Goodwill
The premium paid above net asset value when buying another company — the unseen value of brand, customers, and so on.
In plain terms
When Company A buys Company B whose book net assets are $10B but pays $12B, the extra $2B paid is goodwill.
It is a "premium" for value worth paying for but not on the books — brand, customer relationships, technology. So goodwill arises through acquisitions.
What it tells you
It shows how much of a premium the company paid in acquiring others in the past.
When goodwill makes up a large share of assets, it also means the company has grown more through acquisitions than by building organically.
Formula
goodwill = acquisition price − net asset value of the acquired company (an intangible-asset line on the balance sheet)
What high or low means
Goodwill itself is neither good nor bad — it is "the amount paid on top in an acquisition."
But if it is too large, an overpriced acquisition may be lowering capital efficiency (ROIC) or carrying the risk of a later write-down.
If an acquired business does worse than expected, the premium paid (goodwill) has to be written down sharply in the accounts (this is called a "goodwill impairment"). A large loss can then hit all at once and shake earnings.
When goodwill is a large part of assets, that much growth rests on acquisitions, so it is worth examining alongside ROIC and debt.
In 2000, AOL and Time Warner merged in what was then the largest deal ever. Huge goodwill was layered on, in the expectation that AOL would be the winner of the internet age.
But the hoped-for synergies were an illusion, and in 2002 Time Warner recorded a goodwill impairment (asset write-down) of about $99 billion — among the largest ever. It is a textbook case of how the goodwill risk works: a steep premium coming back as an enormous loss alongside a faltering business.
Metrics to read alongside
See it in real stocks
Search US stocks on Stocklore to see Goodwill and other financial metrics alongside the sector average.
This explanation is for information and reference only and is not a recommendation to buy or sell any security. Investment decisions and their consequences are your own.