Liquidity Risk

Liquidity risk is the risk that an investor cannot sell an asset quickly at a fair price when they need to. Howard Marks treats liquidity as transient and paradoxical: it is usually plentiful when investors do not care about it and scarce when they need it most.

The key mistake is assuming that the liquidity visible in good times will exist during stress. Vehicles can promise daily trading, but they cannot be more liquid than the assets they hold. If many holders want out at once, the vehicle may trade at a discount, force underlying sales, or transmit pressure into the market.

Mechanism

Liquidity disappears when:

• Many holders want to sell at the same time.
• Dealers or banks reduce balance-sheet support.
• Funds face redemptions and must sell regardless of price.
• Leverage creates margin calls.
• Investors rely on market prices rather than durable intrinsic value.

Marks' Rule

Prepare for illiquidity by owning assets that can be held through stress, using vehicle structures that allow patience, avoiding fragile leverage, and aligning clients/managers around long-term expectations.

Liquidity can turn from comfort into danger when it encourages trading, short-termism, and false confidence that exits will be available in a crisis.

Sources

• the-complete-collection-howard-marks — Liquidity memo (2015), plus recurring GFC/fire-sale discussions.