Forex Guide

The first hour after opening in Tokyo tend to provide the best liquidity of the day and that is when most heavyweight players try to position their way without having much difficulty for the day. Sydney open is more often used as an ambush hour by certain players using the time window till Tokyo open. One rule of thumb is when Yen jumps at Tokyo open the chances are it will continue throughout the day and a few more days. On different point, learn to position trade Yen or any other currency if one is really going to make a big money one day. Fwiw.

One hour from Tokyo open, London open and NY open are the times where most liquidity of the market exist. And that is where market makers are busy setting the trend for the session or even the day. Your observation has a merit because most of the session or daily moves are started either in London open or Tokyo open or NY open. Especially London Open. Other markets are too thin for any good sized traders to make their market views felt. Good luck.

London is just a market place where all sorts of Forex folks flock to buy and sell. It does not have to be London folks. It could be anyone from anywhere in the world with deep pockets who start setting the market direction on a given day. Same goes for NY and Tokyo sessions markets. In any case, Tokyo and NY still relatively small markets when compared to London as far as Forex goes.