B

Bar

A chart style that shows the opening, highest, lowest and the close prices for each chart period.

Bar HLC technical study

In Forex, this is the currency bought or sold by the investor. For example, in EURUSD the base currency is Euros, meaning that one unit of Euros is worth a variable amount of USD. When you buy Euros, you pay with US Dollars, and when you sell Euros you receive US Dollars. The currency on the other side of the trade (US Dollars in the example above) is known as the variable currency.

Bar OHLC technical study

A trader who believes that prices will fall. A bearish market is one in which prices are falling, a market becomes a bear market when prices have fallen by 20% or more over a sustained period.

Base currency

In Forex, this is the currency bought or sold by the investor. For example, in EURUSD the base currency is Euros, meaning that one unit of Euros is worth a variable amount of USD. When you buy Euros, you pay with US Dollars, and when you sell Euros you receive US Dollars. The currency on the other side of the trade (US Dollars in the example above) is known as the variable currency.

Bear

A trader who believes that prices will fall. A bearish market is one in which prices are falling, a market becomes a bear market when prices have fallen by 20% or more over a sustained period.

Bid price

Often referred to as the Bid.
The highest price that a buyer is willing to pay for an instrument.
For Forex trading, this is the price at which you can sell the trade/base currency (quoted first) by buying the price currency of the pair. That is, if you sell USDJPY 100'000, you are selling US dollars 100'000 and buying Japanese yen.

Black Scholes model

A formula that examines the price variation of financial instruments over time. It is often used to determine the price levels of European call Options. The formula takes into consideration the factors influencing the price of a call Option, including the price of the underlying asset, the exercise price of the Option, the interest rate, and the time until the Option's expiry.

Breach

When the price of an instrument trades through a specified level. For example, if  the execution price for a limit order to buy is set at 100, and the price falls from 105 to 95, the 100 price level has been breached and the order will become a market order and be filled as soon as possible.

Bull

A trader who believes that prices will rise. A bullish market is one in which prices are rising. A market becomes a bull market when prices have risen by 20% or more from a low point over a sustained period.

Buy offer

A limit order to buy at the current Offer (Ask) Price.