- Basis point
- Basis price
- Basis risk
- Basket
- Basket options
- Basket trades
- BD form
- BDS Statistic
- Boston Exchange Automated Communication Order-Routing Network (BEACON)
- Bear
- Bear CD
- Bear hug
- Bear market
- Bear raid
- Bear spread
- Bear trap
- Bearer bond
- Bearer form
- Bearer share
- Bearish
- Beating the gun
- Before-tax contributions
- Before-tax profit margin
- Beggar-thy-neighbor
- Beggar-thy-neighbor devaluation
- Behavioral finance
- Behind
- Bell
- Bellwether issues
- Below par
- Benchmark
- Benchmark error
- Benchmark interest rate
- Benchmark issue
- Beneath
- Beneficial Owner
- Beneficial ownership
- Beneficiary
- Bequest
- Best's rating