thanks for pointing this out, I will fix it. It´s called drawdown and is absolutely normal. Remember that this is for the long term and can have drawdown phases of over half a year (as can be seen in the backtests). If your friend is concerned about this, he trades too high risk. The minimum holding time should be at least 1 year, as every year has been profitable so far.
HIGH RISK WARNING: Foreign exchange trading carries a high level of risk that may not be suitable for all investors.
Leverage creates additional risk and loss exposure. Before you decide to trade foreign exchange, carefully consider your investment objectives, experience level, and risk tolerance.
You could lose some or all of your initial investment. Do not invest money that you cannot afford to lose. Educate yourself on the risks associated with foreign exchange trading, and seek advice from an independent financial or tax advisor if you have any questions.
Any data and information is provided 'as is' solely for informational purposes, and is not intended for trading purposes or advice.
Past performance is not indicative of future results.