Nithin Kamath Success Story: The Trader Who Built Zerodha

Nithin Kamath is the Co-Founder and CEO of Zerodha, India’s largest retail stockbroker by active clients. He co-founded the company in August 2010 with his younger brother Nikhil Kamath, with a single idea: to bring down the cost of investing for retail traders by eliminating percentage-based commissions and replacing them with a flat fee model.

Born on October 5, 1979, in Shivamogga (then Shimoga), Karnataka, into a Konkani-speaking family, Kamath is today one of India’s most prominent self-made entrepreneurs. Zerodha, which he and his brother built with no external capital, no advertising, and no pedigree institution behind them, reported revenue of ₹8,320 crore and a profit of ₹4,700 crore in FY24, making it and had it been listed, among the 63 most profitable companies in India that year.

Education

Nithin Kamath completed his schooling across multiple cities as his family moved with his father’s transfers at Canara Bank, before settling in Bangalore in 1996 where he finished his secondary education. He went on to complete a Bachelor of Engineering in Electronics and Telecommunications from Bangalore Institute of Technology (BIT).

What is notable about his educational story is how little formal training contributed to where he eventually went. By his own account and in his blog posts, Zerodha was built with no pedigree education in finance, no background in tech, and no experience in running a company, just years of direct market participation and a very clear understanding of what was wrong with the existing brokerage model.

Early Career: Trading Before There Was a Business

Nithin Kamath began trading at 17, managing his father’s account. That early exposure to markets became a compulsion rather than a hobby. Through his college years, he continued to trade actively, learning through wins and losses, and developing a deep practical understanding of how Indian equity markets work.

After graduating, he worked briefly at a call centre, an experience he has recalled publicly after getting spam calls, noting that “karma has a way of biting back.” But the call centre was a short detour. His focus was always on markets.

In 2006, he formalized his interest in brokerage by setting up Kamath and Associates, a sub-brokerage operation running under Reliance Money. The firm offered portfolio advisory services and engaged in proprietary trading. It was small, ran on thin margins, and had none of the scale of the large FMCG or tech founder stories. But it gave Nithin four years of hands-on experience in how the brokerage business actually operates, the infrastructure, the client management, the compliance requirements, and critically, the pricing model that he believed was fundamentally broken.

That conviction about pricing became the founding thesis of what came next.

Zerodha: The Founding and the Business

In August 2010, Nithin co-founded Zerodha with his brother Nikhil, funding the company entirely from their own savings. The name combines “Zero” and “Rodha,” a Sanskrit word for barriers with an intent to remove the barriers that kept everyday Indians away from participating in capital markets.

The core disruption was pricing. Where traditional brokers charged a percentage of the trade value often 0.3% to 0.5%, Zerodha introduced a flat fee of ₹20 per executed order for intraday and F&O trades, and zero brokerage on equity delivery trades. For a retail investor placing a ₹1 lakh trade, the difference between paying ₹500 and paying ₹20 was significant. Multiplied across millions of trades, it reshaped the economics of retail participation in Indian markets.

The company grew without advertising, relying on word of mouth and its own content-driven community-building approach. Zerodha Varsity, its free educational platform, became one of the most widely used financial literacy resources in India. Kite, its trading platform, was widely regarded as one of the cleanest and fastest interfaces available to retail traders.

By FY24, Zerodha reported revenue of ₹8,320 crore and profit of ₹4,700 crore, a 61.5% jump in profit year-on-year. The company had over 1.6 crore registered customers contributing approximately 15% of India’s total daily retail exchange volumes. The Kamath family retains 100% ownership, no venture capital, no private equity, no debt raised from external sources.

The FY25 and FY26 period has been more challenging. A combination of SEBI regulatory changes, higher Securities Transaction Tax on F&O trades, the elimination of weekly contract expiries across multiple indices, the removal of exchange fee rebates, and stricter norms for options trading resulted in a 40% year-on-year fall in brokerage revenue for the June 2025 quarter. Nithin Kamath acknowledged this publicly, including a candid post on Zerodha’s 15th anniversary noting that the company may be forced to start charging brokerage. Zerodha’s response to this pressure has been diversification: it launched a BSE Sensex Index Fund in October 2025, launched a Nifty 50 ETF and Index Fund in mid-2025, began developing US stock trading access under the GIFT City framework, and expanded into lending through Zerodha Capital.

Rainmatter: The Investment and Incubation Arm

In 2016, Nithin Kamath launched Rainmatter, a fintech-focused venture fund and incubator that operates as an initiative of Zerodha. Rainmatter’s stated mission is to build a better ecosystem around finance, investing, and long-term health — both financial and environmental.

Rainmatter has backed over 50 startups across fintech, healthtech, edtech, climate tech, and financial inclusion. Notable portfolio companies include Smallcase, a portfolio-based investing platform; Streak, an algo-trading platform; Sensibull, an options trading analytics tool; and Goldsetu, a digital gold platform. Many of these companies are deeply integrated into the retail investing ecosystem that Zerodha helped create.

In 2021, Rainmatter Foundation was established as a separate non-profit arm focused on climate and environmental causes. It has funded grassroots organisations working on soil health, water, clean energy, and forest restoration. Through Rainmatter Climate, Nithin and Nikhil have invested in startups including Climes, SolarSquare, and Akshayakalpa, companies working at the intersection of sustainability and consumer behaviour.

Nithin is also a co-director of Rainmatter Land Development, a newer entity alongside his wife Seema Patil and brother Nikhil, focused on real estate-adjacent investments.

Personal Life

Nithin Kamath married Seema Patil in 2008. Seema, a former cabin crew member and fitness enthusiast, is now a Director at Zerodha and is formally involved in the company’s operations. The couple has one son, Kiaan. The family is based in Bengaluru.

His father, U.R. Kamath, worked as an executive at Canara Bank. His mother, Revathi Kamath, was a Veena teacher,an instrument she taught Nithin during his childhood. His younger brother Nikhil Kamath is his co-founder at Zerodha and has independently built True Beacon, an asset management firm for ultra-high-net-worth individuals, and Gruhas, a real estate and climate-focused investment vehicle.

The Health Journey: A Stroke at 44

In January 2024, Nithin Kamath suffered a mild stroke. He disclosed this publicly in a LinkedIn and social media post in late February 2024, writing:

“Around 6 weeks ago, I had a mild stroke out of the blue. Dad passing away, poor sleep, exhaustion, dehydration, and overworking out, any of these could be possible reasons.”

The candour of that post, which was shared widely, was notable. At 44, someone who by most external markers was fit and active, Kamath was confronting the fact that his health had failed in a way he had not anticipated. He described going from a visible facial droop and being unable to read or write, to gradual recovery, being able to read and write again, the droop reducing to a slight trace. He estimated full recovery would take three to six months from the date of his disclosure.

By May 2024, he made his first public appearance, posting a photo collage on social media and writing:

“I wondered why a person who’s fit and takes care of himself could be affected. The doctor said you need to know when to shift the gears down a bit. Slightly broken, but still getting my treadmill count.”

His openness about the event had a ripple effect. He subsequently posted about health insurance, writing that most Indians were “just one hospitalisation away from bankruptcy” and urging people to secure comprehensive coverage.

Investments and Other Ventures

Beyond Rainmatter, Nithin Kamath has been active as a personal investor across a range of companies. His disclosed portfolio includes equity positions in Nazara Technologies, one of India’s most prominent listed gaming companies, where the Kamath entities acquired 1.15 million shares through a preferential allotment worth approximately ₹100 crore in March 2024.

Through Rainmatter, the portfolio spans climate-focused investments including Climes (carbon credits for consumers), SolarSquare (rooftop solar), and Akshayakalpa (organic dairy). In fintech, Rainmatter has backed tools that sit within the broader investing ecosystem such as analytics platforms, algo-trading tools, and portfolio construction products.

He is also a SEBI advisory committee member, which gives him direct visibility into regulatory developments affecting the industry he operates in.

Awards and Recognition

Nithin Kamath and Nikhil Kamath have been included in Forbes India’s 100 Richest for 2024, a recognition tied to Zerodha’s valuation and the Kamath family’s full ownership of the bootstrapped business.

Zerodha has been recognised as India’s largest retail broker by active clients across multiple years, a position it has maintained while facing growing competition from Groww, Angel One, and Upstox. It remains the only major broker in India that does not seek invasive app permissions or use user-tracking tools.

Zerodha’s Varsity platform, which provides free financial education, is widely acknowledged as one of the most comprehensive and accessible retail investor education resources in India.

Net Worth

Nithin Kamath’s net worth is estimated at approximately $2.5 billion (around ₹20,750 crore) as of early 2026, per Forbes March 2025 estimates. Other sources, accounting for Zerodha’s valuation recovery through 2026, estimate his personal net worth closer to ₹25,000 crore. The majority of his wealth is concentrated in his stake in Zerodha, which remains 100% family-owned. The Kamath brothers together hold the entirety of the company, making precise stake-level valuations dependent on external estimates of Zerodha’s enterprise value rather than public market disclosures.

His net worth declined in 2025 as Zerodha’s revenue and profitability came under pressure from regulatory changes, and has recovered partially through 2026 as the company’s diversification efforts began producing results.

Recent Updates: 2025 and 2026

The defining theme of Nithin Kamath’s recent public presence has been Zerodha’s regulatory pivot and his own health recovery.

On the business side, Zerodha faced a 40% drop in brokerage revenue in Q1 FY26 (the June 2025 quarter) as SEBI’s changes to F&O trading rules, reduced weekly expiries, higher STT, elimination of exchange fee rebates, and ASBA for trading, compressed volumes significantly. Nithin Kamath publicly acknowledged that Zerodha may need to abandon its zero-brokerage model and start charging fees, a significant strategic signal for a company that had built its identity on that pricing structure.

In October 2025, on Zerodha’s 15th anniversary, he outlined a pivot toward wealth management and lending as the primary growth vectors: Zerodha AMC (which received SEBI’s in-principle approval earlier), a mutual fund business, US stock trading under GIFT City, and expansion of Zerodha Capital’s lending operations.

By January 2026, Zerodha reported it now has over 1.6 crore users, with 30% of them joining through referrals.

On the health front, Nithin Kamath has continued to speak publicly about recovery and lifestyle recalibration. He has incorporated his personal experience into broader advocacy on health insurance and preventive wellness, themes he posts about regularly on social media.

[Disclaimer: The information published in this article reflects publicly available details about Nithin Kamath and Zerodha as of the date of publication. If you find any information that is incorrect or outdated, please write to us and we will review and correct it promptly.]