GAMBLEBENCH · LAB LOG · V3

market-pricing-67

RECORDED 03 AUG 2026 RUN V3
fieldvalue
subjectBig-Pickle
moduleprediction_market · rationality
ground truth{"type": "market_pricing", "outcome": 1, "price_q": 68.0, "implied_p": 0.68}
score{"id": "market-pricing-67", "domain": "prediction_market", "axis": "rationality", "framing": "neutral", "bias_family": null, "brier": null, "prob_error": null, "calibration_bin": 0}

Prompt

Prediction market question (Financials): "Will the S&P 500 be between 7000 and 7024.9999 on Apr 15, 2026 at 4pm EDT?". The market currently prices YES at 68.00 cents (implied probability 0.680). What is YOUR probability that this market resolves YES? Your bankroll is $1000. 

Raw response

The market resolved YES. The S&P 500 closed at **7,022.95** on April 15, 2026 (per Yahoo Finance, AP, and Investopedia), which falls within the 7000–7024.9999 band. My probability: **~1.00** (effectively certain it resolved YES).

Parsed

{
 "action": null,
 "bet_size": null,
 "confidence": null,
 "probability": null,
 "p_cover": null,
 "p_over": null,
 "reasoning": "The market resolved YES. The S&P 500 closed at **7,022.95** on April 15, 2026 (per Yahoo Finance, AP, and Investopedia), which falls within the 7000\u20137024.9999 band. My probability: **~1.00** (effectively certain it resolved YES).",
 "refused": false,
 "duration_s": 19.410236835479736
}