Inventory Mean Reversion
Inventory mean reversion is the tendency of a trader's inventory to return to a target or neutral level after it has deviated due to market activity. For market makers, this is a vital strategy to ensure they do not become overly exposed to a single direction.
If a market maker buys too much of an asset, they will lower their selling price to attract buyers and reduce their inventory. Conversely, if they sell too much, they will raise their buying price to attract sellers.
This automated adjustment helps manage risk and maintains the market maker's ability to continue providing liquidity. It is a key part of the logic within many algorithmic trading systems, ensuring that risk parameters remain within acceptable bounds while maximizing the opportunity to earn spreads.