What is margin on volume, and why not ROI?
Margin on volume — Net profit divided by traded volume over a period. A margin on turnover — not a return on capital.
Polymarket's public data gives each wallet's net P&L and traded volume. It does not give deposits, withdrawals, or capital at risk. Many trackers divide P&L by volume and call it ROI. It is not: a wallet that turns $200,000 to make $20,000 shows 10%, whether it risked $5,000 or $150,000 to do it.
Margin on volume is still useful as one ranking input — it separates high-turnover grinders from lucky one-shot wallets — as long as it is named honestly. Stratex Hub shows it under that name with a tooltip on every page.
See it on real wallets
Every wallet page on Stratex Hub shows this measure with the numbers behind it. Start from the re-ranked leaderboard or browse all analysed wallets; the methodology has the formulas.