Inventory Risk
Inventory Risk is the financial exposure a market maker faces when holding an unbalanced position of an asset. Since market makers provide both buy and sell quotes, they often end up holding more of an asset than they desire if the market moves in one direction.
To mitigate this, they must continuously adjust their prices to attract offsetting trades or hedge their positions using derivatives. In the volatile world of cryptocurrency, inventory risk is significantly higher due to rapid price swings and the difficulty of hedging on-chain assets.
If a market maker cannot rebalance their inventory, they face the risk of severe losses if the price crashes or spikes. This risk is a primary factor in determining the width of the bid-ask spread and the availability of liquidity.
Understanding inventory risk helps explain why market makers behave the way they do during periods of extreme market activity. It is a fundamental concept in quantitative finance and market making.