Company Events & EarningsExtended setexperimental liveNew

Share Issuance Anomaly

Updated quarterlyData needs: lowlong onlyshort only

2008

Pontiff, J., Woodgate, A. (2008). "Share Issuance and Cross-Sectional Returns." Journal of Finance 63(2), 921-945. Daniel, K., Titman, S. (2006). JF.

Read the paper →

In plain terms

Companies that have dramatically increased their share count over 5 years tend to underperform (they issued shares when overvalued). Companies that have shrunk their share count via buybacks tend to outperform. Trade the top/bottom deciles of 5y share-count growth.

How it works

Firms with high trailing-5-year share-issuance growth significantly underperform low-issuance (buyback-heavy) firms. Combines (i) management timing equity issuance when overvalued and (ii) the external-financing anomaly (Bradshaw-Richardson-Sloan 2006).

Live results

0 times picked on its own · 3 times inside a blend (0 beat the stock) · updated 2026-06-06

This strategy is a frequent ingredient in blends that combine a few strategies on one stock. It has contributed to 3 such blended picks (0 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.
Key metrics
A data feed this strategy reads, refreshed on its normal schedule.

Expected edge

Reported return: +/-5-8% over 12mo
Tested over: T+1 to T+252d

Pontiff-Woodgate 2008; ~5-8% gross over 12mo on top/bottom decile spread.

Related families

Asset Growth AnomalyPrice & Market Behavior

Companies that grow their balance sheet aggressively (lots of new assets, M&A, capex spikes) tend to under-deliver the next 1-3 years — the market trusted the empire-building story too much. Bet on the boring low-growth names instead.

Buyback DriftPrice & Market Behavior

Companies that announce (or quietly start) share buybacks beat the market by 3-4% over the next year, strongest in beaten-down value names.

Shareholder YieldPrice & Market Behavior

Stocks with high combined dividend+buyback yield outperform — beats either signal alone.

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