spec. downside-beta-jp-all-fact-median-sharpecite ledger
qbuntu.ai/cite/downside-beta-jp-all-fact-median-sharpeCC-BY-4.0
Median Sharpe across 160 grid runs is 0.39.
sharpe_ratio0.39 sharpe_ratiosupports verdict:marginal
Context
Full grid of 160 parameter combinations.
Source strategy
marginalequity· no_edge
Downside Beta (JP All Stocks)
downside-beta-jp-all
Cite this
qbuntu (2026). Median Sharpe across 160 grid runs is 0.39.. Strategy: Downside Beta (JP All Stocks). https://qbuntu.ai/cite/downside-beta-jp-all-fact-median-sharpe
data source: kabu STATION REST API + J-Quants daily bars
computed asof: 2026-07-31T01:31:48
fact_id: downside-beta-jp-all-fact-median-sharpe (immutable)