每日钉一下（上市公司的定期报告何时披露，又如何查询呢？）

Group 1 - The article discusses the advantages of systematic investment plans (SIPs) in mutual funds, particularly for those who prefer a hands-off investment approach [2] - It emphasizes the importance of preparing before starting a SIP, including creating a well-defined investment plan [2] - The article introduces four different SIP methods and encourages readers to identify which method suits them best, along with strategies for profit-taking [2] Group 2 - The article outlines the schedule for periodic financial reports of listed companies, which is crucial for investors to monitor company performance [6] - A formula is provided to summarize the sources of returns from index funds: Index Fund Net Value = Valuation × Earnings + Dividends, highlighting the significance of earnings growth in driving long-term index appreciation [6] - A comparison is made between A-share and Hong Kong stock periodic report disclosures, noting that A-shares have stricter reporting timelines compared to Hong Kong stocks [7][9]