Following reasons:
AUD/JPY to be statistically bearish during the pre-last hour before the rollover interest is applied on Wednesday At 15:00 EST. The particular day of the week was chosen because on Wednesday the rollover is tripled compared to normal days (Sunday and Saturday interests fall on Wednesday). It’s unknown why AUD/JPY, a pair with a traditionally positive rollover interest, is sold 1-2 hours before the overnight swap is applied. Perhaps, traders (hedge funds) with big bullish positions prefer this time to partially close their positions without bothering the markets too much.
looks like this system is a fail. maybe when u manage to profit is due to the weakening of yen. now is the weakening of the aussie. thumbs down for this idea but thanks for sharing.