{"fact_id":"volatility-breakout-us-sp500-fact-median-sharpe","strategy_slug":"volatility-breakout-us-sp500","claim":"Median Sharpe across 720 grid runs is 0.50.","value":0.5,"value_text":null,"unit":"sharpe_ratio","context":"Full grid of 720 parameter combinations.","supports_verdict":"marginal","source_run_id":null,"search_tsv":"'0.50':8 '720':4,12 'across':3 'combin':14 'full':9 'grid':5,10 'median':1 'paramet':13 'run':6 'sharp':2","cite_url":"https://qbuntu.ai/cite/volatility-breakout-us-sp500-fact-median-sharpe","strategy":{"slug":"volatility-breakout-us-sp500","name":"Volatility Breakout (US S&P 500)","verdict":"marginal","url":"https://qbuntu.ai/strategies/volatility-breakout-us-sp500"},"provenance":{"tier":"shallow","git_sha_z":"bfafe7d","data_source":"kabu STATION REST API + J-Quants daily bars","source_repo":"C:\\Users\\mirac\\projects\\qbuntu\\analysis","source_files":["scripts/grid_search/volatility_breakout_grid.py","src/risk/regime.py"],"computed_asof":"2026-07-28T01:10:02","numpy_version":"2.2.6","pandas_version":"2.3.3","python_version":"3.10.11","source_project":"qbuntu-analysis","git_sha_genkidama":"711b855"},"license":"CC-BY-4.0"}