balance of exchange
A financial term referring to the net balance of foreign exchange transactions, often used in contexts like trade surplus/deficit or currency exchange balance.
The balance of exchange was in surplus this month.
貿易収支 is 'trade balance' focusing on goods and services, whereas 為替尻 is a broader term for the balance of exchange, including capital flows.
Compound of 為替 (かわせ, 'exchange') and 尻 (しり, 'end' or 'balance'), referring to the final balance of exchange transactions.