AI-generated · cited to primary sources · not investment advice · How we research
Billionbrains
Our verdict on Billionbrains isn’t the consensus take — see where we landed, and the one risk the bull case glosses over.
See the verdict — free →Does management do what it says?
The company confirmed the 100% acquisition of Fisdom was consummated on October 3, 2025, and operations were consolidated in the Q3 FY26 results. (2 met across 2 tracked commitments)
“Furthermore, Fisdom, which we recently acquired, at its existing run-rate would add 3 - 4% to Revenue from Operations.”
Management confirmed that consolidation of the wealth acquisition (Fisdom) began in October, reflecting in the Q3 FY26 results. (3 met across 3 tracked commitments)
“We think it is better to look at Adjusted EBITDA to determine the operating health of the company due to the one-off adjustments which will be normalised Q4 FY26 onwards.”
See the full cited Management analysis of Billionbrains
How durable is the business?
Margin Trading Facility (MTF) is expanding rapidly, now contributing 3-4% of brokerage revenue and increasing overall cash segment realizations by approximately INR 2 per order. (5 expanding across 1 engine)
“Total Income mix, by Products (% Share) ... MTF 7%”
The company is demonstrating high operating leverage as the cost to grow (marketing) declined even as user acquisition hit record highs. (1 expanding)
“Consequently, our CAC improved by 33% QoQ in this quarter to ~₹900. We believe that the right lens to look at CAC and marketing spends is on an annual basis.”
See the full cited Business Model analysis of Billionbrains
Where does growth come from?
The Margin Trading Facility (MTF) is showing strong growth momentum, with management targeting a double-digit market share within three years, up from current levels. (4 accelerating, 1 steady across 5 signals)
“Margin Trading Facility ₹28,143 Mn Q4 FY26”
The company is rapidly capturing market share in the Equity Derivatives (F&O) segment, nearly doubling its share of the retail premium turnover in one year.
“Equity Derivatives... 10.6% Q4 FY26... 6.8% Q4 FY25”
See the full cited Future Growth analysis of Billionbrains
What could break the thesis?
The risk is intensifying as the revenue contribution from equity derivatives increased from 53.5% to 54.6% QoQ. Management notes that market volatility has a more pronounced impact on this segment. (1 intensifying, 1 high-severity)
“In Q4, we observed a marginal increase in the contribution of equity derivatives to overall revenue, rising from 53.5% to 54.6%.”
The risk is intensifying as 'Cost to Operate' grew significantly (28% QoQ and 66% YoY). Management admits these costs are largely fixed and will continue to grow with salary appraisals. (1 intensifying)
“The Cost to Operate for the Groww platform grew 28.0% QoQ as well as 66.0% YoY in Q4. The growth was attributable to (a) risk related costs because of the higher volatility in Q4, and (b) higher G&A spends”
See the full cited Risk analysis of Billionbrains
Read the full thesis on Billionbrains
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