In plain English
What Asian session means
The Asian session is the part of the global FX day when trading activity shifts to Asia-Pacific markets. Liquidity can be strongest in yen pairs and in currencies linked to the region, while some major pairs trade more quietly than during London or New York. The session is a convention used by traders and brokers.
Why it matters
Asian hours shape overnight price action for traders in Europe and the Americas. They can also matter for pairs tied to Japanese, Australian, or New Zealand markets, and for carry and risk sentiment. Knowing the session helps traders interpret thin liquidity and overnight gaps.
Example
If USD/JPY drifts in a narrow range during the Asian session and then breaks higher during London hours, the earlier move may reflect a quieter market with fewer participants. The session label helps explain the pattern.
Quick answers
Common questions
Does the Asian session mean only Tokyo?+
No. It is a broad label for the Asia-Pacific trading period, though Tokyo is often the best-known center.
Is liquidity always low in the Asian session?+
No. Liquidity can be high in yen pairs and region-linked currencies, but many non-Asian pairs are often thinner than during London.
Sources