A basis point (bp or bps) is one-hundredth of one percentage point (0.01%). A move from 4.00% to 4.25% is a 25-basis-point move. It's the standard unit for quoting interest rates, credit spreads, and fees precisely enough to avoid ambiguity.
Why It Matters
Basis points matter because percentage-point language is too coarse for markets where fractions of a percent move billions of dollars — a fund quoting fees as '0.75%' versus '75 basis points' is saying the same thing, but bps avoids the confusion of whether a change from 1% to 2% is 'a 1% increase' or 'a 100% increase.'
How It Works in Practice
- 11 basis point = 0.01% = 0.0001 in decimal form
- 2100 basis points = 1 percentage point
- 3Central bank rate decisions are announced in basis points (a '25 bps hike')
- 4Management and performance fees, credit spreads, and bond yields are all commonly quoted in bps for precision
Common Pitfalls
Confusing a basis-point change with a percentage change of the underlying number itself (a rate moving from 2% to 3% is a 100 bps move, but a 50% relative increase) leads to real miscommunication in reporting and analysis
Small bps differences compound meaningfully at scale — a 5 bps fee difference on a $500M mandate is $250,000 a year, easy to dismiss verbally and expensive to ignore in a contract