Volume is the business. The market cycle sets revenue, not the company.
Exchanges, depositories and brokers all earn a small fee every time someone trades, so their revenue rises and falls with market volumes, which they do not control. A bull market floods them with income; a bear market drains it just as fast. The best of them own a structural moat, a licensed depository like CDSL is a near-monopoly, and increasingly they diversify into recurring, fee-based income like asset management that keeps paying through the cycle. Watch revenue yield, because zero-brokerage disruption has been quietly compressing what each trade earns for years.
Capital markets companies are the plumbing behind every trade, investment and mutual fund SIP in India: exchanges that match buyers and sellers, depositories that hold your shares electronically, brokers that give you a terminal to trade, and asset managers who invest your savings. None of them own the money that moves through them. They just take a small fee every time it moves.
An exchange like NSE or BSE does not buy or sell stocks itself, it just runs the marketplace and charges a tiny fee on every transaction that clears through it. A depository like CDSL does not own your shares, it electronically records who owns what and charges small fees for that record-keeping. This makes these businesses asset-light: they need relatively little capital to run, which is why their return on equity tends to be high, but it also means their revenue is directly tied to how much activity is happening in the market, not to some steady rent-like income.
For decades, most Indian household savings sat in bank fixed deposits, gold, and physical real estate. Financialisation means more of that money is now moving into mutual funds, stocks, and insurance, most visibly through the rise of monthly SIPs (systematic investment plans) into mutual funds. Every rupee that shifts from a bank deposit into a mutual fund or a demat account creates a small recurring fee for someone in this chain, whether that is the AMC managing the fund, the broker who opened the account, or the depository holding the shares.
An asset management company (AMC) earns a fee, usually 0.5-2% a year, on the assets under management (AUM) it runs on behalf of investors. AUM can grow two ways: new money coming in, or existing investments simply rising in value as markets go up, and it is important to tell the two apart since only the first reflects the company actually winning more business. Yield is the fee percentage itself, and it matters because more AUM at a shrinking yield can still mean flat or falling revenue.
Brokers report total registered client counts, but a large chunk of any broker's accounts are dormant, opened once and never used again. What actually drives revenue is active clients, typically defined as those who traded at least once in the last 30 days, multiplied by how much and how often they trade. A broker adding a lot of new accounts but seeing active client growth stall is not really growing its real business, just its marketing funnel.
The rise of discount and zero-brokerage platforms over the last decade has pushed brokerage fees toward zero for plain equity delivery trades, forcing the whole industry to earn more from derivatives (F&O) trading, margin funding interest, and cross-selling other products instead. This is not a one-time shock, it is a steady grind that keeps compressing what each rupee of trading volume earns for the broker. A company whose revenue still leans heavily on plain brokerage fees is more exposed to this pressure than one that has diversified into asset management, wealth, or lending.
Because revenue tracks trading volumes and market sentiment so closely, capital markets companies tend to report their best earnings right when markets are euphoric, which is exactly when their stock valuations also look cheapest on a trailing P/E basis, and their worst earnings right when markets are fearful, which is when they look expensive. Applying a simple P/E ratio without adjusting for where the market cycle stands can lead to buying at the top of a boom or selling at the bottom of a bust. A better approach looks at revenue and profit averaged across a full market cycle, alongside the structural moat (like CDSL's near-monopoly in depository services) that should survive any single downturn.
Every sector reduces to a demand metric, a pricing metric, an efficiency metric, a capital metric, and a risk metric. For capital markets, these are the ones that matter.
What each number tells you, and how to read it.
| Metric | Why it matters |
|---|---|
| ADTO (Avg Daily Turnover) | Total market trading volume across equity and F&O. Exchanges earn per crore traded, brokers earn commissions. Volumes fall, revenue falls immediately. |
| Market Share | For exchanges, NSE dominates F&O, which is existential for BSE. For brokers, active-client share among discount and full-service players. |
| Active Client Base | Clients who traded at least once in 30 days, the monetisable base. Growing actives in flat volumes means share gain. |
| Revenue Yield (per crore of turnover) | A structural-decline metric. Zero-brokerage disruption compressed yields industry-wide. Watch for a floor or recovery. |
| AUM (for AMC / wealth arms) | Fee-based, recurring revenue uncorrelated to daily volumes. Increasingly critical for diversified players. |
| NII (Net Interest Income) | Income from client margin funds and pledged shares. Interest-rate sensitive; rising-rate cycles help brokers here. |
| Regulatory & Tech Moat | CDSL and NSDL are licensed near-monopolies. The moat is structural, not replicable. Regulation is both risk and protection. |
| New Product Revenue Mix | Margin funding, wealth, insurance distribution and AMC fees. Diversifying away from pure broking smooths revenue through cycles. |