Company Events & EarningsExtended setexperimental liveNew

Transcript Numerical Specificity

Updated event-triggeredData needs: mediumlong onlyshort onlylong short
paper
2025
Source
Campbell, Zheng & Zhou (2025), Journal of Corporate Finance.
Read the paper →

In plain terms

When management gives unusually concrete numbers on an earnings call, uncertainty can fall. When the call gets vague, that can be a warning sign.

How it works

More quantitative earnings-call disclosure can reduce information risk. The family counts numeric tokens per 1,000 transcript words and compares each call to the firm's prior call history.

Live results

0 times picked on its own · 2 times inside a blend (2 beat the stock) · updated 2026-07-06
This strategy is a frequent ingredient in blends that combine a few strategies on one stock. It has contributed to 2 such blended picks (2 of which beat simply holding the stock). Picking it on its own is only one of the ways it shows up.
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)
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Data dependencies

  • Daily prices

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

  • Earnings call transcripts

    Full earnings-call transcripts (prepared + Q&A), tokenised.

Expected edge

Reported return
23bps 3-day CAR per 1sd numeric specificity in the paper setting
Tested over
Earnings-call event windows

Information-risk reduction around number-dense calls.

Example tickers where this is likely to fire

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

Related families

Explore Transcript Numerical Specificity 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