- Abandoned Baby
- Account Statement Report
- Account Value
- Accumulation Area
- Accumulative Swing Index (ASI)
- Address
- ADDY
- ADP National Employment Report
- AdvanceDecline Index
- Afghanistan Afghanis
- Agency Model
- Aggressor
- Alan Bollard
- Alan Greenspan
- Albanian Leke
- Algerian Algeria Dinars
- Alligator
- Altcoin
- Analyst
- Andrews 'Pitchfork
- Angela Merkel
- Angola Kwanza
- Anti-Money Laundering
- ANZ Commodity Price Index
- Application Programming Interface (API)
- Appreciation
- Arbitrage
- Argentina Pesos
- Armenia Drams
- Aroon Oscillator
- Aroon UpDown
- Aruban Guilder
- Ascending Channel
- Ascending Trend Line
- Ascending Triangle
- ASIC Mining
- Ask
- Asset
- Asset Purchase Programme (APP)
- Asset Purchases
- Asymmetric Encryption
- Asymmetric Slippage
- At Best
- At Or Better
- ATH
- Austerity
- Australian Dollar
- Autorité des marchés financiers
- Average Directional Index (ADX)
- Average True Range (ATR)