Бид Аск Форекс

Published in: IEEE Conference on Computational Intelligence for Financial Engineering & Economics (CIFEr)

Os pares são cotados em dois preços: o preço Bid para vender e o preço Ask para comprar a divisa base.

A cotação indicada para o par EURUSD significa que podemos:

• Vender 1 EUR por 1, USD (pelo preço Bid)
• Comprar 1 EUR por 1, USD (pelo preço Ask)

Uma operação completa inclui ambos os preços: o Bid e o Ask, já que a abertura e o fechamento da posição são realizados com transações opostas:

• A abertura de uma posição "comprar" significa uma compra, enquanto o fechamento de uma posição "comprar" significa uma venda,
• A abertura de uma posição "vender" significa uma venda, enquanto o fechamento de uma posição "vender" significa uma compra.

O spread é a diferença entre os preços de venda e de compra. Os spreads para os varios pares de moedas são significativamente diferentes entre si. O valor do spread é indicado em pips. No nosso exemplo, o spread do par de moedas EUR/USD é de 2 pips.

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Começar a aprender

Like any financial market the Forex market has a bid ask spread. This is simply the difference between the price at which a currency pair can be bought and sold. This is what accounts for the negative number in the &#;profit&#; column as soon as you place a trade.

Before we go any further let&#;s define the two terms, &#;bid price&#; and &#;ask price&#;.

Bid Price &#; Used when selling a currency pair. It reflects how much of the quoted currency will be obtained if buying one unit of the base currency.

Ask Price -Used when buying a currency pair. It reflects the amount of quoted currency that has to be paid in order to buy one unit of the base currency.

Note: The bid price will always be smaller than the ask price.

Remember from the lesson on Forex currency pairs that the base currency is the one in front while the quote currency is the second. So using the example of EURUSD, the Euro is the base currency and the US Dollar is the quote currency.

It sounds tricky but it&#;s actually quite simple. It&#;s essentially how much of one currency you can get for the other and vice versa. The most important thing to remember is that the bid price is used for selling while the ask price is used when buying.

At the end of the day all of these intricacies are taken care of for you by your broker. All you need to know is whether you want to go short (sell) or go long (buy)and your broker does the rest.

Which Currency Pairs Have the Lowest Spreads?

It&#;s important to have an understanding of which currency pairs have the best (lowest) spreads when trading. While the major currency pairs and even some crosses have decent spreads, some of the more exotic currency pairs can have wide spreads, creating a large deficit as soon as you enter a trade.

The currency pairs with the lowest spreads are those with the largest daily volume. Essentially we&#;re talking about the major currency pairs, which are:

EURUSD,  USDJPY,  GBPUSD,  USDCHF,  AUDUSD,  USDCAD,  NZDUSD

These currency pairs typically have the lowest spreads, with EURUSD, GBPUSD and USDJPY being the lowest of them all.

One advantage to trading the higher time frames, which is what I teach on this site, is that the bid ask spread isn&#;t quite as important as if you were trading the lower time frames. This is because on the larger time frames we&#;re interested in the larger moves and also making fewer trades. Compare this to the day trader who can make dozens of trades in a single day and may only be in a trade for a matter of minutes.

Make no mistake though, the spread on some of the less-liquid currency pairs can be significant and should certainly be considered before taking a trade, even when trading the higher time frames.

The Bid Ask Spread During Different Trading Session

We all know that the Forex market is a global market consisting of different trading sessions. These sessions are:

• Sydney
• Tokyo
• London
• New York

The bid ask spread for a currency pair can vary depending on the current trading session. For the most part the bid ask spread will be the lowest during the London and New York sessions as these carry the largest trading volume.

However there is a three hour window that occurs immediately after the New York session closes and before Tokyo opens in which the spreads can considerable. This is especially true for some of the currency crosses and exotic currency pairs but can also effect the major currency pairs.

Although the Sydney session opens as soon as New York closes, it isn&#;t nearly as liquid as the New York session and therefore produces much larger spreads. It isn&#;t until Tokyo comes online three hours later that volume picks up and most spreads return to normal.

It&#;s important to keep this in mind if  you plan on trading during this three hour window. In fact as a general rule you should always check the bid ask spread before entering a trade regardless of the current trading session.

Summary

Before we close out this lesson, here are a few key points to keep in mind when it comes to the bid ask spread.

• The bid price is used when selling a currency pair
• The ask price is used when buying a currency pair
• The major currency pairs generally have the lowest spreads
• The bid ask spread for most pairs is considerably larger during the three hours immediately after the New York session
• Always check the bid ask spread before placing a trade

I hope this lesson has helped you to better understand the Forex bid ask spread as well as when to take extra care and watch for larger-than-usual spreads.

Now that we have a better understanding of the two prices that make up the Forex bid ask spread, let&#;s take a look at how the spread is represented in the next lesson.

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