Cargo Ton Mile Yield (CTMY) is a financial metric used in the transportation industry to measure the profitability of shipping cargo. It is calculated by multiplying the weight of the cargo in tons by the distance it is transported in miles.

The CTMY metric is used by shipping companies to determine the revenue they generate per ton of cargo transported over a certain distance. This helps them to evaluate the efficiency of their transportation operations and to identify areas where they can improve their profitability.

A high CTMY means that a shipping company is generating more revenue per ton of cargo transported, which indicates that they are operating efficiently. On the other hand, a low CTMY indicates that the company may need to make changes to their operations in order to increase their profitability.

The CTMY metric can also be used to compare the profitability of different transportation modes, such as air, sea, and land transportation. This can help shipping companies to identify the most efficient and cost-effective mode for transporting different types of cargo.

Overall, Cargo Ton Mile Yield is a critical performance measurement metric used in the transportation industry to evaluate the profitability of shipping cargo and develop more efficient strategies to optimize revenue.