MACRO-ECONOMIC ARBITRAGE- Buy the Yen short the dollar

Both the Nikkei and the S&P have moved in the same direction along w the yen and the dollar. However recently the Dollar has appreciated dramatically while the Yen has depreciated dramatically. It therefore presents an arbitrage opportunity. The US dollar will eventually come back down and stabilize along w the yen rebounding. The problem i'm running into is how long this could take for the market to correct . Anyone have any inputs or comments?

Order cancelled:

I would suspend this trade until we see the FED stop the money supply cut