# Several insiders buying — NSE scan

> Two or more promoters, directors or KMPs bought in the open market in the last 90 days, and insiders as a whole bought more than they sold.

Canonical: https://patternsradar.com/screener/insider-cluster-buying

```sift
where insider_buyers_90d >= 2
  and insider_net_buy_value_90d > 0
```

One director buying can be a routine top-up or a signal of confidence. Two or more insiders buying in the same three months is harder to explain away, which is why cluster buying is the version of insider buying most of the research leans on. The second condition keeps out the stocks where a director bought while the promoter sold a larger amount. ESOP allotments, gifts and transfers inside the promoter group are left out of both counts, since none of them is anyone choosing to pay the market price.

Category: [Fundamentals](https://patternsradar.com/scans/fundamentals.md). Default universe: top 1000 by 20-day turnover.

More fundamentals: [Promoters buying](https://patternsradar.com/screener/promoter-buying.md), [Promoters selling](https://patternsradar.com/screener/promoter-selling.md), [Promoters buying in the open market](https://patternsradar.com/screener/promoter-market-buying.md), [High promoter holding in an uptrend](https://patternsradar.com/screener/high-promoter-holding.md), [Institutions on both sides](https://patternsradar.com/screener/institutional-ownership.md).

The rendered page runs this scan against the latest session and can replay it across the last 250 sessions to measure its hit rate: https://patternsradar.com/screener/insider-cluster-buying.

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Price and delivery data from the [eod2](https://github.com/BennyThadikaran/eod2) dataset: National Stock Exchange of India end-of-day files, split- and bonus-adjusted, updated after each close. Not affiliated with or endorsed by NSE. PatternsRadar is a research tool. Nothing here is investment advice or a recommendation to buy or sell anything.