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connected-stocks cohort propagation

Updated dailyData needs: highlong onlyshort onlylong short
paper
2014
Source
Anton & Polk 2014, Connected Stocks
Citation only, paper link pending.

In plain terms

Stocks held by the same group of funds tend to move together, so when a stock's peer group rallies but it lags behind, the strategy buys it expecting it to catch up.

How it works

Stocks that share many institutional owners co-move for non-fundamental reasons (correlated flow through shared fund baskets), and that co-movement is predictable. Built from the monthly N-PORT co-ownership graph, the family forms an overlap-weighted institutional cohort and trades the focal name catching up to (and later reverting from) its cohort's recent return.

Live results

51 times picked on its own · updated 2026-07-06
How its picks scored vs. buy & hold
Each pick is graded on a recent year it was never tuned on, against simply owning the same stock
Where its edge concentrates
Share of picks in each company-size group that beat buy & hold
How often it trades
Active vs. patient. Bars on the left mean it waits for rare setups; bars on the right mean it trades often
Return vs. buy & hold
How much each pick beat or trailed simply owning the stock over the test year (extreme microcap moves trimmed)
Loading substrate evidence…

Data dependencies

  • Nport fund holdings

    A data feed this strategy reads, refreshed on its normal schedule.

  • Daily prices

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

Expected edge

A connected-peer long-short earns about 9 percent per year (Sharpe ~1.0, half-life ~6 months) as focal names propagate up to and later revert from their institutional cohort's non-fundamental flow.

Related families

Explore connected-stocks cohort propagation 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