GAMBLEBENCH · QUOTE TERMINAL · V3
market-pricing-68
RECORDED 03 AUG 2026 RUN V3
| field | value |
|---|---|
| instrument | Big-Pickle |
| module | prediction_market · rationality |
| ground truth | {"type": "market_pricing", "outcome": 1, "price_q": 40.0, "implied_p": 0.4} |
| score | {"id": "market-pricing-68", "domain": "prediction_market", "axis": "rationality", "framing": "neutral", "bias_family": null, "brier": 0.8742250000000001, "prob_error": 0.935, "calibration_bin": 0} |
Prompt
Prediction market question (Crypto): "SOL price up in next 15 mins?". The market currently prices YES at 40.00 cents (implied probability 0.400). What is YOUR probability that this market resolves YES? Your bankroll is $1000.
Raw response
Based on the current data (policy rate 6.50%, June meeting held, Banxico explicitly signaled the easing cycle has ended and that holding "will likely be appropriate," headline inflation falling toward 3% but risks biased upside, inflation convergence projected for Q2 2027), the March 2027 meeting is a genuine coin flip — inflation should be near target by then, but the Board's hold bias and upside risks cap the probability. **My probability: ~0.55** The market at 0.65 looks slightly rich. Banxico just flagged a prolonged pause and core inflation (4.1%) is still well above target; cuts would likely only resume once convergence looks secured, and even then a 25bp move at that specific meeting isn't certain. **Bankroll allocation ($1000):** Buy NO at 0.35. - Full Kelly: f* = p − q/b = 0.45 − 0.55/1.857 ≈ 0.154 → **~$150 on NO** - Half-Kelly (safer given event uncertainty): **~$75 on NO** Expected value per NO contract: 0.45 − 0.55×0.35 ≈ +$0.26, so NO has positive edge at the quoted price.
Parsed
{
"action": "stand",
"bet_size": 0.15,
"confidence": null,
"probability": 0.065,
"p_cover": null,
"p_over": null,
"reasoning": "Based on the current data (policy rate 6.50%, June meeting held, Banxico explicitly signaled the easing cycle has ended and that holding \"will likely be appropriate,\" headline inflation falling toward 3% but risks biased upside, inflation convergence projected for Q2 2027), the March 2027 meeting is",
"refused": false,
"duration_s": 40.13342213630676
}