Quantitative Easing (QE)
Fundamental Analysis
Quantitative easing is a central-bank policy of buying assets to inject money into the economy, which typically weakens the currency involved.
What is quantitative easing?
Quantitative easing (QE) is an unconventional monetary policy tool in which a central bank creates new money to buy financial assets — typically government bonds, and sometimes other securities — directly from the market. It is usually deployed when the standard tool of cutting interest rates has already been used to its practical limit (rates near zero) but the central bank judges that the economy still needs further support.
How QE is meant to work
By buying large quantities of bonds, a central bank pushes bond prices up and their yields down, which lowers longer-term borrowing costs throughout the economy. It also increases the amount of money circulating in the banking system, with the aim of encouraging lending, investment, and spending — ultimately supporting growth and helping push inflation back toward target when it has fallen too low.
Why QE tends to weaken a currency
Expanding the money supply increases the total quantity of a currency in circulation, which — all else equal — tends to reduce its relative value, similar to how increasing the supply of any asset tends to lower its price if demand doesn’t rise to match. QE also typically coincides with very low interest rates, reducing the return available to foreign holders of that currency. For both reasons, the announcement or expansion of a QE program is generally viewed as a dovish signal and tends to put downward pressure on the currency involved, while the winding-down of QE (“tapering”) tends to have the opposite effect.
Why it matters to a trader
QE announcements, extensions, and tapering decisions are major market-moving events, often producing sustained multi-week or multi-month currency trends rather than a single sharp spike. Because QE reflects a structural shift in a central bank’s policy stance, traders treat it as a significant fundamental input alongside interest-rate decisions when forming a medium-term view on a currency.
Quick recap
- QE is a central bank creating money to buy assets, usually government bonds.
- It aims to lower long-term borrowing costs and stimulate growth when rate cuts alone aren’t enough.
- Expanding QE typically weakens a currency; tapering it typically supports the currency.
- QE decisions tend to drive longer, sustained trends rather than single-day spikes.