Account
A record of transactions of goods and services owed to one person by another.

Account Balance
The Account Balance is the amount of money that the client has in his account at a specific time that does not include open positions, PNL and unrealized transactions. This term is used interchangeably with the term “Balance”.

All or None
Refers to a request for a broker to fill an order completely at a predetermined price or not at all. Refers to both buy and sell orders.

Arbitrage
Arbitrage is creating a risk-less profit by means of utilizing rate differences between markets. It consists of simultaneous buying and selling security at two different prices in two markets with an equal and opposite position in order to profit from small price differentials.

Appreciation
An increase in the value of a currency in response to market demand.

Ask Rate
The lowest price that shares will be offered for sale, such as the bid/ask spread in the foreign exchange market.

Ask Size
The Ask Rate is the quantity of units of a secondary currency that a market-maker is asking for, to pay for a unit of the base currency. This is the buying price of the base currency.

Asset Allocation
This is the diversification of one’s assets into different sectors, such as, stocks, bonds, and forex, to optimize growth potential and minimize risk.

AUS 200
A name for the Australian Securities Exchange (ASX 200) which is an index of the top 200 companies (by market capitalization) listed on the Australian stock exchange.

At Best
An instruction given to a dealer to buy or sell at the best rate that can be obtained.

At or Better
An order to deal for a specific price or better.

Aussie
Also, “Oz” or “Ozzie”; refers to the AUD/USD pair.