Published on: October 6, 2025
Raj: You know, Meera, these days everyone talks about technical setups — breakouts, chart patterns, RSI, all of that. But what really fascinates me is what the big players are doing behind the scenes — the Bulk, Block, and Insider deals.
Meera: (smiling) Ah, the “silent signals” of the market!
You are absolutely right. These deals often reveal where the smart money is moving. However, most retail traders either ignore them or, worse still, blindly follow them without context.
Raj: True. Let’s break this down properly — like we do during our research sessions. Let’s start with Bulk Deals.
Bulk Deals — When Big Hands Move
Meera: Bulk deals are like footprints left by elephants. As per SEBI’s definition, whenever a transaction crosses 0.5% of a company’s total shares in a single day, it qualifies as a bulk deal.
Raj: Exactly. These can be executed as a single large order or multiple trades spread throughout the day, as long as the total crosses 0.5%.
Meera: The interesting part is that these deals are transparent. They are reported on the exchange website, allowing anyone to see them.
Raj: And that’s where retail traders often get excited. “XYZ Mutual Fund bought 10 lakh shares of ABC Ltd!” Suddenly, everyone wants to jump in.
Meera: (laughs) Yes! But that’s where caution is required. Bulk buying by a fund may reflect confidence, but it could also be a result of portfolio rebalancing. Similarly, bulk selling may not always be a negative aspect.
Raj: Absolutely. Bulk deals should be treated as information, not a recommendation. Combine them with your fundamental and technical research, that’s when they add value.
Block Deals — The Silent Pacts of Big Players
Meera: Now, block deals, they are a different ball game altogether.
Raj: Yes, these are more like private agreements between two heavyweight investors. The minimum deal value is ₹10 crore, and they happen in a special 15-minute window — once in the morning and again in the afternoon.
Meera: That’s right. The idea is to prevent such large trades from disturbing the normal price movement on the exchange.
Raj: Often, these block deals happen between promoters and institutions, or two mutual funds, who have already agreed on a price beforehand.
Meera: And when you track these, it tells you a story. If a reputable foreign fund is buying from a promoter, it may indicate a shift in confidence in ownership.
Raj: But again, like you said earlier, context is everything. A single block deal doesn’t define the company’s future. It’s the pattern and consistency that matter.
Insider Deals — When the Core Knows More
Meera: Now comes the most sensitive part — Insider Deals.
Raj: Yes, these are transactions by the company’s own insiders: promoters, directors, key managerial personnel, or even their close relatives.
Meera: SEBI has made it mandatory for all insider trades to be reported to the exchange. That means even we, sitting here in this cafe, can see what insiders are doing with their own company’s stock.
Raj: If a promoter is buying from the open market, that usually signals confidence in the company’s growth story.
Meera: But if they are selling, investors must look deeper. Sometimes it’s just for personal reasons, such as funding another venture, paying taxes, or fulfilling family obligations.
Raj: I recall a case where a promoter sold shares to fund a hospital project. Everyone panicked, but the stock later doubled in value.
Meera: Exactly. Insider activity is insightful, but you must always examine the reasons and timing behind it.
Tracking These Deals on Radar — Simplifying the Hunt
Raj: You know what I love about platforms like Radar in Definedge?
They have made tracking all this so simple. Earlier, we used to dig through exchange PDFs and spend hours.
Meera: (nodding) Oh yes! Now, you can just go to Radar → Tools → Bulk Block Insider Deals and get everything in one place.
Raj: For Bulk and Block Deals, you can:
- Select your date range and transaction type (buy/sell).
- Search by company or client name.
- Even filter by market groups — like Nifty 500 or Auto Ancillary sector.
Meera: And for Insider Deals, it’s even more detailed:
- You can filter by insider category — Director, Promoter Group, Relative, etc.
- Choose transaction mode — Market Purchase, Gift, Pledge, or Off-Market.
- And again, search by company or group.
Raj: This kind of transparency helps investors understand where informed capital is moving. It adds another dimension to research — one beyond charts and ratios.
Final Sip — The Takeaway for Indian Traders
Meera: You know, Raj, at the end of the day, it’s all about interpreting these signals correctly.
Raj: Absolutely. Indian retail traders often get emotional when they see big names buying or selling. But markets are more nuanced.
Meera: True. Bulk, Block, and Insider deals are not “buy” or “sell” tips. They are like puzzle pieces, useful only when you see the full picture.
Raj: Well said. Combine them with your financial analysis, study the trend, understand the company, and then decide.
Meera: (smiling) As they say in Mumbai — thoda research karo, fir invest karo!
Raj: (laughs) And maybe another chai before the market closes?
