Why did RTX's other fees fluctuate so much?

The fluctuation in RTX's other fees can be attributed to a combination of factors:

1. **Foreign Exchange Risk**: RTX has significant international operations, which exposes it to foreign exchange rate fluctuations. These fluctuations can affect the company's financial performance, including its other expenses. For instance, changes in foreign exchange rates can impact the cost of raw materials, labor, and transportation, which are all reflected in the company's other expenses.
2. **Tariffs and Trade Policies**: The company's products, such as RTX 50 Series GPUs, are subject to tariffs and trade policies. Changes in these policies can affect the cost of goods sold and, consequently, other expenses. For example, tariffs on imported components can increase the cost of production, leading to higher other expenses.
3. **Economic Conditions**: General economic conditions, such as inflation and interest rates, can influence the cost of borrowing and the overall economic environment in which RTX operates. These conditions can impact the company's other expenses, such as interest payments and losses on the sale of assets.
4. **Operational Factors**: Variations in production levels can directly impact the cost of manufacturing and, by extension, other expenses. For example, if RTX increases or decreases production, it can affect the cost of raw materials, labor, and overhead costs, which are all part of the company's other expenses.

In summary, the fluctuation in RTX's other fees is likely a result of a complex interplay of foreign exchange risk, tariffs and trade policies, economic conditions, and operational factors. These factors can cause significant variations in the company's other expenses, which in turn affect its financial performance.