In the Bulk/Block deals section, FYERS groups large and important trades into three categories: Bulk deals, Block deals, and Insider trading & SAST.
Each tells a different story about who traded, how big the trade was, and why it matters.
Explanation
- Bulk deals show large trades executed during normal market hours.
- Block deals show very large trades executed in a special exchange window.
- Insider trading & SAST shows trades and disclosures made by promoters, insiders, and major shareholders.
Bulk deals
- A bulk deal happens when a single trade is 0.5% or more of a company’s total shares.
- These trades happen during regular market hours.
- Bulk deals are often done by institutions like mutual funds or FIIs.
- They can move the stock price because of their size.
Block deals
- A block deal is a very large trade, usually worth ₹10 crore or more.
- It happens in a separate trading window decided by the exchange.
- The price is fixed between buyer and seller before the trade.
- Block deals reduce sudden price swings in the open market.
Insider trading & SAST
- This includes trades by promoters, directors, key management, and large shareholders.
- SAST disclosures are required when shareholding crosses certain percentage limits.
- These trades are reported to the exchange after they happen.
- They help investors track changes in promoter or insider ownership.
FYERS Web
Path: Markets → Analytics → Bulk/Block deals
- Select Bulk deals, Block deals, or Insider trading & SAST at the top.
- Use Universe (for example, Nifty 100) to limit the stocks shown.
- Change the Date range to view older or recent deals.
- Click a row to understand who traded, how much, and the deal value.
FYERS App
Path: Markets → Analytics → Bulk/Block deals
- Tap Bulk deals, Block deals, or Insider trading & SAST.
- Use the filter icon to change Universe or Date range.
- Scroll the table to see client name, action (buy/sell), stake traded, and deal value.
Notes
- Bulk and block deals show large market transactions, not regular trades.
- Insider & SAST data is disclosure based and may appear after the trade date.
- A large deal does not always mean bullish or bearish intent; context matters.
What if…
| Situation | What to do / How to read it |
|---|
| Same stock appears multiple times | Large trades can be split across multiple entries or reported as revised disclosures. |
| Insider trade shows Disposal | This means the insider or promoter has sold shares, reducing their holding. |
| Block deal price differs from market price | Block deals are pre negotiated and may be at a premium or discount. |
Last updated: 19 Dec 2025