Weather#178tier 2live in productionNew

sunshine mood local hq

cadence: Dailydata: mediumshort onlylong onlylong short
paper
2003
Source
Hirshleifer, D., Shumway, T. (2003). "Good Day Sunshine: Stock Returns and the Weather." Journal of Finance, 58(3), 1009-1032. Also Goetzmann-Kim-Kumar-Wang 2015 RFS.
Read the paper →

What it checks

Cloudy NYC days dim trader mood — NYC-HQ stocks drift down the next session.

Mechanism

NYC-metro cloud cover affects institutional-trader mood; sunny days produce positive next-day drift in NYC-HQ tickers, cloudy days negative drift.

No production champion data for this family yet. Stats appear once the discovery pipeline promotes at least one strategy with this family tag.

Signal rule

ACMC z vs 90d at KNYC/KLGA/KEWR; |z|>=1 → long-bright / short-cloudy; hold 1/3d

Data dependencies

  • daily_prices

    Adjusted-close OHLCV for every US-listed ticker; primary price feed.

  • firm_hq_locations

    Worker data table — see services/worker schema.

  • noaa_ghcnd_daily

    Worker data table — see services/worker schema.

Expected edge

Paper alpha
10-15 bps/day
Paper window
T+0 to T+3d

10-15 bps/day post-institutional-control.

Related families

Explore sunshine mood local hq on alphactor.ai

See which tickers this family is currently firing on, with live signals and rankings.

For informational and educational purposes only. Not financial advice. Learn more