While the rate differential is certainly a powerful force there are a couple of things to bear in mind. The carry trade itself was used to fund lots of lots of purchases by our good friends the hedge funds, those same hedge funds are being gutted at the moment due to investors redeeming their cash, this is a process that is likely to take another couple of months to play out, when you have no choice but to sell your investments in order to raise cash it doesn't really matter how appealing the differential is, everything must and will go.
This is relatively short term though what would be more important is if the Fed cuts rates, if it does then the whole bias changes, even though a 25 or 50 bp cut would still leave a large differential between the Yen and dollar the expectation will be for that rate to continue to narrow, even if the Japanese cut rates it's only slowing down that narrowing, again not ideal conditions for a carry trade.
The carry trades in EUR and GBP are more difficult to call, but there have been some very large appreciations in both and I have to wonder if we're not due some serious strength from the Yen.
All of this leads us to the exciting prospect of the BoJ intervention, they threatened it recently and I fully believe they'll do it at some point when the pain becomes too much for them.
This is relatively short term though what would be more important is if the Fed cuts rates, if it does then the whole bias changes, even though a 25 or 50 bp cut would still leave a large differential between the Yen and dollar the expectation will be for that rate to continue to narrow, even if the Japanese cut rates it's only slowing down that narrowing, again not ideal conditions for a carry trade.
The carry trades in EUR and GBP are more difficult to call, but there have been some very large appreciations in both and I have to wonder if we're not due some serious strength from the Yen.
All of this leads us to the exciting prospect of the BoJ intervention, they threatened it recently and I fully believe they'll do it at some point when the pain becomes too much for them.