商业投资提振，美国二季度实际GDP年化季环比上调至3.3%，PCE物价指数2.5%

Group 1 - The core viewpoint of the article highlights the upward revision of the U.S. second-quarter GDP growth, primarily driven by improved business investment and significant trade contributions [1][4] - Business investment growth was revised from an initial 1.9% to 5.7%, reflecting enhanced investments in software and transportation equipment [4] - Net exports contributed nearly 5 percentage points to GDP growth, marking the highest level on record, contrasting with the previous quarter where net exports had a negative impact [4][9] Group 2 - Consumer spending showed resilience with a second-quarter annualized growth rate of 1.6%, up from the initial estimate of 1.4%, contributing 1.07 percentage points to GDP growth [5][6] - The real final sales to private domestic purchasers, a key indicator of consumer demand, grew at a steady rate of 1.9% for two consecutive quarters, indicating stable underlying demand [5][6] - Retailers, including Walmart and Home Depot, expressed optimism about consumer resilience despite rising prices due to tariffs [5] Group 3 - The revised second-quarter actual GDP annualized quarter-on-quarter growth rate was 3.3%, exceeding expectations of 3.1% and the previous value of 3% [7] - The core Personal Consumption Expenditures (PCE) price index for the second quarter remained steady at 2.5%, aligning with initial estimates [7][12] Group 4 - Domestic Gross Income (GDI) surged by 4.8% in the second quarter, contrasting sharply with a mere 0.2% increase in the first quarter, indicating a rebound in economic activity [11] - Corporate profits increased by 1.7% in the second quarter, reversing the largest decline since 2020 recorded in the first quarter [11] - The share of after-tax profits of non-financial corporations remained stable at 15.7%, significantly higher than pre-pandemic levels, suggesting robust profitability [11]