Sharpe, your first read.
The Sharpe ratio is the universal grade of a strategy: how much you earn for each unit of risk taken. The higher, the better.
Reading benchmarks: above 1 = decent. above 1.5 = good. above 2 = excellent.
Depending on the pair and the period, the Sharpe of a default config can be excellent or downright negative. That is exactly what you look at on the backtest before you sign.
Sortino, risk on the loss side.
Sortino is the Sharpe in an improved version. It looks only at the losses, ignoring sudden surges. Logical: when you win, who cares about volatility.
Reading it above 2 on a backtest means observing that the behavior during losses stayed under control over the period, not just on average.
METRIC 03 / 06 · MAX DRAWDOWN
Drawdown, the worst drop.
The "max drawdown" is the worst drop observed on the capital. From the highest peak down to the lowest trough before recovering.
It is the most honest metric, and it varies enormously: depending on the pair, a default config can show a moderate drop or a very severe one, down to a large part of the capital. The leverage and allocation you choose amplify it.
To look at first: before signing, run the backtest and ask yourself whether you could absorb the worst drop shown, without panicking and cutting everything.
Calmar, return relative to the pain.
Calmar combines two things: the annual return divided by the worst drawdown. It is a measure of "peace of mind": how much you earn per unit of potential pain.
Above 3, we consider that the behavior justifies the drawdown risk over the period. A negative Calmar, on the other hand, says you paid the pain without the return.
METRIC 05 / 06 · PROFIT FACTOR & SAMPLE
Profit factor and sample size.
The profit factor compares everything the strategy wins to everything it loses. Under 1, it loses money. Above 1.3, the gains clearly exceed the losses, fees included.
Also look at the number of trades: our strategies generate several hundred over the history. A good score on 12 trades is luck, not a statistic.
Many strategies "profitable on paper" rest on 2 or 3 huge wins. Measurable consistency is read on the profit factor and the number of trades, not on return alone.
You read, you decide.
All these metrics are computed over the entire available history, pair by pair, unseen data included. Some default configs come out solid, others not: that is precisely why you keep the last word.
No strategy is "validated in advance" for you. Backtest, compare the pairs, adjust the parameters, then sign. Or not.