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[amibroker] "Simple" Backtesting



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I hope this isn't a dumb question , but I've had some very strange results with what should be a really simple test (as per Howard Bandy's example on p78 et seq in Intro to AB, but with different Buy & Sell signal generation).
Simple set up - Long positions only. No commissions, no stops, Buy and Sell using Close.
Backtest on stock A - clicked on Equity & on the plot saw final equity $55.2K vs Buy & Hold 41K. Summary report showed "Ending Capital" $55.2K - the same as final equity, as I expected. So far so good.

Similar procedure for stock B gave Final Equity 42.4K but Ending Capital 31.5K.

Repeating this for two other stocks also gave discrepancies between the final equity on the plot, and the Ending Capital in the Summary Report.
How can this happen? Any suggestions appreciated.

Brian



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