Basis Point (bps)
Quick Definition
A unit of measurement equal to one-hundredth of one percentage point (0.01%), commonly used to describe changes in interest rates, bond yields, and fees.
Key Takeaways
- 1 basis point = 0.01% = 1/100th of a percentage point
- 100 basis points = 1 percentage point
- Basis points eliminate ambiguity between absolute and relative percentage changes
- The Fed typically moves rates in 25 bps increments; 50+ bps is considered aggressive
- ETF expense ratios are often quoted in basis points — lower is better for investors
What Is Basis Point (bps)?
A basis point (often abbreviated as "bps" or "bp," pronounced "bips") is a unit of measurement equal to 0.01% or 0.0001 in decimal form. One hundred basis points equal 1%. Basis points are used throughout finance to avoid ambiguity when discussing small percentage changes.
Why "Basis Points" Instead of Percentages? Consider the statement "interest rates rose by 0.5%." Does that mean:
- From 2% to 2.5% (an absolute increase of 0.5 percentage points)? OR
- From 2% to 2% × 1.005 = 2.01% (a 0.5% relative increase)?
Saying "rates rose by 50 basis points (from 2.00% to 2.50%)" eliminates all ambiguity. This precision matters enormously in bond markets, lending, and derivatives where tiny changes translate to millions of dollars.
Quick Reference:
| Basis Points | Percentage |
|---|---|
| 1 bps | 0.01% |
| 10 bps | 0.10% |
| 25 bps | 0.25% |
| 50 bps | 0.50% |
| 100 bps | 1.00% |
| 500 bps | 5.00% |
Where You'll Encounter Basis Points:
- Federal Reserve rate decisions: "The Fed raised rates by 25 bps" (quarter-point hike)
- Bond spreads: "Investment-grade bonds yield 150 bps over Treasuries"
- Expense ratios: "This ETF charges 3 bps annually" (Vanguard's cheapest index funds)
- Loan pricing: "Your mortgage rate is the prime rate plus 200 bps"
- Hedge fund fees: "2 and 20" means 200 bps management fee + 20% of profits
Real-World Impact of Basis Points: On a $1,000,000 mortgage, 25 bps (0.25%) in additional interest = $2,500/year. On a $100B bond portfolio, 1 bp in yield = $10M. When the Fed moves rates by 25 bps, it affects trillions of dollars in loans, mortgages, and bonds.
Formula
Formula
1 basis point = 0.01% = 0.0001Basis Point (bps) Example
- 1The Federal Reserve raised the federal funds rate by 75 basis points — from 1.50% to 2.25% — at its July 2022 meeting, the largest single hike since 1994
- 2A Vanguard Total Stock Market ETF (VTI) charges an expense ratio of just 3 basis points (0.03%) annually, meaning $30 per year on a $100,000 investment
Related Terms
Interest Rate
The cost of borrowing money or the return earned on savings/lending, expressed as a percentage of the principal over a specific time period.
Yield
The income return on an investment, expressed as a percentage of the investment's price or cost, typically from dividends or interest payments.
Expense Ratio
The annual fee charged by a fund as a percentage of assets under management, covering operating costs like management, administration, and marketing.
Federal Reserve (The Fed)
The central banking system of the United States, responsible for monetary policy, bank regulation, and financial stability.
Dividend
A distribution of a company's profits to shareholders, typically paid quarterly in cash or additional shares.
Passive Income
Earnings generated with minimal ongoing effort, typically from investments like dividends, rental properties, interest, or royalties.
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