Why the Buffett Indicator is Widely Misused | Thrive by Groww ft. Rajeev Thakkar

ELI5/TLDR

Rajeev Thakkar runs the Parag Parikh Flexi Cap Fund, one of India’s most trusted mutual funds. In this interview he explains why the famous “Buffett Indicator” (a country’s total stock value divided by its GDP) is a blunt tool people use far too carelessly. Along the way he covers how to tell a temporary stock dip from a permanent one, why growth and value aren’t opposites, why trading is a zero-sum card game while investing isn’t, and why envy is the one financial sin that makes you miserable even while you commit it.

The Full Story

The most common mistake: chasing whatever just worked

Thakkar opens with the error he sees over and over. People look at the last 12 to 24 months, find whichever asset did best, and pile in at exactly the wrong moment. Late ’90s it was technology. 2007 it was real estate and infrastructure. More recently, defence stocks. The pattern never changes: a theme gets fashionable, money floods in at the top of the cycle, and the latecomers get hurt.

“Inflation will go up, come down, tariffs will come and go away, wars will start and wars will end, oil prices will shoot up and come down. But one has to decide allocation based on one’s needs and then stay the course.”

The fix is unglamorous. Decide your allocation based on your actual goals (retirement, a child’s education, a house) and then ignore the headlines.

Riding a trend without getting trampled

Spotting a real trend is only half the job. A new sector opening up usually attracts too many players, and the volume growth comes with terrible profitability. He gives two graveyards: private airlines in the mid-’90s and the first wave of mobile phone operators. Both were genuinely transformative trends that destroyed enormous investor wealth.

What he waits for is the moment a trend has thinned out into a few survivors with pricing power. PPFAS bought into telecom (Bharti Airtel) only after a “brutal competition period” left fewer players who could finally raise prices, and into autos (Mahindra) for its SUV and electric lineup and renewed capital discipline. The underlying trend needs a chaperone: some barrier to competition, a strong balance sheet, real financials.

Temporary headwind or permanent damage?

When a stock sells off on bad news, there’s one question that matters: is the business permanently broken, or just bruised? He uses Jet Airways as the cautionary tale. Buying after the planes stopped flying made no sense, because the debts were real and unpayable and the company was headed for liquidation. Averaging down into a corpse is not value investing.

Contrast that with Meta. The metaverse spending looked wasteful, but the damage was bounded: worst case, it dents one or one-and-a-half years of earnings and they cut back (which they did), while throwing off ancillary benefits like AI glasses and open-source models. The whole skill is telling one situation from the other.

Cyclical businesses dressed up as secular growth

He’s been trimming “capital markets” plays (exited Motilal Oswal and UTI AMC, still holds MCX and CDSL). The reason: in a rising market, IPOs flood out, investment banking fees swell, private equity exits trigger performance fees, AUMs balloon, brokerage turnover spikes. It feels like permanent growth. But it’s a cycle. Costs rise, competition for talent heats up, new players pile in, and the downturn arrives. His read: we’re at the upper end of that cycle, so he’s lightening up.

AI through an Indian lens, and the Jevons paradox

On the worry that India has “lost the AI race”: he isn’t bothered. India never built the foundational layer (no Windows, no Oracle, no Adobe) but has always been world-class at implementation and services. AI looks like a headwind for IT services (less manpower needed, top lines pressured) but he expects the opposite over time.

“As things become cheaper, the demand for that goes up. So, it’s… in literature it’s called something like the Jevons paradox.”

His example: Indian brokerage rates fell from 2-3% to near nothing, yet total brokerage revenue today dwarfs the ’80s and ’90s, because volume exploded. Price times volume is what matters, and volume wins. AI, like the internet, is a multi-decadal theme with booms, crashes, and entirely new winners (Facebook didn’t exist in the ’90s).

Growth can be value; the trap is overpaying

Thakkar pushes back on the growth-versus-value framing. Growth is simply an input into your estimate of future cash flows; you value the company on those, then buy at a discount. PPFAS owns Microsoft, Google, Amazon, Meta precisely because it judged them worth more than their price. The objection isn’t growth, it’s overpaying for it.

He reaches for Benjamin Graham: “Obvious prospects for physical growth do not translate into obvious profits for investors.” Late-’90s Infosys and Wipro were phenomenal companies trading at 200-300 times earnings, and they delivered zero return for 7-10 years even as profits grew. Top-line growth (units sold) is not the same as bottom-line return on the capital invested. If you put in 100 and get 20-25 back, fine. If you put in a lakh for the same 25, that’s vanity, not a business.

Flat-to-negative returns are a feature, not a bug

The hardest part of equity investing is patience through long dead patches. He cites the Indian index going essentially nowhere from 1992 to 2003, and a long consolidation after the December 2007 peak. His defence: give up some upside in the frothy years. If you’d stayed away from real estate and infra in 2007 you’d have looked foolish that year, but you’d have escaped the brutal drought that followed.

Trading is a card game; investing is a restaurant

His cleanest analogy, on why he steers people toward investing. SEBI data showed Indians lost ₹1.07 lakh crore in F&O trading.

“Let us say you and I, we pull together some money and we started a restaurant… If the restaurant is doing well, both of us can be profitable. Instead if we pulled out a pack of cards and we started playing a card game, can both of us win? Answer is no. It is a zero-sum game.”

Add transaction costs and taxes, and trading is worse than zero-sum. Investing, by contrast, has only winners over the long run if you stay put. The Sensex went from 100 to over 45,000-odd across 45 years.

The Buffett Indicator: a metric people “use and abuse”

Asked for an overrated metric, he names market-cap-to-GDP, the famous “Buffett Indicator.” His objection isn’t that Buffett was wrong, but that the number gets applied where it doesn’t belong:

Across time: Saudi Arabia’s ratio looked completely different before and after Saudi Aramco listed, because one giant listing swamped the whole market. The economy didn’t change; the listed slice did.
Across countries: comparing an oil-dependent Brazil or Saudi Arabia to a tech-heavy US is apples to oranges. North Korea’s ratio is zero (no stock market), which doesn’t make it infinitely cheap.
Listed share of the economy varies: India’s informal eateries aren’t listed; America’s are McDonald’s and the like. How much of a country’s business sits inside the listed market changes everything.
Business is global, GDP is local: Microsoft’s market cap counts toward US market cap, but its revenue is worldwide. Jaguar Land Rover sits inside India-listed Tata Motors but earns globally. The numerator and denominator don’t line up.

His underrated counterpart: boring, crude basics. Book value, price-to-earnings, price-to-sales. Analysts build 40-year DCF models; simple metrics would have saved them from many mistakes.

Building something that outlasts the founder

On the worry that PPFAS is “Rajeev Thakkar and Tesla is Elon Musk,” he’s blunt: he’s 53, and within 47 years he’ll certainly have no association with the firm. The whole point is systems and processes that don’t depend on one person. The team is ~350 people now; the flexi cap’s key managers (Raunak, Raj) have been there since day one in 2013. He frames the new large-cap fund with a restaurant menu: they’ve served idli for 13 years, now there’s a dosa too. If you don’t want the dosa, don’t order it.

Ending on envy

His parting advice for 2026: avoid the frothiest things and avoid FOMO. He quotes Charlie Munger on the seven deadly sins. Most sins are at least fun while you commit them: gluttony feels great in the moment, the bill comes later. Envy is the one sin that makes you miserable the entire time, because your unhappiness comes from your colleague making more money than you. Avoid it, this year and forever.

Key Takeaways

Market-cap-to-GDP is unreliable across time (a single huge listing like Saudi Aramco distorts it), across countries (oil economies vs tech economies aren’t comparable), and structurally (the numerator counts global revenue, the denominator only local GDP; and the listed share of an economy varies wildly).
Chasing the best-performing asset of the last 12-24 months is the single most common retail mistake; allocate by your actual goals instead.
New trends usually destroy wealth before creating it because too many players rush in with poor profitability. Wait for consolidation, pricing power, and balance-sheet strength (telecom post-shakeout, autos with capital discipline).
Temporary headwind vs permanent damage is the core skill in buying a sell-off. Jet Airways (real, unpayable debt) = permanent. Meta’s metaverse spend (bounded, reversible) = temporary.
Capital-markets businesses (AMCs, brokers, exchanges) are cyclical, not secular: their fees swell in bull markets and shrink in downturns. Thakkar reads the current point as the upper end of that cycle.
Jevons paradox in finance: when something gets cheaper, demand can rise enough that total revenue grows. Indian brokerage rates collapsed from 2-3% to near zero, yet total brokerage revenue is far higher than decades ago because volume exploded.
Growth and value aren’t opposites. Growth is an input to a cash-flow estimate; the only sin is overpaying. PPFAS owns Microsoft/Google/Amazon/Meta as value buys.
Graham: “Obvious prospects for physical growth do not translate into obvious profits for investors.” Late-’90s Infosys/Wipro at 200-300x earnings gave zero return for 7-10 years despite profit growth.
Top line ≠ return. 25 profit on 100 invested is good; 25 on a lakh invested is vanity. Demand a reasonable return on capital, not just revenue growth.
Flat-to-negative stretches are a feature of equities, sometimes lasting a decade (India 1992-2003). The defence is giving up some bull-market upside by avoiding the frothiest sectors.
Trading is zero-sum (worse, after costs and taxes); investing is positive-sum. Indians lost ₹1.07 lakh crore in F&O per SEBI data.
Simple metrics beat elaborate DCFs: book value, P/E, P/S would prevent more mistakes than 40-year cash-flow projections.
Munger on envy: it’s the only deadly sin that makes you miserable even as you commit it, because it’s driven entirely by comparison to others.
Book recommendations: Deep Work (Cal Newport) for focus; One Up on Wall Street and Beating the Street (Peter Lynch) as accessible investing starters; The Intelligent Investor (good but dry for a first read).

Claude’s Take

This is a clean, high-signal interview, and Thakkar is genuinely good at compressing real investing wisdom into kitchen-table analogies (the restaurant-versus-card-game framing of investing-versus-trading is about as clear as it gets). The Buffett Indicator critique that headlines the video is correct and well argued, though not novel; the four objections he raises (cross-time, cross-country, listed-share, global-revenue) are the standard ones, delivered crisply. The freshest moment is the Jevons paradox applied to brokerage and IT services, which is a genuinely useful lens for thinking about AI’s effect on Indian services.

The honest caveat: this is a fund manager talking his own book on Groww’s platform, and there’s a soft sell running underneath (the new large-cap fund, the “we’ve been cautiously holding cash and it worked out” narrative). None of it is dishonest, but the cautious-and-validated posture is exactly what you’d expect a manager to say, and “thankfully we have not underperformed” is the kind of line that ages well only in hindsight. Take the self-assessment with a pinch of salt; take the frameworks at full value.

Score: 7. Nothing here will surprise a seasoned value investor, but it’s an unusually articulate distillation, and the envy-as-misery close is the rare investing-interview ending worth remembering.