Shareholders' Equity
Shareholders' equity is residual interest in assets after deducting liabilities — book capital, not the market cap.
Definition
Shareholders' Equity refers to book capital, not the market cap. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
Equity risk premia compress or expand with earnings paths and factor regimes. When book capital, not the market cap shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what shareholders' equity is saying. If book capital, not the market cap moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
Separate index beta from residual; know the sector and factor loadings of the claim. Prefer a short written null hypothesis for Shareholders' Equity: what would falsify the current reading in the next window?