Central Bank Intervention
When governments step in to control their currency's value
Definition
Central bank intervention is the direct action taken by a central bank to influence the value of its currency in the foreign exchange market. Interventions can be direct (buying or selling currency in the spot market) or indirect (verbal guidance or interest rate changes). Interventions are used to prevent excessive currency moves that could harm the economy — a currency too strong hurts exports, too weak fuels inflation. The Bank of Japan, Swiss National Bank, and others are known for currency market interventions.
Example
In 2022, the Japanese Yen weakened to 151 JPY per USD — a 32-year low. The Bank of Japan intervened by selling US dollars and buying yen, spending an estimated $20 billion in a single day. The yen strengthened 4% instantly. The intervention signal alone caused many speculative traders to close short-yen positions.
Related Terms
Frequently Asked Question
What is central bank intervention?
Central bank intervention is when a central bank directly buys or sells its currency to influence its exchange rate. It aims to stabilize a currency that has moved too far — protecting exports or fighting imported inflation.
APA Citation
Last updated:
· Source: VixShield Trading Glossary — From SPX Mastery by Russell Clark
⚠️ Not financial advice. This definition is educational content from the SPX Mastery book series by Russell Clark (VixShield). Past performance is not indicative of future results. Trading options involves substantial risk of loss and is not appropriate for all investors. Always paper trade before risking real capital.