| Account value | What it measuresCurrent equity of the wallet | StrengthSizes everything else. A 40% ROI on $3,000 and on $3,000,000 are not the same evidence. | Failure modeSays nothing about how the equity was reached, or whether it was deposited rather than earned. |
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| ROI over a window | What it measuresPercentage return across a fixed period | StrengthQuick comparability across wallets. | Failure modeRewards leverage and entry timing. Deposits and withdrawals distort it badly unless adjusted. |
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| Realised win rate | What it measuresShare of closed trades that were profitable | StrengthDescribes the shape of the edge, not just its size. | Failure modeMeaningless alone: 90% wins funded by rare catastrophic losses is a pre-liquidation profile. |
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| Profit factor | What it measuresGross profit divided by gross loss | StrengthThe single most useful quality metric. Above 1.3 with a large sample is hard to fake. | Failure modeUnstable on small samples, and one outsized win can carry it. |
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| Largest loss vs average win | What it measuresWorst single outcome against typical good one | StrengthExposes tail risk that win rate hides entirely. | Failure modeBackward-looking; the worst loss so far is not the worst loss possible. |
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| Open positions and leverage | What it measuresCurrent book and margin used | StrengthShows present risk rather than past outcome, including concentration. | Failure modeA snapshot only. The book can change completely within minutes. |
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| Fill history length | What it measuresDays between oldest and newest fill | StrengthDetermines whether any of the above is statistically meaningful. | Failure modeLong history on a dormant wallet proves nothing about current activity. |
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