USD/JPY marginally firmer on day, presently at 86.80 from around 86.65 when I arrived.

Talk of Kampo residing on the bid just below 86.50 will be lending some tenuous support. And on a holiday too. Sell orders noted up at 87.00/30 and more at 87.50/60.

Talk decent-sized 86.65 option expiries at todays New York cut and also smaller sized 86.90 expiries.