Quote from atticus:
You're welcome. It's a nice representation of yen strength/weakness due to the flat swap rate. I base all of my yen-options trading in EUR, GBP and USD on CHFJPY price and volatility. I've traded index markets based-upon yen as a leading indicator, but there is significant drift seen in carry markets on index trends. I would be a natural buyer (seller) of yen when the SPX closes on its low (high) of the session.
It's the only yen chart on my screen. It's trading in lock-step with SPX here. It came off the Euro-session highs on this 4-handle move lower in SPX.
I don't watch gold unless I am hedging spot-holdings.