金融工程日报：A股探底回升，AI应用题材拉升、煤炭股再度走强-20251103

• The report does not contain any specific quantitative models or factors for analysis [2][3][6] - The report primarily focuses on market performance, sentiment, fund flows, ETF premiums/discounts, block trading discounts, and index futures basis rates [2][3][6][22][25][28] - Quantitative metrics such as ETF premiums/discounts, block trading average discount rates, and index futures annualized basis rates are calculated and presented [22][25][28] - ETF premiums/discounts are calculated based on the difference between trading prices and NAV, reflecting investor sentiment [22] - Block trading discount rates are calculated using the formula: $ \text{Discount Rate} = \frac{\text{Block Trading Total Transaction Amount}}{\text{Total Market Value of Traded Shares}} - 1 $ [25] - Index futures annualized basis rates are calculated using the formula: $ \text{Annualized Basis Rate} = \frac{\text{Basis}}{\text{Index Price}} \times \left(\frac{250}{\text{Remaining Trading Days of Contract}}\right) $ [28] - Metrics such as ETF premiums/discounts, block trading discount rates, and index futures basis rates are used to gauge market sentiment and expectations [22][25][28]