Japan govmt. spokesman says there are volatile moves in financial markets

Japan's Deputy chief cabinet secretary Seko:

• Desirable for UK to stay in EU
• Government closely watching markets including impact from UK referendum
• No comment on specific FX levels related to Brexit vote
• There are volatile moves in financial markets

That "There are volatile moves in financial markets" is code for 'we are watching to intervene." That is (I've said this many times, but again) G7 & G20 agreements narrow the scope for intervention, but if the Japanese administration conclude yen moves are volatile and/or one-way, then that's their excuse.