PMS vs Mutual Funds vs Stock Baskets: Structure, Costs and Transparency

Portfolio management services, mutual funds and stock baskets are three different legal wrappers around the same underlying activity of holding equities according to a strategy. The structural difference that drives almost everything else is who holds the securities: a mutual fund holds them on behalf of unitholders, a PMS holds them in the investor’s own name under a mandate, and a stock basket is simply the investor buying the shares directly by following a published model.

Everything downstream, meaning minimum size, fee structure, tax mechanics, disclosure and how you exit, follows from that one difference. This article lays out each vehicle on the same axes and stops short of any recommendation, because which set of trade-offs fits a given investor is a question for a registered professional who knows that investor’s situation.

The three structures, described plainly

Mutual fund. A pooled investment scheme regulated under India’s mutual fund regulations. Money from many investors is pooled into a scheme, the scheme buys securities, and you own units representing a proportional claim on the pool. The value of a unit is the net asset value, computed daily. A trustee company and a custodian sit between the asset manager and the assets, which is a deliberate structural separation. Open-ended schemes accept subscriptions and redemptions on an ongoing basis at NAV.

Portfolio management service. A discretionary or non-discretionary mandate under India’s portfolio manager regulations. The securities are held in an account in the investor’s own name, and the portfolio manager transacts under a power of attorney or on instruction. There is no pooling of ownership: each client has their own portfolio, which can be customised to that client. Regulation currently sets a minimum investment for a PMS client, most recently at fifty lakh rupees, and the applicable threshold should always be checked against the current rules rather than assumed.

Stock basket. A published model portfolio of listed securities with defined weights, delivered through a broker or platform. When you subscribe, the platform places the orders and the shares land in your own demat account. When the model is updated, you are prompted to execute the rebalance. Baskets are typically offered by entities registered as research analysts or investment advisers, and the regulatory obligations differ between those two categories, which is worth checking for any specific offering.

Side by side on the axes that matter

Axis	Mutual fund	PMS	Stock basket
Who holds the securities	The scheme, on behalf of unitholders	The investor, in their own account	The investor, in their own demat
What you own	Units of a pool	The individual securities	The individual securities
Minimum size	Small, often a few thousand rupees	High, set by regulation	Cost of one unit of the basket
Customisation	None, the scheme is one portfolio for all	Possible, per client	Limited, you follow the model
Cost structure	Expense ratio, capped by regulation	Negotiated fees, often fixed plus performance	Subscription fee plus your own brokerage and taxes
Portfolio visibility	Periodic disclosure of full holdings	Continuous, it is your account	Continuous, it is your account
Rebalancing execution	Done inside the fund	Done by the manager in your account	Done by you, on prompt
Exit mechanics	Redeem units at NAV	Liquidate the portfolio or transfer securities	Sell the underlying shares

Costs, compared structurally rather than numerically

Mutual funds charge a total expense ratio that covers management, administration and, in regular plans, distribution commission. That ratio is subject to regulatory caps that step down as scheme assets grow, and it is accrued daily against NAV, so returns you see are already net of it. Transaction costs inside the fund sit outside the expense ratio and are borne by the scheme. The compounding effect of the fee layer is worked through in expense ratio impact on returns.

PMS fees are contractual rather than capped in the same way, and commonly combine a fixed fee on assets with a performance fee above a defined hurdle, subject to regulatory requirements on how performance fees are computed, including high-water-mark style protections. Brokerage, custody, taxes and other transaction charges are typically charged to the client account in addition. The important structural point is that the fee schedule is a negotiated document, so reading it is part of the diligence rather than an afterthought.

Stock baskets typically charge a subscription or access fee for the model, while every trade cost, brokerage, securities transaction tax, stamp duty and exchange charges, is incurred directly by the investor at execution. Because the investor executes rebalances themselves, the realised cost depends on how promptly and at what prices they act. That makes turnover a direct and visible cost rather than an embedded one.

Across all three, the cost that is hardest to see is not the fee but the trading friction: spread, impact and timing. It is embedded and invisible in a fund, charged to the account in a PMS, and paid trade by trade in a basket.

Tax treatment, at a structural level

This section describes mechanics, not planning, and rates and holding periods change with legislation, so the current law should always be checked. See short-term vs long-term capital gains in India for the underlying concepts.

The structural distinction is straightforward. In a mutual fund, the scheme is a pass-through and internal rebalancing does not create a taxable event for the unitholder. Your taxable event occurs when you redeem or switch units, and the holding period is measured on your units, not on the underlying shares. That means a fund can trade heavily inside the pool without generating a tax consequence for you until you exit.

In a PMS and in a stock basket, you own the securities directly. Every buy and sell in your account, including every rebalance, is your transaction. Each holding has its own acquisition date and cost, so holding periods and gains are computed security by security. Rebalancing therefore has a tax consequence in the year it happens, which is one reason tax on portfolio rebalancing is a live consideration for directly held portfolios in a way it is not for pooled units.

Neither treatment is inherently superior. Deferral inside a pooled vehicle has value; direct ownership gives you visibility and control over when gains are realised, and the ability to manage that timing yourself. Which matters more depends on facts specific to the investor.

Transparency and comparability

Mutual funds disclose full portfolios periodically under a standardised format, publish a daily NAV, and report returns on a prescribed basis against a designated benchmark. That standardisation is what makes cross-fund comparison feasible at all, and it underpins studies like the SPIVA scorecard and workflows like comparing fund manager portfolios at scale.

PMS providers report performance under their own regulatory framework, including disclosure documents and periodic client reporting, but the comparability across providers is weaker than across mutual funds because portfolios are client-specific and composite construction can vary. Reading how a reported composite is built matters as much as the number itself.

Stock baskets are the most transparent about holdings, since the portfolio is your own account, but performance presentation varies widely and model or backtested histories are common. Any model track record inherits every hazard of a backtest, including the ones described in common backtesting mistakes and survivorship bias in backtests.

What this comparison does not tell you

• It does not rank the three. Each is a legitimate structure serving different sizes, needs and levels of involvement. Nothing here says one is better.
• It does not cover any specific provider, scheme or basket. Fees, mandates and disclosure quality vary enormously within each category, and the category label tells you nothing about a specific offering.
• It does not settle tax outcomes. Rates, holding periods and definitions change. Only current law and a qualified tax adviser can answer for a specific investor.
• It does not address suitability. Minimum size, liquidity needs, time horizon, concentration tolerance and the effort you can put into execution all bear on the choice, and none of them are addressed here.
• It does not compare performance. Track records across the three are not measured on a common basis, so a like-for-like performance comparison is genuinely difficult and often not meaningful.

The practical takeaway is procedural rather than directional: identify who holds the securities, read the actual fee schedule, understand when a taxable event is created, and check what the reported track record is really measuring. Those four questions separate the vehicles far more usefully than any label does.

Related reading

• Portfolio metrics explained: the hub for how portfolio performance and risk are measured.
• Expense ratio impact on returns: the arithmetic of a recurring fee over long horizons.
• Index funds vs ETFs in India: two passive wrappers, compared on the same structural axes.
• Comparing fund manager portfolios at scale: looking across many portfolios rather than one at a time.
• Best mutual fund research tools in India: what a research stack needs to compare vehicles fairly.

This article is educational. Altys Labs is not a registered research analyst or investment adviser, and nothing here is investment advice or a recommendation to buy, sell, or hold any security.