ARS: Argentinean Nuevo Peso
ARS: Argentinian Nuevo Peso
ASA: American Society of Appraisers
ASAS: Amsterdam Security Account System

ASCOT: Asset Swapped Convertible Option Transaction
ASE: American Stock Exchange
ASE: Amsterdam Stock Exchange
ASE: Association of Swiss Exchanges
ASEAN: Association of Southwest Asian Nations
ASIC: Australian Securities and Investments Commission

ASTM: American Society for Testing Materials
ASX: Australian Securities Exchange

ASX: Australian Stock Exchange
ASXD: Australian Stock Exchange Derivatives
ATA: Agrarische Termijnmarkt Amsterdam
ATB: Across the Board
ATB: Association Tripartite Bourses
ATES: Automated Trade Execution System

ATHEX: Athens Stock Exchange
ATM: Amsterdam Treasury Bond Market
ATM: at-the-money

ATM: Automated Teller Machine
ATM: Automatic Teller Machine
ATO: Asset Turnover

ATOI: After Tax Operating Income

ATR: Average True Range
ATS: Alternative Trading Systems
ATS: Austrian Schilling

ATS: Austrian Schillings
ATS: automated trade system
ATS: Automated Trading System
ATU: Annual Tax Unit

ATX: Austrian Traded Index
AU: Accounting Unit

AUD: Australian Dollar

AUM: Assets Under Management

AWG: Aruba Guilder
AWG: Aruban guilder
AWOL: absent without leave
AXJ: Asia Ex-Japan