Zerodha’s fifteenth anniversary arrived with an unfamiliar operating problem. After years in which market participation, customers, revenue and profit expanded together, Nithin Kamath said in September 2025 that broking revenue was falling by about 40 per cent. Higher securities transaction tax on options, the removal of exchange transaction-charge rebates, fewer weekly derivatives expiries and lower market activity had crystallised risks he had discussed for years.
For a conventional broker, the response might be higher prices, aggressive cross-selling or a search for leverage. Zerodha’s position is different. It remains bootstrapped, has no external investors and built its brand around simple pricing, low conflict and an insistence that most customers should invest rather than trade excessively. Those choices provide financial resilience and strategic freedom. They also make diversification harder because many obvious revenue sources would weaken the proposition that created customer trust.
Kamath’s leadership test is therefore not to restore the old growth rate at any cost. It is to adapt the economics of Zerodha while preserving the alignment between customer outcomes and company behaviour. A cyclical slowdown can be absorbed. A structural reduction in derivatives revenue requires a more durable answer.
The revenue model was more concentrated than the brand appeared
The Securities and Exchange Board of India’s true-to-label rules required market infrastructure institutions to charge brokers according to the rate presented to customers rather than provide volume-based rebates after the fact. Before the change, Zerodha earned about 10 per cent of revenue from the difference between transaction fees collected and those paid to exchanges. Roughly 90 per cent of that rebate income came from options activity.
The rule removed a revenue stream that was largely invisible to many customers. Separate measures then reduced the frequency and attractiveness of speculative derivatives trading. The combination exposed an important concentration: Zerodha’s free equity-delivery service had been partly supported by revenue associated with active futures and options customers.
Cross-subsidy is not inherently wrong. Many platforms use profitable activities to fund access elsewhere. The question is whether the subsidy remains stable and whether it creates incentives that conflict with customer welfare. Zerodha had repeatedly warned that most individual derivatives traders lose money and invested heavily in education and product nudges. That restraint differentiates it, but it does not eliminate dependence on the activity.
Kamath should make the economic relationship more explicit. Management needs to know the contribution of customer cohorts after exchange fees, technology, support and risk capital. It should distinguish transactional revenue from recurring service income and avoid treating client funds or temporary interest conditions as permanent economics. A transparent internal model will reveal which parts of the proposition can remain free and which require a fair charge.
Pricing must be simple, not frozen
Zerodha maintained zero brokerage on equity delivery after the true-to-label changes, despite initially warning that the model might need revision. Preserving a familiar promise can strengthen trust during regulatory change. Yet permanence should not become dogma. If a service has a real cost and its subsidy disappears, an understandable fee may be more responsible than hidden monetisation elsewhere.
Any pricing change should follow three principles. It should be easy to calculate before a transaction, apply consistently and preserve a low cost for long-term investors. Kamath should avoid complex tiers that make customers optimise around fine print. A modest account, platform or premium-service charge can be more aligned than pushing users towards higher trading frequency.
The company’s independence is useful here. External investors might demand immediate revenue replacement or a public-market narrative. Zerodha can accept lower profit while it observes how behaviour settles under new rules. But patience should be used to design a sustainable model, not to postpone a decision until cash flows force one.
Price also communicates what the company values. Keeping long-term investing accessible while charging appropriately for high-intensity tools, data or service would align economics with the educational message. The objective is not to punish traders. It is to stop the business from requiring harmful customer behaviour to fund useful access.
Reliability is the product customers cannot diversify
A broker’s interface can be copied more easily than its risk systems, back-office accuracy and operational culture. Customers experience the difference during volatile markets, settlement events and technical incidents. Zerodha’s scale means a short disruption can affect a large number of positions and generate immediate regulatory and reputational consequences.
The company has continued to release incremental improvements to Kite, risk controls, reporting and customer support. Those features matter, but Kamath should put resilience ahead of a crowded roadmap. Capacity planning, exchange connectivity, cyber security, change management and recovery procedures are capital investments even when they do not create visible growth.
Regulators increasingly require brokers to demonstrate not only solvency but operational continuity and accurate incident disclosure. Zerodha has published root-cause reports for service events, an important practice that should become more systematic across the industry. The strongest disclosure explains customer impact, cause, remediation and prevention without minimising the event.
Trust also depends on the custody and use of client assets. Zerodha has historically emphasised zero debt, the absence of margin funding and straightforward treatment of securities. As the product set expands, those structural safeguards should remain legible. Revenue diversification should never create a balance-sheet risk that customers cannot see.
Education is risk management, not content marketing
Varsity, TradingQ&A, Z-Connect and other educational initiatives are central to Zerodha’s identity. In June 2026, the company added an accessible trading-education series through a partnership with In The Money, reinforcing the view that customers should understand risk before using complex instruments.
Education produces long-term commercial value by reducing preventable errors, improving customer quality and lowering support burden. It also creates a standard against which product design should be tested. If educational material warns against excessive leverage while the interface celebrates frequent trading, the message is hollow. Nudges, default settings and risk displays should support what the company teaches.
Kamath can go further by connecting education with measurable behaviour while protecting privacy. The company should test whether users who complete relevant modules make fewer order errors, understand derivative pay-offs and maintain more diversified portfolios. It should not use the information to judge or exclude customers unfairly, but it can design interventions around moments of clear risk.
Financial scams are another growing threat. Zerodha’s 2026 guidance emphasised verified intermediaries, official payment handles and the danger of unsolicited tips and remote-access requests. Education here protects both customers and the brand because fraudsters borrow the credibility of established platforms. Faster reporting, clear in-product verification and collaboration with banks and regulators should be treated as core security work.
Rainmatter must diversify value without importing conflicts
Through Rainmatter, the Kamath brothers have supported companies across investing, insurance, climate and health. The ecosystem can deepen services available to Zerodha customers and give the group exposure to new sources of value. It also creates potential conflicts around distribution, data and preferential access.
The strategic benefit is greatest when Rainmatter solves gaps that Zerodha should not build itself. Specialist partners can offer bonds, portfolio tools, insurance guidance or long-term savings products while the broker remains focused on execution and infrastructure. Investments also support Indian founders without forcing every idea into Zerodha’s operating company.
Governance must keep the distinction clear. Customers should know when a product comes from an invested company, what data is shared and how commercial arrangements work. Recommendations should not be influenced by ownership without disclosure. The brokerage’s trusted interface is too valuable to become a captive distribution shelf.
Rainmatter also cannot be expected to replace broking revenue quickly. Venture returns are uncertain and long dated. Its value lies in option creation and ecosystem strength, not smoothing a near-term income statement. Kamath should resist presenting portfolio valuation as operating diversification.
The next growth market is patient capital
India still has a large opportunity to broaden long-term household participation in capital markets. Much recent engagement has concentrated in derivatives and short-duration speculation, areas now receiving tighter regulatory attention. Zerodha can redirect product energy towards diversified investing, bonds, mutual funds, retirement needs and risk-appropriate asset allocation.
This shift may produce less transaction revenue per active user, but it can create longer relationships and a healthier market. The company’s tools can make costs, taxes and portfolio concentration more visible. It can simplify recurring investments and help customers understand exchange-traded funds that deviate from underlying value. A March 2026 product nudge highlighting ETF premiums and discounts illustrates the kind of protective design that builds trust.
The commercial model for patient capital may require recurring fees for genuine value rather than commissions on activity. Customers will pay when reporting, advice boundaries, family views or advanced planning save time and reduce mistakes. Zerodha should be careful not to cross into personalised advice without the necessary structure and licences. It can still provide excellent execution, information and decision tools.
Independence needs institutional succession
Bootstrapping has allowed Zerodha to avoid fundraising cycles and remain focused on customers. It also concentrates ownership and key-person influence. Kamath’s public voice, his brother Nikhil’s investment role and a small group of long-serving executives are closely associated with the company. Durability now requires a governance structure that can operate through founder absence, market stress and generational transition.
Boards and senior committees should have the expertise and authority to challenge pricing, risk and related ecosystem decisions. Operational leaders need clear accountability. Succession plans should cover technology, compliance, risk and the chief executive role. Private ownership is not a reason for lower standards; it is a reason to create standards voluntarily before a crisis tests them.
The performance scorecard for the next phase should move beyond customer count and profit. It should include platform resilience, complaint resolution, the share of customers building diversified long-term assets, revenue concentration, capital strength and the quality of regulatory outcomes. Profit can decline while the franchise becomes stronger, provided the new economics are visible and sustainable.
Kamath built Zerodha by removing cost and conflict from Indian broking. Regulation is now removing some of the economics that supported that achievement. The appropriate response is not to defend every feature of the old model. It is to preserve the principle underneath it: customers should understand what they pay, what risk they take and how the company earns.
If Zerodha can remain reliable, well capitalised and aligned while broking revenue falls, independence will have proved its strategic worth. If it replaces lost income through opacity or activity incentives, the brand’s strongest claim will weaken. The boom rewarded scale. The reverse test will reveal the quality of the institution Kamath has built.
