I just compiled a backtest of inside bars for the USDJPY pair between 2001 and 2008, using a 21 EMA to measure the trend. I'm completely fatigued. This took around eight hours to complete, a great way to spend my Saturday, but I think it's a good indication of my seriousness.
The results of the USDJPY backtest are comparable to the EURUSD, which is excellent, as the USDJPY and EURUSD are one of the least correlated currency pairs. Trading inside bars would be profitable, as seen below.
RESULTS
Trading with the trend
187 trades initiated
Risk:reward ratio = 1:3
Expected return per trade = 19.79%
Risk:reward ratio = 1:2
Expected return per trade = 13.9%
Risk:reward ratio = 1:1
Expected return per trade = 17.65%
Trading against the trend
182 trades initiated
Risk:reward ratio = 1:3
Expected return per trade = 16.48%
Risk:reward ratio = 1:2
Expected return per trade = 13.74%
Risk:reward ratio = 1:1
Expected return per trade = 9.89%
CONCLUSION
It's good to see positive results for a different currency pair. It means that inside bars can be traded beyond the EURUSD. Trading with the trend seems to yield slightly better results, which is expected. Scalping with the trend seems like a safer way of trading with a 1:1 risk:reward ratio.
I'm very pleased. This strategy is looking solid.