Quote from AAAintheBeltway:
Trend following systems tend to produce about 30-35% win ratios, with large drawdowns and consecutive runs of losing trade of>10.
A 35% win ratio with a high percentage of bankroll invested is a combinatiuon that leads to ruin fast. I think the win rate must be > 50% to avoid ruin. We had a whole discussion about this in another thread.
Just read this article about the performance of trend-following funds this year. It is interesting. The average loss of about 25 known trend-following funds is about -8% for this year. Some are losing more than 25% of their value at the beginning of the year.