- Alerts (trading alerts)
- Averaging Down
- Automated Trading (Algorithmic Trading)
- Auction Market
- ATH (All Time High)
- Ashdraked
- Asset Classes
- Assets
- Ask
- Arbitrage
- Anaume
- ANOVA Analysis of Variance
- ALTCOIN
- ABC
- All Risks (AR)
- Agent/Agency Agreement
- After Date
- Adverse Excursion
- Advance Payment Guarantee/Bonds
- AD Line – The Advance-Decline Line
- ADDY (address)
- Acquisition
- Acceptor for Honor
- Acceptance (also, acc.)
- Acceptance Credit
- Acceptor