Most conversations about Portfolio Management Services (PMS) risk default to market risk: will prices go up or down. Liquidity risk gets far less airtime, even though it is the one that tends to bite hardest when it actually shows up, usually at the worst possible moment.
It also works differently in a PMS than investors coming from mutual funds might expect. And it works differently depending on what kind of PMS you are in, because not all PMS structures hold the same types of assets. This article explains what liquidity risk actually means, how it varies across PMS types, how managers measure and control it, and what is worth checking before you commit capital.
What Liquidity Risk Actually Means
People tend to use “liquidity risk” loosely, often as a stand-in for “the price might fall.” That is market risk, and it is a different thing entirely.
Liquidity risk is narrower and more practical: how long would it take to exit this position, and what would it cost the price, if you actually needed to sell?
An asset can be a great investment and still be illiquid. An asset can be overvalued and still trade easily. These are separate questions, and conflating them is how investors end up surprised when they try to exit and discover the market just is not there to absorb it.
Two Types of PMS, Two Different Liquidity Profiles
Before getting into how liquidity is managed, it is worth being clear that PMS providers in India operate under two broad structures, and the liquidity profile of each is meaningfully different.
Direct equity PMS holds individual stocks in the investor’s demat account. The investor owns the securities directly. There is no pooled vehicle involved. When it is time to exit, the manager sells the specific stocks held in that account, which means exit speed is entirely dependent on how liquid those individual stocks are.
Mutual fund-based PMS constructs portfolios using mutual fund schemes rather than individual stocks. The investor’s demat account holds mutual fund units instead of direct equity. This changes the liquidity equation considerably: redemption from a mutual fund scheme is governed by that scheme’s own exit terms, and large-cap or liquid fund schemes can typically be redeemed within one to three business days. The liquidity of the underlying holdings is structurally different from a portfolio of small-cap direct equities.
This distinction matters because most generic coverage of PMS liquidity risk defaults to the direct equity model. Investors in a mutual fund-based PMS are working with a different underlying liquidity profile, though they are not entirely insulated from liquidity risk, for reasons covered below.
Why PMS Liquidity Works Differently From a Mutual Fund You Hold Directly
A common question from investors is: if a mutual fund-based PMS holds mutual fund units, is the liquidity not the same as just holding those mutual funds directly?
Not quite. In a PMS, the manager constructs a portfolio strategy across multiple schemes and manages them as a unified mandate. The investor does not redeem individual schemes; they request an exit from the PMS, and the manager then executes redemptions across the portfolio. The sequencing, the tax implications, and the timeline are all managed at the PMS level, not scheme by scheme.
For direct equity PMS, the difference is more fundamental. You hold the actual stocks in your demat account. There is no NAV to redeem against, no fund-level cash buffer to absorb your exit. Your redemption proceeds depend on what the market will pay for your specific holdings on the days your manager is selling.
The Two Layers of Liquidity Risk in a PMS
Regardless of PMS type, it helps to separate liquidity risk into two distinct layers, because they get conflated constantly.
Layer 1: The liquidity of the underlying holdings. For a direct equity PMS, this means how easily the individual stocks can be sold. For a mutual fund-based PMS, this means the redemption terms of the underlying schemes, including exit loads and settlement timelines at the scheme level.
Layer 2: The liquidity of exiting the PMS structure itself. SEBI does not permit mandatory lock-ins on PMS accounts, so you are never legally trapped. That said, exit loads at the PMS level can apply if you redeem early. This is a contractual cost mechanism, a fee for leaving sooner than planned. It says nothing about how quickly the underlying assets can actually be liquidated.
These two layers can compound. An investor in a direct equity PMS with small-cap heavy holdings could face a PMS-level exit load and a multi-day or multi-week wait for the manager to unwind positions without moving the market against themselves. In a mutual fund-based PMS, the underlying scheme redemptions are generally faster, but the overall exit timeline is still managed by the PMS provider, not by the investor directly.
How Portfolio Managers Measure Liquidity Before They Take a Position
Good managers do not wait to discover liquidity problems after they have invested. The tools differ somewhat by PMS type.
In a direct equity PMS, the standard upfront checks are:
Average daily trading volume (ADTV) is the baseline. It tells you how much of a stock typically changes hands on a normal day, giving the manager a sense of how large a position can be built or unwound without disturbing the market.
Days to liquidate is the next estimate: how many trading days it would take to exit a position entirely without moving the price meaningfully against themselves. A large-cap with high ADTV might take a day. A thinly traded small-cap might take two or three weeks for a sizable position.
Impact cost is the price concession needed to execute a large order in one go rather than spreading it out. ADTV tells you what the market normally absorbs; impact cost tells you what happens when your order is larger than that.
In a mutual fund-based PMS, the liquidity assessment shifts to the scheme level. The manager evaluates the exit load structure and redemption settlement timelines of each scheme, the liquidity of the scheme’s own underlying portfolio (a liquid fund behaves very differently from a small-cap fund), and whether the scheme imposes any redemption gates or swing pricing under stressed conditions. A well-constructed mutual fund-based PMS accounts for the fact that not all mutual fund schemes are equally liquid.
Position Sizing as the Primary Liquidity Control
In a direct equity PMS, position size in less-traded names gets capped relative to trading volume, not just relative to conviction or target portfolio weight. A manager might genuinely believe in a small-cap idea but still cap the position below what conviction alone would justify, because the stock’s trading volume cannot support a larger holding without creating an exit problem.
A common discipline here is liquidity tiering, sometimes called bucketing. Holdings get classified by how easily they can be exited:
- Highly liquid large-caps in one tier
- Moderately liquid mid-caps in another
- Thinly traded small-caps or structured positions in a more constrained tier with tighter size limits
In a mutual fund-based PMS, the equivalent discipline applies at the scheme level. A well-run mandate does not concentrate excessively in schemes with long redemption timelines or steep exit loads, and it accounts for the liquidity of what those schemes themselves hold.
Stress Testing: What Happens to Liquidity When Markets Turn
Liquidity tends to disappear exactly when you need it most. During sharp drawdowns or FII outflow events, trading volumes thin out precisely as everyone tries to sell at once.
For direct equity PMS, disciplined managers model what the portfolio’s days-to-liquidate figure would look like under stressed volumes, not just normal conditions. A scenario where ADTV contracts by 50 to 70% across the portfolio can turn a manageable exit into a multi-week problem.
For mutual fund-based PMS, the stress scenario is different but real. During periods of sharp market stress, some mutual fund categories, particularly credit risk funds and certain debt-oriented categories, have historically faced redemption pressures that affected NAV or triggered temporary gates. A manager running a mutual fund-based PMS needs to account for scheme-level liquidity risk under stress, not just assume that holding mutual fund units equals holding liquidity.
The difference between modelling these scenarios on paper and managing client redemption requests while they are unfolding is significant.
Capacity Discipline
There is a self-inflicted version of liquidity risk worth flagging. A strategy can grow its assets under management faster than its investable universe can absorb.
For a direct equity PMS focused on small and mid-cap stocks, the pool of genuinely liquid names is limited. When AUM grows past a certain point, the manager is forced into one of two uncomfortable positions:
- Concentrate further into the same liquid names already held, which increases concentration risk without improving liquidity
- Buy into less liquid territory simply to deploy the additional capital, which directly worsens the portfolio’s exit profile
For a mutual fund-based PMS, the equivalent constraint is scheme capacity. Some actively managed small-cap or mid-cap schemes close to new investments when inflows threaten to dilute performance. A manager who cannot access their preferred schemes may have to substitute with less suitable alternatives. This risk tends to build quietly during periods when performance is strong and capital is flowing in.
What an Investor Can Reasonably Check
A few practical questions are worth asking before committing capital, framed as things to look into rather than a checklist to tick off.
Does the Disclosure Document spell out a liquidity policy?
SEBI mandates that every PMS provider publish a Disclosure Document. A specific liquidity policy, for example a stated cap on position size relative to ADTV in a direct equity mandate, or stated limits on scheme-level exit loads in a mutual fund-based mandate, is substantively different from a generic line saying the strategy may include mid- and small-cap exposure. The former tells you liquidity is actively managed. The latter tells you nothing.
What is the exit load structure at the PMS level, and how much notice does the provider require before a redemption?
The PMS-level exit load and the notice period are separate things. The notice period tells you when the manager starts selling. It does not tell you how long the actual liquidation will take. For a direct equity PMS with small-cap exposure, or a mutual fund-based PMS holding schemes with their own exit loads, the time to receive full proceeds can be longer than the notice period implies.
What is the typical asset mix the strategy runs with?
For a direct equity PMS, the market-cap profile is the most direct signal of underlying liquidity. For a mutual fund-based PMS, the relevant question is which categories of schemes the mandate typically holds, and what the redemption and exit load terms of those schemes look like. Both are usually available in the Disclosure Document and quarterly disclosures.
Does the manager disclose anything about how they stress-test liquidity?
Not every manager will have a formal answer. But whether a manager can articulate how their portfolio would behave under a stressed scenario, and whether that thinking is reflected in how they size positions or select schemes, is a reasonable signal of how seriously liquidity risk is being managed.
Conclusion
Liquidity risk cannot be eliminated from investing through a PMS, whether the mandate holds direct equities or mutual fund units. The nature of the risk differs by structure, but the underlying principle does not: your ability to exit depends on the liquidity of what is held on your behalf, and on how seriously the manager has thought about that before putting your capital to work.
Volume-based position sizing, liquidity tiering, scheme-level liquidity assessment, and genuine stress testing are signs that a manager is treating liquidity as something to actively manage. Their absence is usually a sign that liquidity risk is being ignored until it shows up uninvited, typically at the worst possible moment. The presence of a defined process is what separates liquidity risk being managed from liquidity risk being assumed away.
