What problem does it solve?
This Skill helps you systematically evaluate and compare ETFs so you can choose products that match your investment goal while controlling tracking error, fees, liquidity risk, and premium/discount behavior.
Core Features & Use Cases
- ETF classification &结构理解: Break down ETFs by underlying assets and structure (plain, LOF,联接基金,杠杆/反向) to avoid mismatched use cases.
- Core metrics framework: Compute and interpret tracking error, information ratio, 折溢价率, liquidity indicators, and fee drag for decision-grade comparisons.
- Quant decision models & strategies: Provide a repeatable selection/scoring approach plus portfolio construction (core-satellite), rotation ideas, factor exposure analysis, and practical ETF套利 logic.
- China market operational considerations: Address A-share ETF mechanics, QDII-specific risks (limits and FX), and how these affect implementation and expectations.
- Data-driven templates (Tushare-based): Offer code templates for retrieving ETF list/nav/daily/index data and calculating tracking error, premium/discount monitoring, and fund flow approximations.
Quick Start
Ask to analyze the ETFs tracking the same index by comparing规模、费率、近1年跟踪误差、日均成交额与买卖价差, then output a ranked recommendation for your intended holding period.