{"fact_id":"pead-jp-all-fact-best-sharpe","strategy_slug":"pead-jp-all","claim":"Best grid Sharpe ratio is 2.24 (p=0.065).","value":2.24,"value_text":null,"unit":"sharpe_ratio","context":"period 2023-12-13–2026-05-25; cost=5bps; side=BOTH","supports_verdict":"marginal","source_run_id":"r-pead-jp-all-0384","search_tsv":"'-05':14 '-12':11 '-13':12 '-25':15 '0.065':8 '2.24':6 '2023':10 '2026':13 '5bps':17 'best':1 'cost':16 'grid':2 'p':7 'period':9 'ratio':4 'sharp':3 'side':18","cite_url":"https://qbuntu.ai/cite/pead-jp-all-fact-best-sharpe","strategy":{"slug":"pead-jp-all","name":"Post-Earnings Announcement Drift (JP All Stocks)","verdict":"marginal","url":"https://qbuntu.ai/strategies/pead-jp-all"},"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/pead_grid.py","src/risk/regime.py"],"computed_asof":"2026-07-27T03:36:14","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"}