Margin requirements for futures and futures options are established by each exchange through a calculation algorithm known as SPAN margining. SPAN (Standard Portfolio Analysis of Risk) evaluates overall portfolio risk by calculating the worst possible loss that a portfolio of derivative and physical instruments might reasonably incur over a specified time period (typically one trading day.) This is done by computing the gains and losses that the portfolio would incur under different market conditions. The most important part of the SPAN methodology is the SPAN risk array, a set of numeric values that indicate how a particular contract will gain or lose value under various conditions. Each condition is called a risk scenario. The numeric value for each risk scenario represents the gain or loss that that particular contract will experience for a particular combination of price (or underlying price) change, volatility change, and decrease in time to expiration.
Profit factor on the forex robot trading account statement. Profit factor is the gross profit / gross loss. E.g Profit of \$6000 and a loss of \$3000 would give a profit factor of 2.0. This means that for every \$1 risked, you can expect a return of \$2. If a forex robot has a profit factor less than 1, eg profit factor of 0.7, this means that for every \$1 you can expect \$0.70 back (the forex robot is a losing one!). If a forex robot has a high profit factor, it is a good one – eg profit factor of 6.0 (\$6 gained for every \$1 risked). You can click this table heading to rank the table of forex robots by the profit factor to see what are the best forex robots with the highest profit factor.

Profit factor on the forex robot trading account statement. Profit factor is the gross profit / gross loss. E.g Profit of \$6000 and a loss of \$3000 would give a profit factor of 2.0. This means that for every \$1 risked, you can expect a return of \$2. If a forex robot has a profit factor less than 1, eg profit factor of 0.7, this means that for every \$1 you can expect \$0.70 back (the forex robot is a losing one!). If a forex robot has a high profit factor, it is a good one – eg profit factor of 6.0 (\$6 gained for every \$1 risked). You can click this table heading to rank the table of forex robots by the profit factor to see what are the best forex robots with the highest profit factor.
Margins are a hotly debated topic. Some traders argue that too much margin is very dangerous, however it all depends on trading style and the amount of trading experience one has. If you are going to trade on a margin account, it is important that you know what your broker's policies are on margin accounts, and that you fully understand and are comfortable with the risks involved. Be careful to avoid a Forex margin call.
These articles, on the other hand, discuss currency trading as buying and selling currency on the foreign exchange (or "Forex") market with the intent to make money, often called "speculative forex trading". XE does not offer speculative forex trading, nor do we recommend any firms that offer this service. These articles are provided for general information only.

## Should you have a position that is subject to an additional margin requirement we will contact you to make arrangements to cover it. This increased margin requirement will continue to apply at FOREX.com’s discretion, until the position size decreases and remains materially below the threshold for a sustained period. Partially closing the position will not automatically reduce your margin requirement.

What's more, even online robot merchants try to move their robots in rank by claiming that their opponents' ones are scams. A lot are advertised with false claims by people who have made serious money applying these systems. The truth however, is that a great number of investors and traders have lost a lot of money using so called 'free' Forex robots that work. There have even been circumstances in which whole accounts have been wiped out.
If you really want to know how effective robots are, you should check out reviews and authoritative testimonials online. Although they can scan millions of different charts within seconds, most often 90% will turn out incorrect information. This is understandable - because FX robots are just robots. Even though they are capable of performing highly sophisticated tasks, and many at once, every Forex robot or Forex robot free is still deprived of creative thinking. They cannot imagine what may take place in the near future, as their functionality is restricted to how they were initially programmed, as well as past performance.
Leveraged trading in foreign currency or off-exchange products on margin carries significant risk and may not be suitable for all investors. We advise you to carefully consider whether trading is appropriate for you based on your personal circumstances. Forex trading involves risk. Losses can exceed deposits. We recommend that you seek independent advice and ensure you fully understand the risks involved before trading.