You can see in the photo, a Cyan line going across the Russell Index.
I have found that the carry trade is alive and well in the US Futures markets, as of about
06/07 the Yen Currency Futures market has a direct implication on US Index futures market, when you have them on the same scale in your chart when they cross it is a buy or sell signal.
I use this set-up on a daily basis and it has proven to be very effective, I also use my Proprietary indicators in every trade
I am not sure why this has been only of late
it may be to hedge currency risk in the Yen carry trade due to the Dollars recent collapse
agents all the worlds currencies