Dhan and Zerodha Run the Same Business.

The 30-Second Summary

Dhan and Zerodha look like different companies.

The numbers say they're the same business.

• Same margins — both ~47% net.
• Same model — flat-fee per trade, derivatives-led.
• Same discipline — zero debt, full corporate cash tax, self-funded growth.
• Only difference — time.

Zerodha is what happens when this model compounds for a decade. The model is solved. Only time separates them.

Where the Numbers Rhyme

Two brokers in the same regulatory regime can run wildly different P&Ls. Dhan and Zerodha don't.

Net margin. Dhan 46.6%. Zerodha 48.0%. Both close to half.

Cash tax paid. Dhan ₹140 Cr (28% of profit). Zerodha ~₹1,400 Cr (33%). Both at full corporate rates. Neither has a tax shield left.

Operating cash flow. Both positive, both trailing PAT slightly because of brokerage settlement-cycle float.

Capital structure. Both zero borrowings. Both fund their own growth from operating cash.

The operating model has converged. The unit economics are not contested between the two; only execution and acquisition speed are.

Where the Numbers Diverge

The differences are scale and trajectory.

Revenue. Zerodha is 10× Dhan: ₹8,810 Cr vs ₹877 Cr.

Growth rate. Dhan +136% in FY2025. Zerodha low-teens. The smaller broker is taking share; the larger one is now the market.

Marketing intensity. Dhan's advertising grew 168% (₹27 Cr → ₹74 Cr). Zerodha's marketing has historically been negligible: Kamath plays referral-led, not paid. Dhan is buying acquisition; Zerodha earns it.

Cash pile. Zerodha sits on multi-thousand-crore liquid assets. Dhan ended FY2025 with ₹163 Cr. Cushion size is what funds optionality (research, AMC, fund management) — that's where Zerodha's lead extends beyond brokerage.

The Common Risk

A flat-fee broker is a leveraged bet on retail derivatives volume.

When India's retail F&O volume grows, both businesses compound. When SEBI tightens (lot sizes, true labelling, weekly expiry rationalisation, TER caps), both compress at the same time.

The risk is not Dhan-specific or Zerodha-specific. It is category-specific. Both businesses' revenue lines are sensitive to the same regulatory and macro variables. A 30% drop in retail F&O volumes would hit both proportionally; the cost bases are largely fixed and would not compress in the same year.

This is what makes the comparison interesting: their fates are correlated. Either both compound or both compress.

What Dhan Has That Zerodha Didn't

Dhan is running the playbook in a market that already exists.

In 2010, Zerodha had to educate retail traders on what flat-fee discount broking even meant. Demat penetration was under 5% of households. The thesis was unproven.

In 2021, Dhan entered a settled category. The model is no longer in question. The acquisition cost is higher (everyone competes for the same trader), but the product education is done.

Dhan is unlikely to grow into another ₹8,800 Cr business — the market won't carry two of that size in derivatives. A ₹2,500-4,000 Cr revenue base at the same margins is structurally available, and the FY2025 trajectory is on that curve.

What Zerodha Has That Dhan Cannot Replicate

Customer-base depth.

Zerodha has been compounding the same demat customers for over a decade. Those customers graduate: cash equity → derivatives → mutual funds (Coin) → bonds → wealth management. Each transition keeps them on the platform. The revenue line has shock-absorbers built in.

Dhan doesn't have that yet. A regulatory shock to F&O hits Dhan harder because the revenue mix is more concentrated in the cyclical product. Zerodha can lean on cash-equity, MF, and treasury revenue while F&O recovers. Dhan would need to lean on its cash reserves to bridge.

The Read

This isn't competition. It's a timeline.

Dhan is a smaller Zerodha on the audited math: same margin profile, same balance-sheet discipline, same cash-tax integrity, same growth-from-operations playbook. What separates them is twelve years of cohort compounding.

If retail derivatives volumes hold over the next decade, Dhan compounds toward a much larger version of itself. If they compress, Zerodha absorbs the hit better.

“The model is solved. Only time separates them.”

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Read Each Audit

The full filing-by-filing breakdown for each company is in the individual articles, with all sources and the audited line items they each surface.