Dilution
Your slice shrinking because the company issued more shares.
New shares, whether issued to raise money or to pay staff, mean the same profit is now split more ways. Your ownership percentage, and your claim on future earnings, fall.
Share-based compensation is the most common source, and the most quietly corrosive, because it does not appear as a cash cost and companies frequently ask you to ignore it in 'adjusted' earnings.
What you actually own
A share is a slice of the whole company: its profits, its assets and its votes. Your slice is small, and it is a real claim, not a bet on a ticker.
Persistent dilution can consume most of a company's growth before it ever reaches you.
Watching total profit grow while your share count grows faster. You are getting a bigger slice of nothing.
Related terms
See Dilution on a real company
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