Plain-English explanations and worked examples for Fixed, Proportional, Percent of Bankroll, Multiplier, and Kelly sizing.
Sizing mode controls how large each copied trade is relative to the original. Getting this right is more important than picking the right wallet — a great wallet copied with too much size can still wipe out a bot before a recovery.
What it means: Every trade uses exactly the same dollar amount, regardless of how large the original trade was.
Example: You set fixed = $25. The wallet bets $5,000 on a market. Your bot bets $25. The wallet bets $200 on another market. Your bot still bets $25.
Best for: Beginners who want a hard ceiling on how much any single trade can lose.
What it means: Your trade is a fixed fraction of the wallet’s trade.
Example: You set ratio = 0.01 (1%). The wallet bets $5,000. Your bot bets $50. The wallet bets $200. Your bot bets $2.
Best for: Following the wallet’s own sizing logic — big bets stay big (relatively), small bets stay small.
What it means: Each trade uses a fixed percentage of your current bankroll, regardless of what the wallet bet.
Example: You set 2% of bankroll, and your bot has $2,000. The wallet bets $50 on a market. Your bot bets $40 (2% of $2,000). If your bankroll grows to $2,500, the next trade would be $50.
Best for: Keeping position sizes in proportion to how your account is actually doing.
What it means: Your trade is the wallet’s trade multiplied by a fixed number.
Example: You set multiplier = 0.5. The wallet bets $100. Your bot bets $50. The wallet bets $400. Your bot bets $200.
Best for: Scaling a strategy up or down consistently while preserving the wallet’s original bet ratios.
What it means: The Kelly criterion is a formula that sizes bets based on your estimated edge in a market. Bigger bets when the edge is larger, smaller bets when the edge is smaller. PolyHuntr caps Kelly at a configurable maximum so a single high-confidence trade can’t exceed your safety limit.
Example: On a market where AI analysis shows a strong edge, Kelly might size the bet at $80. On a market where the edge is thin, it might size the bet at $10.
Best for: Users who want mathematically optimized sizing and are comfortable with variable position sizes.
Every bot can override the account-level sizing defaults. Go to a bot’s settings on the My Bots page to set its own mode and values. This means you can run one bot in Fixed mode at $10 and another in Kelly — at the same time.
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