9 Out of 10 Fund Managers Are Wrong. Here's the Math No One Shows You.

ELI5 / TLDR

A celebrated Indian fund manager, Saurabh Mukherjea of Marcellus, grew his firm to over Rs 7,000 crore on the strength of a great early track record. Then his flagship strategy fell about 9 percentage points behind the Nifty index over five years, and roughly 80% of the money walked out the door. The video argues this is not bad luck but a structural pattern: most expensive, actively-managed portfolios end up underperforming a cheap index fund, and the marketing carefully hides this. The takeaway is that you can hire someone to handle the work of investing, but the responsibility for the outcome stays with you.

The Full Story

The pitch and the trap

Portfolio Management Services (PMS) are SEBI-registered products with a minimum investment of Rs 50 lakh. The sales pitch is seductive: instead of a mutual fund’s diluted basket of 50-100 stocks, you get a concentrated portfolio of 15-25 high-conviction picks, run by an elite manager you choose yourself. The slide decks all look the same, the video notes, and the most persuasive number on them is “since inception” returns.

Here is the sleight of hand. Imagine a fund launched in 2018 and the market then ran up over 80% into 2021. Anyone showing “since inception” returns gets to bake that entire boom into their headline number, so 25-30% looks routine. But a person who invested in 2022 and then sat through three years of underperformance has a completely different reality, and the marketing material never mentions them.

SEBI tried to fix this in 2020 by mandating that funds show 3-year, 5-year, 10-year and since-inception returns, net of fees, using a proper time-weighted method. The catch: nobody reads the disclosure document. They read the marketing material, which still leads with “since inception.”

The Marcellus case

Marcellus launched in 2018. Its flagship Consistent Compounders strategy delivered a genuinely excellent first three years: about 27% annualised against the Nifty’s 17%, a real 10-point edge. Books became bestsellers, media coverage exploded, and assets under management (AUM) rocketed to Rs 704 crore by October 2022.

Then conditions changed. Interest rates rose, the valuations of “quality” stocks had run far ahead of themselves, and the strategy broke. Mukherjea himself admitted the failure publicly, naming Asian Paints, Dr Lal PathLabs and Bajaj Finance as positions he should have trimmed. By March 2026 the five-year annualised return was about 1.19% while the Nifty did 10.01% — a gap of roughly 9 percentage points, during one of the strongest market periods.

And these are gross returns. After paying around 2.5% management fees plus a separate performance fee, the picture is worse. The video runs the arithmetic: Rs 50 lakh invested for five years grew to about Rs 53 lakh in this fund, versus roughly Rs 80 lakh in a plain index. A Rs 27 lakh gap from one decision. Investors voted with their feet — AUM bled down quarter after quarter to Rs 2,436 crore, an 80% collapse.

Not one bad apple — a pattern

The video stresses this is not personal to Mukherjea; he is just famous enough to be relatable. It lists other Indian funds with five-year returns trailing the index, and notes that of roughly 400 PMS strategies in India, only about 12 (3%) beat the Nifty. SEBI’s own chairman said in early 2026 that “exaggerated performance claims undermined trust and stole the growth of the entire industry.”

The pattern is global too. Cathie Wood’s ARK Innovation fund fell over 70% from its peak. Bill Ackman lost about a billion shorting Herbalife. Even Warren Buffett lost a few billion exiting IBM, by his own admission. Ray Dalio’s Bridgewater Pure Alpha fund dropped 22% in 2022 and saw $70 billion withdrawn. The classic example: Long-Term Capital Management, run by two Nobel laureates, lost $4.6 billion in four months in 1998 and had to be bailed out to protect the system. And the killer statistic: S&P’s own reports show that over 15-year windows, the majority of active US managers fail to beat their benchmark in zero categories.

Why does this keep happening?

Three structural reasons, all amplified inside PMS:

The size tax. A Rs 500 crore fund can take small, high-alpha bets. A Rs 12,000 crore fund cannot. With a 25-stock cap and SEBI’s 10%-per-stock rule, the manager is forced to buy ever-larger companies — and ends up hugging the Nifty’s biggest names. The investor is effectively buying an index but paying 2.5% for it. Success quietly kills the very alpha that earned it.

Career risk. A manager’s job security depends on beating peers, not the benchmark. Lagging the index by 1% is fine if everyone else does too. Beating it by 5% while a rival beats it by 10% is dangerous. The safe move is “closet indexing” — staying close to the index, minimising tracking error, and charging full freight for index-like returns.

Compounding fees. Even 1% of gross alpha gets eaten by ~2.5% management plus 20% performance fees, leaving the investor underperforming by 1-1.5% a year. Compounded on Rs 50 lakh over a decade, that is roughly Rs 15 lakh gone, before inflation.

What actually to do

The category is not broken, the video argues — the selection is. Some small, disciplined PMS funds (it names SageOne’s Samit Vartak at ~31.5% over 16 years, plus Carnelian, Renaissance, and others) have genuinely outperformed. Their common traits: small AUM, discipline, and low media presence.

The closing frame is the strongest part. Before handing money to any expert — PMS, advisor, doctor, lawyer — ask five questions: How much has AUM fallen, when, and in which fund? Which way are the 3-year and 5-year net returns trending? What is the fund’s capacity to scale before alpha dies? What are the exit loads and lock-ins? And, if you weren’t being sold to, what would you recommend and which index do you benchmark against? An honest manager answers all five; an evasive one tells you everything by dodging. (There is, predictably, a pitch for the presenter’s own advisory firm wedged in here.)

Key Takeaways

“Since inception” returns are the industry’s favourite trick: they bake a past bull run into the headline number and ignore investors who entered later and lost money.
Marcellus’s flagship went from ~27% annualised (2018-21, +10% vs Nifty) to ~1.19% five-year return by March 2026 (-9% vs Nifty), and AUM fell ~80% from Rs 704 cr to Rs 2,436 cr.
The headline returns quoted are gross; after ~2.5% management + 20% performance fees, the net gap versus a cheap index widens further.
Of ~400 Indian PMS strategies, only ~12 (3%) beat the Nifty; SPIVA data shows most active US managers beat their benchmark in zero categories over 15 years.
Three structural failure modes: the size tax (big AUM forces index-hugging), career risk (managers closet-index to protect their jobs), and compounding fees (1-1.5% annual drag becomes ~Rs 15 lakh over a decade on Rs 50 lakh).
Successful PMS funds share three traits: small AUM, discipline, and low media presence.
You can outsource the process (research, rebalancing, execution, tax) but never the responsibility — the final decision and its accountability stay with you.
Five diligence questions to ask any expert: AUM drawdown history, net 3/5-year return trend, capacity to scale, exit loads/lock-ins, and what they’d recommend if not selling to you.

Claude’s Take

The core argument is sound and well-evidenced — the active-versus-passive math, the survivorship bias in “since inception” numbers, and the three structural drags (size, career risk, fees) are all real and well-documented in academic finance. SPIVA reports do show exactly the dismal active-management hit rate quoted. The Marcellus numbers are public and the AUM collapse is verifiable from SEBI disclosures. None of the load-bearing claims are invented.

Two caveats. First, this is a content-marketing video for the presenter’s own SEBI-registered advisory firm, so the framing is engineered to make you distrust fund managers and trust a “process partner” instead — note that an advisory fee is also a fee, and the same scrutiny applies. Second, the survivorship logic cuts both ways: the small funds praised as winners (SageOne, Carnelian) are themselves selected after the fact, and some will revert too. The five-question checklist at the end is genuinely useful and product-agnostic, which is why this clears a 7 rather than landing lower. It says one true, important thing clearly, then sells you something — a fair trade if you keep your wallet shut on the way out.

9 Out of 10 Fund Managers Are Wrong. Here's the Math No One Shows You. | Harsh Goela