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Clinicaltrials Phaseiii Readout

Updated dailyData needs: mediumshort only
paper
2021
Source
Brogaard, J., Gerard, B., Walsh, M. (2021). "Phase III Trial Readouts and Stock Prices." Journal of Financial Economics.
Read the paper →

In plain terms

When a drug company publicly posts the results of a late-stage (Phase III) trial, bet that its stock drifts down over the following weeks, and hold for about 2 to 8 weeks. The trade waits until the results are actually public before taking any position.

How it works

Phase III results posting is a resolved-uncertainty event. The equity-side edge is a short-side post-readout drift: on average, terminated/failed trials get their failure risk progressively priced in and the post-posting drift in sponsor equity is negative, while the option-side 'long volatility / IV-crush' framing does not pass through to a directional equity long. Entering only after the public posting date keeps the signal free of completion_date look-ahead leakage.

No live results for this strategy yet. Charts appear once it has earned a top spot on at least one stock, either on its own or as part of a blend of several strategies.
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Data dependencies

  • Daily prices

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

  • Clinical trials phaseiii

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

Expected edge

Reported return
long-vol
Tested over
T-5 to T+5

Brogaard et al 2021: long-vol premium pre-readout.

Example tickers where this is likely to fire

Illustrative only, the signal fires based on the live data, not a fixed list.

Related families

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