Business
Know the Business — Groww
Groww is a fixed-cost utility wrapped around India's largest retail brokerage funnel. Once you see that the ₹4,645 Cr (FY26) revenue base sits on a roughly ₹1,500–1,900 Cr semi-fixed operating cost base — tech, cloud, ₹450–500 Cr/year of marketing — almost every other question about why margins are 59% and how the stock should be valued answers itself. Revenue is 84% broking (an order-routing toll line) plus a fast-growing 16% tail of MTF interest, AMC fees, distribution trail, and float — and the market is pricing the tail as if it will become the head.
At 55x trailing earnings versus Angel One's 30x and Motilal's 27x, the market is paying for two non-obvious things: (a) the option that incremental orders convert to AUM that converts to asset-management economics, and (b) the bet that ₹20-per-order brokerage holds while the user base keeps doubling. Both are real. Neither is yet in the P&L.
1. How This Business Actually Works
Groww earns four ways, and only one of them is what customers think they pay for. The big revenue line is brokerage — 84% of FY25 revenue came from "broking services" — but the high-margin growth lines (MTF interest, AMC TER, float on customer cash, distribution trail) are what stretch a flat ₹20-per-order rate card into a 59% operating margin.
Operating leverage is the whole story. Revenue went from ₹1,142 Cr (FY23) to ₹4,645 Cr (FY26) — a 4.1x rise — while the cost base did not scale anywhere near 4x. Operating margin moved from 35% to 59%; net profit from ₹458 Cr in FY23 to ₹2,083 Cr in FY26.
The FY24 operating margin dip to 27% is a head-fake — it was the year of IPO prep, a one-off ₹1,340 Cr "outbound merger" US tax exceptional, and aggressive customer-acquisition spend. By FY25, with the same revenue base diluted across millions more users, margins re-expanded to 62%. The FY26 step-down to 59% reflects (i) the post-October-2024 SEBI regulatory hits to F&O revenue and (ii) Fisdom consolidating from October 2025 onward, which added cost before adding scaled revenue.
The mechanism in one sentence. Each incremental user costs Groww almost nothing once acquired (cloud + per-order exchange fee), so the difference between a 5 Cr-user platform and a 14 Cr-user platform is mostly profit. That is why management said on the Q4 FY26 call that "cost to grow" is roughly a fixed ₹450–500 Cr line — bigger user base, same spend.
The cost stack. Three lines do the work: people + tech (~35% of revenue, fixed), exchange & regulatory pass-through (~25%, variable with volume but neutral to margin), and marketing (~10%, lumpy). Cloud is ~8%. The remaining slice is operating profit. The reason a sub-scale broker like 5paisa earns 7% ROE while Groww earns 28.8% is not a different revenue model — it is the same business at a fraction of the user count.
2. The Playing Field
Groww is the largest discount broker in India by active clients but does not look like its closest peer. Angel One is the only listed direct-comp; everything else (Motilal, Nuvama, 360 ONE, Anand Rathi) is a different business model — full-service or wealth-led. The peer table makes the distortion visible: Groww trades at ~2x Angel One's P/E, has 1.7x its NSE active client base, but only modestly higher revenue and pays no dividend.
The chart shows the controversy in one image. Groww has the highest market cap by a wide margin and a top-quartile ROE, but it is being priced as if returns and growth hold for years — at 55x P/E with 28.8% ROE, the implied PEG works only on the long-run trajectory. Anand Rathi shows what a pure mass-affluent wealth platform looks like: 47% ROE, 59% ROCE, on revenue an order of magnitude smaller — the unit-economics ceiling Groww is implicitly targeting with W and Prime.
What "good" looks like is visible: a top-3 discount broker by active clients (Groww #1, Zerodha #2, Angel One #3-4) that converts those users into multi-product cross-sell over time. Angel One is the cleanest test of whether that flywheel works — and at 30x P/E with 15.6% ROE, the market is saying Angel One has done the conversion only halfway. Groww is being granted a premium for being further along the user-count curve and for the optionality of three asset-gatherer call options (AMC, W, NBFC) layered on top.
The peer missing from the table is Zerodha — unlisted, founder-owned, similar revenue scale to Groww but disclosing nothing publicly. Any read on Groww's structural moat that ignores Zerodha's pricing discipline and Kite-platform retention is incomplete. If Zerodha cut headline brokerage below ₹20, the ₹20 floor would re-rate the industry down.
3. Is This Business Cyclical?
Yes — and the 2024–25 SEBI episode is the textbook downturn template, not the Nifty. Indian retail-broking cycles don't always need a bear market to bite. The October 2024 SEBI package (True-to-Label + F&O framework + STT hike) cut industry F&O notional ADTO by ~38% YoY by June 2025 and individual F&O participation by ~36% — with the Nifty near all-time highs. Groww's Q1 FY26 revenue fell 9.6% YoY while the index was up.
The cycle hits F&O brokerage first, then new user adds, then operating margin (fixed costs don't shrink). It does not hit AUM, MTF book size, or active user retention nearly as fast — those are leading-indicators-of-recovery, not symptoms-of-the-bust. Revenue falls fast, costs don't, but the asset-gathering layer keeps compounding underneath. Management has said "FIIs being negative" is the indicator they watch — the next bull cycle is the next inflection.
Take the 59–62% operating margin as peak-cycle, not steady-state. If F&O share of revenue mean-reverts to pre-curb 18% participation (vs current ~10%) operating margin probably re-tests 62%+. In a deeper Nifty bear, the margin floor is plausibly ~45–50% — still healthy, but not the 59% the market is extrapolating.
Revenue fell 9.6% YoY in Q1 FY26 — yet profit rose 12% because the FY25 quarter contained a one-off (related to the US tax exceptional). The signal: even a textbook regulatory-cycle hit produced only a single-digit revenue dip at Groww's current scale, because MTF, MF, and bonds revenue grew to offset most of the F&O loss. That is the value of revenue diversification.
4. The Metrics That Actually Matter
Forget P/E for the first six months. Five metrics explain almost everything about whether this platform is winning or losing. Two are scale measures (NSE active clients, customer assets), two are unit economics (AARPU, contribution margin), one is the canary for the next regulatory hit (Retail F&O ADTO share).
Active users have grown 2.7x in three years, but AARPU has flatlined and is now slipping as the user mix shifts away from F&O traders toward MF/ETF investors. That is a healthier customer base for retention — but it is also why total revenue grew only 14% in FY26 against double-digit user growth. The bull case: AARPU re-expands when (i) MTF book scales, (ii) AMC takes off, (iii) Fisdom/W contribute affluent-customer ARPU. The bear case: the discount-broker model has structurally low ARPU and growth must come entirely from user count.
Active Users × AARPU determine revenue mathematically. Contribution Margin tells you whether the unit economics changed. ADTO Share tells you whether the moat is widening or narrowing relative to peers. MTF Book is the call option on lending economics. None of these is in the P&L line items most analysts watch first.
5. What Is This Business Worth?
The right lens is normalised earnings power on the broker × an explicit option value for the three asset-gatherer businesses. Not sum-of-the-parts in the strict listed-subsidiary sense — Groww has no listed subsidiaries — but a single-engine valuation that respects how much of today's 59% margin is repeatable through a cycle, with separate, explicit haircuts for the AMC / W / Fisdom / NBFC pieces before they earn material money.
What mostly determines value is earnings power at the broker × user count × mix-stability of AARPU, plus a call option on AUM economics. Not book value (book is ₹15.4/share against a ₹183 stock — almost meaningless). Not dividend yield (zero). Not unit economics at the affluent-wealth arm (too early, sub-scale).
A sanity check on the multiple. At 55x trailing P/E on FY26 net profit of ₹2,083 Cr, the market is implicitly underwriting that FY28 net profit reaches roughly ₹3,500–4,500 Cr at a 25–30x exit P/E. That requires either (a) revenue compounding ~25% per year for two more years at stable 55–60% margins, or (b) a step-change in mix from the asset-gatherer call options. The base case from FY26's actual numbers (revenue +14% on a regulated cycle, user adds slowing) sits below path (a); path (b) needs Groww AMC AUM and W/Fisdom integration to produce hard numbers in FY27.
Why not strict SOTP. Groww's regulated subsidiaries (GIT broker, GCS NBFC, Groww AMC) are wholly owned and not separately listed; the State Street deal in AMC implies a value but no public-comp anchor exists. Wealth (W, Prime) is pre-scale. Lending (MTF + personal loans) is small. A single-engine valuation with explicit haircuts for each call option is more honest than a false-precision SOTP. The closest separately valuable piece is Groww AMC — that is the one explicitly worth tracking as a separate AUM/TER number.
What would make the stock cheap or expensive. Cheap: sustained user-count growth at 15–20% in a normalised cycle with AARPU stabilising above ₹3,500 and MTF book to ₹5,000+ Cr — that path yields ~₹6,500 Cr revenue and ~₹3,000 Cr PAT by FY28, putting today's stock near 25x forward. Expensive: AARPU drifts toward ₹2,800, user adds plateau at single digits, the F&O regime tightens further, and the AMC/wealth call options do not vest — at which point this is a 35x P/E business on ₹2,200 Cr earnings.
6. What I'd Tell a Young Analyst
Watch three numbers monthly, two ratios quarterly, and one regulatory channel weekly. Monthly: NSE active client adds for Groww vs Zerodha vs Angel One (the source of truth on brand-pull); Groww-reported Retail Cash ADTO share (the cleanest market-share read); Total Customer Assets growth (the asset-gathering lead indicator). Quarterly: AARPU trend and contribution margin — the unit-economics tells. Weekly: SEBI and RBI circulars on F&O, MTF, true-to-label, and direct-plan rules.
The market is plausibly underestimating cyclicality. A 59% operating margin in a regulated-down year looks like steady state; it is not. The fixed cost base is genuinely fixed — bull case in good times, bear case in bad ones. Mid-cycle margins are likely 50–55%, not 59–62%. Modelling FY28 at 60% deserves a real challenge.
The market may also be underestimating the AMC + wealth optionality. The State Street partnership in Q3 FY26 is a credibility play, not financial. Once Groww AMC clears ₹50,000 Cr AUM (currently growing 2.5x/year off a small base), it becomes the highest-quality earnings line in the business — a 3–5 year story, not an FY27 catalyst, but the piece that justifies the 55x multiple if anything does.
Three things would change the thesis. First, a ₹20 brokerage floor break — if Zerodha or Dhan cuts to ₹15 or zero, the pricing-discipline assumption dies. Second, a Groww loss of the #1 active-client position to Zerodha — ends the brand-pull premium. Third, a regulatory move that targets MTF spreads directly (RBI tightened bank funding in Feb 2026 — a SEBI cap on broker NBFC interest rates would be the next shoe).
The discipline. Do not value this company on consolidated revenue × an industry multiple. The broker is a near-utility; the asset-gatherers are call options. Underwrite each separately, decide which call options you believe in, then ask whether what is left over justifies what you pay. If you cannot articulate which option you are paying for at 55x, you are paying for all of them.