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Liquidity Planning: Surviving the Moment You Need Cash

Why a portfolio's returns are decided as much by what it is forced to sell as by what it chose to hold.

Category
Risk Management
Level
Professional
Duration
16 min

Returns are usually discussed in terms of what a portfolio holds. A large part of the outcome is determined by something less visible: what the portfolio would have to sell, and when.

The forced-sale problem

A position sold because the holder chose to sell is a decision. A position sold because the holder had to sell is a different event entirely, and it is where temporary losses become permanent ones.

Three mechanisms force sales, and all of them arrive at the worst possible moment:

  1. Margin calls. Borrowed money must be repaid or collateral topped up when prices fall. The lender decides the timing.
  2. Redemptions. An investor withdrawing capital forces the manager to raise cash from whatever is liquid — which, in a downturn, is usually the positions worth holding.
  3. Expenditure. A commitment that must be met, whether or not markets are cooperative.

The liquidity mismatch

The error is usually structural: liabilities that require cash on demand, funded by assets that cannot be converted to cash on demand.

Three questions resolve whether a mismatch exists:

  • What is the largest amount of cash that might be required on short notice? Not on average — at the worst moment.
  • Which holdings could produce that amount within that timeframe, at a price that would not be damaging?
  • What would the remaining portfolio look like afterwards?

If the answer to the second question depends on markets functioning normally, then the plan assumes a condition that does not hold when the cash is most needed.

Layers of liquidity

A useful structure is to think in tiers, in order of what is drawn on first:

  • Immediate — cash, and instruments that settle quickly with minimal price impact. Sized to cover commitments, not to earn a return.
  • Short notice — liquid securities that can be sold within days without material damage. This is the buffer that prevents a decision made under pressure.
  • Illiquid — the assets that require time to realise fair value. These should be sized against a horizon over which they will not need to be sold.

The point of the layers is that a portfolio should not have to reach the third tier in order to meet a requirement that belongs in the first.

Liquidity in the two senses

The word is used for two different things, and both matter:

  • The asset's liquidity — how easily it trades. A property, a private holding, or an infrequently traded bond may take months to sell at a fair price.
  • The portfolio's liquidity — how much can be raised, in total, from the portfolio as a whole. A portfolio of individually liquid assets may still be illiquid in aggregate if a forced sale of any size moves prices.

In stress, the second is what fails. Assets that are liquid in isolation become correlated in the act of being sold.

Contractual obligations that reduce flexibility

Some commitments bind even when they are inconvenient:

  • Lockup periods on private funds, which prevent withdrawal regardless of need.
  • Notice periods that require days or weeks before capital is released.
  • Collateral requirements that can be triggered by a credit rating change rather than a price move.
  • Covenants that restrict action if a threshold is crossed.

Each is a constraint on the portfolio's ability to respond, and each should be counted when assessing how much flexibility actually exists.

What to do about it

  • Hold a buffer deliberately sized. Not as a return drag, but as the cost of being able to make decisions rather than take whatever the market offers.
  • Match horizons. Assets that need years to realise should be funded by capital that is not needed within those years.
  • Know the trigger points. When exactly does the margin call arrive? What event releases the lockup? What quantity of sales would move the price?
  • Plan the sale order in advance. Which holdings would be sold first, and which would not be sold under any circumstance short of necessity. Deciding in advance is the whole point.
  • Count the illiquid exposure across vehicles. The same manager, or the same underlying exposure, held through several funds, is one liquidity risk, not several.

Eonvera's independent risk management covers liquidity and leverage alongside market risk, concentration and counterparty exposure — because a portfolio's survival depends on more than its positions performing well.