## Maximum Stock Level
A company orders stock, consumes it, and re-orders before it runs out. The Maximum Stock is the highest inventory level reached at any point — typically just after a fresh order arrives, when consumption during the lead time was at its lowest.
### Formula
$$\text{Maximum Stock} = \text{Re-Order Qty} + \text{Re-Order Level} - (\text{Min Consumption} \times \text{Min Lead Time})$$
### Logic
- We had stock = ROL when the order was placed.
- During lead time, minimum consumption × minimum lead time is used up (worst case for over-stocking = least used).
- Then re-order quantity arrives, pushing stock to its peak.