reddit · SideProject · 10-21 19:50 50 分 ← 返回列表

I built a free tracker that shows which executives are buying their own company’s stock (from SEC filings)

Company insiders (CEOs, CFOs, directors) have to report their stock trades to the SEC within two business days, in a form called Form 4. The data is public but painful to read, so I built a site that does it for me: insidercluster.net What it does Reads every Form 4 filed each weekday and keeps only real open-market buys and sells (no option exercises, grants or gifts) Flags cluster buying : 3+ different insiders buying the same stock within 30 days Scores each purchase by si

五维评分

付费意愿

需求真实度

个人可落地

竞争空间

新鲜度

AI 分析

痛点：SEC Form 4 的内部人交易数据虽然是公开的，但原始文件难以阅读，普通投资者很难从海量 filings 中筛出真正的内部人集中买入信号。

目标用户：关注内部人交易信号的散户投资者、价值投资者、量化选股爱好者

证据：The data is public but painful to read, so I built a site that does it for me. / Flags cluster buying: 3+ different insiders buying the same stock within 30 days / I’d love feedback on what’s useful, what’s confusing, or what you’d want added.

变现：免费基础页 + 付费订阅：实时/即时邮件或 Telegram 提醒、按评分和角色筛选的高级过滤器、自选股监控、API 或数据导出；也可做 affiliate 券商返佣

MVP：用 Python 抓取 SEC EDGAR 的 Form 4，过滤只保留公开市场买卖，按金额/角色/持股增幅打简单分数，生成静态股票页 + 每周 Digest 邮件；先做免费版收集订阅名单，再加 9-19 美元/月的实时提醒付费墙

竞品：OpenInsider、Insider Monkey、secform4.com、Finviz Insider Trading、Seeking Alpha Insider Trades、MarketBeat Insider Trades

摘要：作者用 Python 抓取 SEC EDGAR 的 Form 4，做了一个免费网站 insidercluster.net，只保留真实公开市场买卖，标记 30 天内 3 名以上内部人集中买入并给出可解释评分，部署在 GitHub Pages 上，零成本。数据清洗是最大难点（有人把总金额填进每股价格字段，导致 230 万美元的买入被算成 10 万亿美元）。帖子只是求反馈，没有任何收入或付费意愿证据，且 OpenInsider、Insider Monkey 等成熟竞品已占位。