhouse Capital's HHLR Advisors reported a total market value of $3.105 billion, with over 90% in Chinese stocks, highlighting a strong preference for quality Chinese assets [9] - The Trump administration is negotiating a potential investment in Intel to support its domestic manufacturing efforts [10] - Apple Watch's blood oxygen tracking feature has returned to the U.S. market after a legal dispute, now allowing data to be displayed on paired iPhones [11]

Market Performance - The CSI Hong Kong Stock Connect Healthcare Index increased by 0.6%, while the CSI Hong Kong Stock Connect Internet Index decreased by 0.02%, the CSI Hong Kong Stock Connect Consumer Theme Index fell by 0.2%, the Hang Seng New Economy Index dropped by 0.4%, and the Hang Seng Technology Index declined by 1.0% [1] - The E Fund Hang Seng Technology ETF (513010) saw a net inflow of over 1.5 billion yuan in the past month, with its latest scale surpassing 14 billion yuan [1] Earnings Reports - Hong Kong stocks are entering a peak period for interim earnings disclosures, with Tencent Holdings reporting a 15% year-on-year revenue growth to 184.5 billion yuan, exceeding market expectations of 178.94 billion yuan [1] - NetEase and JD.com are scheduled to announce their earnings after the market closes today, followed by Xiaomi, Baidu, and Kuaishou next week [1] ETF Performance - The Hang Seng New Economy ETF decreased by 0.4%, with a rolling P/E ratio of 24.1 times and a valuation percentile of 51.0% since its inception in 2018 [2] - The E Fund Hang Seng Technology ETF fell by 1.0%, with a rolling P/E ratio of 22.1 times and a valuation percentile of 23.6% since its launch in 2020 [2] - The Hong Kong Stock Connect Healthcare ETF increased by 0.6%, with a rolling P/E ratio of 31.6 times and a valuation percentile of 48.9% since its inception in 2017 [2] - The Hong Kong Stock Connect Internet ETF decreased by 0.2%, with a rolling P/E ratio of 21.4 times and a valuation percentile of 60% since its launch in 2020 [4]

Group 1 - The S&P 500 and Nasdaq indices reached record highs, reflecting optimism about the Federal Reserve's upcoming monetary easing cycle, although some core tech stocks showed signs of fatigue after a strong rally [1][3] - Not all tech giants are under pressure; Apple rose 1.6% due to its expansion into AI robotics, home security, and smart display markets, indicating potential new growth opportunities [3][4] - The healthcare sector led gains in the S&P 500, rising 1.6%, while small-cap stocks in the Russell 2000 index increased nearly 2%, suggesting a shift in investment focus beyond the tech sector [3][4] Group 2 - The FedWatch tool indicates that traders have fully priced in a 25 basis point rate cut at the next Federal Reserve meeting, suggesting that expectations for easing have been absorbed [3][4] - DLSM Forex anticipates two potential trends in capital flows: one pursuing high-growth tech leaders despite high valuations, and another shifting towards reasonably valued traditional sectors like healthcare and utilities [4] - The market's focus may shift from "valuation stories" to "earnings realities" as the Fed's rate cut approaches and corporate earnings reports are released, influencing future capital allocation in the U.S. stock market [4]

Quantitative Models and Construction Methods 1. Model Name: Southbound Capital Monthly Net Purchase Model - **Model Construction Idea**: This model uses the monthly net purchase amount of Southbound Capital to evaluate its effectiveness in driving sector rotation in the Hong Kong stock market[12][40]. - **Model Construction Process**: - The net purchase amount for each stock is calculated as: $$ S_{i,t} = (N_{i,t} - N_{i,t-1}) * P_{i,t} $$ Where: \( N_{i,t} \) = Southbound Capital holdings of stock \( i \) on day \( t \)[37] \( P_{i,t} \) = Average price of stock \( i \) on day \( t \)[37] - The sector-level net purchase amount is aggregated as: $$ Ind_{t} = \sum S_{i,t} $$ Where \( Ind_{t} \) represents the cumulative net purchase amount for the sector on day \( t \)[37]. - **Model Evaluation**: The model demonstrates a positive Rank IC mean, indicating its effectiveness in sector rotation strategies[40]. 2. Model Name: Market Cap-Adjusted Southbound Capital Model - **Model Construction Idea**: Adjust the Southbound Capital net purchase amount by sector market capitalization to improve strategy performance[40]. - **Model Construction Process**: - The net purchase amount is calculated as in the previous model. - Adjustments are made based on the market capitalization of each sector to normalize the influence of large-cap sectors[40]. - **Model Evaluation**: This adjustment improves strategy returns and reduces maximum drawdown compared to the unadjusted model[46][48]. 3. Model Name: Three-Year Percentile Southbound Capital Model - **Model Construction Idea**: Use the three-year percentile rank of Southbound Capital net purchases to identify sector preferences over a longer historical period[40]. - **Model Construction Process**: - Calculate the three-year percentile rank of the net purchase amount for each sector. - Rank sectors based on their percentile values to determine rotation preferences[40]. - **Model Evaluation**: The three-year percentile model provides a longer-term perspective but shows slightly lower Rank IC values compared to the unadjusted model[40]. 4. Model Name: Market Cap-Adjusted Three-Year Percentile Model - **Model Construction Idea**: Combine market capitalization adjustments with the three-year percentile rank to enhance strategy robustness[40]. - **Model Construction Process**: - Apply market cap adjustments to the three-year percentile rank of net purchases. - Rank sectors based on the adjusted values to guide rotation decisions[40]. - **Model Evaluation**: This model achieves the best overall performance, with the highest Sharpe ratio and IR among all tested strategies[46][48]. --- Model Backtest Results 1. Southbound Capital Monthly Net Purchase Model - **Annualized Return**: 4.73% - **Excess Return**: 3.22% - **Maximum Drawdown**: 56.01% - **Sharpe Ratio**: 0.3130 - **IR**: 0.3864[52] 2. Market Cap-Adjusted Southbound Capital Model - **Annualized Return**: 5.40% - **Excess Return**: 3.89% - **Maximum Drawdown**: 50.24% - **Sharpe Ratio**: 0.3384 - **IR**: 0.3901[52] 3. Three-Year Percentile Southbound Capital Model - **Annualized Return**: 3.61% - **Excess Return**: -2.05% - **Maximum Drawdown**: 54.33% - **Sharpe Ratio**: 0.2704 - **IR**: 0.1498[52] 4. Market Cap-Adjusted Three-Year Percentile Model - **Annualized Return**: 7.99% - **Excess Return**: 2.33% - **Maximum Drawdown**: 45.84% - **Sharpe Ratio**: 0.4350 - **IR**: 0.4713[52] --- Quantitative Factors and Construction Methods 1. Factor Name: Southbound Capital Monthly Net Purchase - **Factor Construction Idea**: Measure the monthly net purchase amount of Southbound Capital to assess its impact on sector rotation[40]. - **Factor Construction Process**: - Calculate the net purchase amount for each stock and aggregate it at the sector level as described in the model construction process[37]. - **Factor Evaluation**: The factor shows a positive Rank IC mean, indicating its predictive power for sector rotation[40]. 2. Factor Name: Market Cap-Adjusted Southbound Capital - **Factor Construction Idea**: Adjust the net purchase amount by sector market capitalization to reduce bias from large-cap sectors[40]. - **Factor Construction Process**: - Apply market cap adjustments to the net purchase amount as described in the model construction process[40]. - **Factor Evaluation**: The adjustment improves the factor's effectiveness, as evidenced by higher Rank IC values[40]. 3. Factor Name: Three-Year Percentile Southbound Capital - **Factor Construction Idea**: Use the three-year percentile rank of net purchases to capture longer-term sector preferences[40]. - **Factor Construction Process**: - Calculate the three-year percentile rank for each sector's net purchase amount[40]. - **Factor Evaluation**: The factor provides a longer-term perspective but shows slightly lower Rank IC values compared to the unadjusted factor[40]. 4. Factor Name: Market Cap-Adjusted Three-Year Percentile - **Factor Construction Idea**: Combine market cap adjustments with the three-year percentile rank to enhance factor robustness[40]. - **Factor Construction Process**: - Apply market cap adjustments to the three-year percentile rank as described in the model construction process[40]. - **Factor Evaluation**: This factor achieves the best overall performance, with the highest Rank IC values among all tested factors[40]. --- Factor Backtest Results 1. Southbound Capital Monthly Net Purchase Factor - **Rank IC Mean**: 7.72% - **Rank IC t-Value**: 24.31%[41] 2. Market Cap-Adjusted Southbound Capital Factor - **Rank IC Mean**: 5.15% - **Rank IC t-Value**: 15.66%[41] 3. Three-Year Percentile Southbound Capital Factor - **Rank IC Mean**: 4.13% - **Rank IC t-Value**: 12.75%[41] 4. Market Cap-Adjusted Three-Year Percentile Factor - **Rank IC Mean**: 4.55% - **Rank IC t-Value**: 14.82%[41]

Summary of Key Points Core Viewpoint - The trading volume of the Shanghai and Shenzhen Stock Connect reached a total of 285.28 billion, with Cambricon and CATL leading in individual stock trading volume. The banking sector saw the highest net inflow of funds, while the Standard & Poor's Consumer ETF experienced a significant increase in trading volume. Group 1: Trading Volume and Key Stocks - The total trading amount for the Shanghai Stock Connect was 136.15 billion, while the Shenzhen Stock Connect was 149.14 billion [2] - Cambricon ranked first in the Shanghai Stock Connect with a trading amount of 2.64 billion, followed by Haiguang Information and Kweichow Moutai [2][3] - CATL led the Shenzhen Stock Connect with a trading amount of 4.66 billion, followed by Zhongji Xuchuang and Dongfang Caifu [2][3] Group 2: Sector Performance - The banking sector had the highest net inflow of funds at 290 million, followed by the semiconductor sector with 226 million [4] - The defense and military sector saw the largest net outflow of funds at 10.3 billion, indicating a significant decline in investor interest [5] Group 3: Individual Stock Fund Flows - CATL had a net inflow of 1.44 billion, leading the individual stocks, followed by Huasheng Tiancheng and Zhongke Shuguang [6] - Longcheng Military experienced the highest net outflow of 1.55 billion, indicating a strong sell-off [7] Group 4: ETF Trading Activity - The Standard & Poor's Consumer ETF saw a remarkable increase in trading volume, growing by 655% compared to the previous trading day [9] - The top ten ETFs by trading volume included the Hong Kong Securities ETF and the Hong Kong Innovative Drug ETF [8] Group 5: Futures Market Activity - In the futures market, the main contracts saw an increase in long positions, particularly in the IF contract, where the number of long positions significantly exceeded short positions [10] Group 6: Institutional and Retail Trading - Institutional buying was active in stocks like Innovation Medical and Youfang Technology, with significant purchases exceeding 80 million [11][12] - Retail trading saw notable activity in stocks like Changcheng Military and Beiwai Technology, with substantial sell-offs [12][14]

美国最新CPI数据显示，整体通胀持稳但呈现出复杂信号。7月美国CPI同比上涨2.7%，与6月持平，略 低于市场预期的2.8%。环比上涨0.2%，符合市场预期。 ·服务类通胀依然高企，尤其是在住宿、医疗保健和航空运输等领域。 ·能源价格下降：汽油价格7月下跌2.2%，同比下降9.5%。 ·食品通胀整体持平——杂货价格小幅下降，但餐饮价格上涨0.3%。年度食品通胀率为2.9%。 市场与政策影响 华尔街对此反应积极——标普500、纳斯达克和道琼斯等主要股指均录得上涨，因数据表明通胀仍在可 控范围内，或为美联储9月降息提供合理性。 利率掉期市场数据显示，投资者目前押注美联储在9月降息25个基点的概率超过90%，并预计2025年可 能累计降息多达三次（CME FedWatch数据）。 | | | | | | | CME FEDWATCH TOOL - CONDITIONAL MEETING PROBABILITIES | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | MEETING DATE ...

Group 1: Inflation Data Overview - In July 2025, the US CPI increased by 2.7% year-on-year, matching the previous value and below the market expectation of 2.8%[6] - Core CPI rose by 3.1% year-on-year, up from 2.9% previously and slightly above the expected 3.0%[6] - The month-on-month CPI growth rate decreased to 0.2%, while core CPI increased to 0.3%[9] Group 2: Inflation Components - Food CPI growth rate was flat at 0.0% month-on-month, with household food prices declining and non-household food price increases narrowing[9] - Energy CPI month-on-month growth significantly slowed to -1.1%, with both energy goods and services prices turning negative[9] - Core goods inflation pressure remains limited, with core goods CPI month-on-month growth steady at 0.2%[9] Group 3: Housing and Services Inflation - Housing inflation remained stable, contributing 0.07 percentage points to the overall CPI increase, with rent and equivalent rent showing slight increases[9] - Core services CPI month-on-month growth rose to 0.4%, driven by significant increases in transportation and healthcare services[9] - Overall, core services inflation shows upward pressure, particularly in healthcare due to potential tariff impacts[9] Group 4: Interest Rate Outlook - The market's expectation for a September rate cut by the Federal Reserve strengthened, with the probability rising from 85.9% to 92.2% following the CPI data release[9] - Short-term outlook suggests a high likelihood of a rate cut in September, with December also being a probable event due to ongoing economic conditions[9] - The "Great American Rescue Plan" may support the economy but will not alter the trend towards a soft landing, necessitating rate cuts for effective policy implementation[9]

Market Performance - On August 13, A-shares and Hong Kong stocks continued their strong performance, with major indices rising simultaneously and trading activity significantly increasing [1][2] - The Shanghai Composite Index rose by 0.56% to 3686.34 points, marking a new high since December 2021; the Shenzhen Component increased by 1.47%, and the ChiNext Index surged by 2.81% [2] - The Hong Kong market also saw gains, with the Hang Seng Index up by 1.88% to 25439.91 points, and the Hang Seng Technology Index rising by 2.35% [2] Leading and Lagging Sectors - In the A-share market, sectors such as telecommunications, non-bank financials, and non-ferrous metals led the gains, with increases of 3.83%, 1.99%, and 1.79% respectively [3] - The telecommunications sector benefited from rapid AI hardware development, while non-bank financials were supported by a margin financing balance exceeding 2 trillion yuan and a 36.9% year-on-year increase in new account openings from January to July [3] - Conversely, traditional cyclical and consumer sectors lagged, with coal down by 0.64% and textiles down by 0.55% [3] Investment Recommendations - The current market is characterized by "incremental capital-driven, policy and industrial logic resonance," with continuous increases in trading volume and margin financing balances reaching new highs [5] - Short-term strategies should focus on sectors with significant capital movement and trend breakthroughs, such as AI hardware, brokerage firms, and consumer electronics, while avoiding traditional cyclical products under pressure [5] - Mid-term investment should target three main lines: the broad technology sector benefiting from global model iterations and domestic replacements, new consumption driven by policy incentives in automotive, elderly care, and medical sectors, and non-ferrous metals driven by industrial upgrades and new energy demand [5]

Group 1 - Kangji Medical (09997) resumed trading with a nearly 1% increase, announcing a privatization agreement with Knight Bidco Limited, which will make Kangji a wholly-owned subsidiary and delist from the Hong Kong Stock Exchange after completion [1] - Tencent Music (01698) opened high with over a 15% increase, reporting a 30% year-on-year increase in adjusted net profit for Q2 ending June 30, 2025, driven by high-quality growth in its online music business [1] - Mingyuan Cloud (00909) opened over 2% higher, announcing a cash acquisition of 100% equity in ASIOT Co., Ltd. for 700 million yen by its subsidiary MytePro Japan [1] Group 2 - Yuedu Group (00772) surged over 15%, reporting a 68.5% year-on-year increase in net profit for the first half of the year, with strong performance in IP for premium films and animations, and significant growth in the emerging short drama sector [2] - Minmetals Resources (01208) rose over 9%, with net profit increasing 15 times year-on-year, attributed to higher copper production and rising prices of copper, gold, silver, and zinc [2] - Beihai Kangcheng-B (01228) increased over 31%, announcing a strategic cooperation agreement with Baiyang Pharmaceutical for exclusive commercial services in promoting several products in mainland China, Hong Kong, and Macau [2] Group 3 - Zhonghui Biotech-B (02627) surged over 25%, as its vaccine product was included in the preliminary review list of the national commercial health insurance innovative drug catalog [2] - Gilead Sciences-B (01672) rose over 5%, announcing promising efficacy results for its candidate drug ASC47 in combination with teriparatide for obesity treatment in diet-induced obesity mouse studies [3] - Dongying Travel (06882) fell over 9%, issuing a profit warning with expected net profit of approximately 6 million HKD for the first half of 2025, down about 82% from 34 million HKD in the same period last year [3] Group 4 - Kodak (KODK.US) dropped 19.91% after reporting a shift from profit to loss in Q2, raising concerns about its ability to execute critical financing measures [4] - Niu Technologies (NIU.US) rose 11.69%, reporting a turnaround to profitability in Q2 and projecting Q3 revenue between 1.433 billion to 1.638 billion CNY, a year-on-year increase of 40% to 60% [4] - Huya (HUYA.US) increased by 4.53%, preparing to release its financial report, with a strong growth trajectory in gaming-related services [4] Group 5 - ON Running (ONON.US) rose 8.95%, reporting a 32% year-on-year increase in Q2 sales and projecting annual net sales of at least 2.91 billion Swiss francs, exceeding previous expectations [6] - Micron Technology (MU.US) increased by 3.26%, significantly raising its Q4 fiscal year 2025 revenue guidance to between 11.1 billion to 11.3 billion USD, with gross margin guidance improved to 44% to 45% [6]