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Simulated conditions may differ from real conditions, and traders should not necessarily expect the same results from live trading.
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Fan Yang is a registered CTA and is currently working to complete his CMT-designation. As one of two instructors in the firm’s educational webinars, Fan encourages students to use demo accounts when practicing the tools and principles taught in the course. Recognizing that there is an apparent discrepancy between demo and live trading results, he addresses what he believes are the main factors behind these differences in hopes of helping traders correctly utilize their demo accounts and prepare for live trading.
Demo accounts offer an invaluable opportunity to sharpen trading skills. However, there is a resounding agreement that demo and live trading are completely different animals. Many complain that their successful performances in demo do not carry over to live trading, and that demo trading does not prepare you for live trading. This warrants careful consideration of the factors causing the discrepancy between demo and live trading. Understanding these factors may help with two things: 1) How to fully utilize the demo account 2) How to make a transition to a live account. Let’s examine these factors and how we can deal with them.
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1. Execution
FACT: Demo accounts automate all execution while live accounts automate up to 10 lots for certain currency pairs at CMS Forex. A disclaimer for demo accounts states “Simulated conditions may differ from real conditions, and traders should not necessarily expect the same results from live trading.” Let’s say the market is very volatile after a certain Non-Farm Payroll release. You request a price in a trade order. A demo account would execute the price requested. However in live trading, the broker then tries to execute this price with the bank that feeds it streaming quotes. By this time, which can be within a second, the price is no longer available. In this situation, slippage occurs when the broker executes your order at a price that is NOT within a pre-specified and acceptable “trader’s range”. However, there is no slippage1 on market orders at CMS Forex because orders for unavailable prices are re-quoted with the next available price. Nonetheless, with any broker, your entry points in the market under live trading conditions may at times be significantly different from those made under the demo environment.
Issue and Resolution: The issue is that LIVE trading will always incur higher transaction costs than reflected by demo trading results. Accepting this fact, the trader should then incorporate higher costs during the evaluation of his or her demo performance in preparation for live trading. For example, round down simulated winnings to the nearest 10 pips, while rounding up losers. Let’s take a hypothetical case, where a trader’s strategy has yielded these results: +67 pips, +48 pips, -38, +82, +45, - 38, resulting in a net of +166 pips. The trader could then round these appropriately to: +60 pips, +40 pips, -40, +80, +40, -40 = resulting in a net of +140 pips, a difference of 26 pips in the 6 recorded trades Let’s take a look at another example. Let’s say Bob has results +15, -72, +28, - 56, - 62, +5 = -142 pips. With the same adjustment approach, his live performance would be estimated with, +10, -80, +20, -60, -70, 0 = -180. A dramatic difference to the downside of 38 pips. Essentially whether the net result is positive, negative or flat the results should be adjusted to reflect the higher cost of gains and losses. Should this trader’s system place trades frequently at fast market situations, he or she may want to shave even more from demo results, ie. an additional -5 pips for each trade after the rounding. On the other hand, if the system places trades in relatively calmer markets, this rounding method may already be appropriately conservative. There are many other techniques you can use, but just remember that the higher number trades you make, the more cost adjustment you will have to make. Also note that the example only used 6 results for the sake of simplicity. 20 is the minimum statistically valid sample size, and you may want to use more.
2. Simulated Conditions
FACT: First of all, the whole purpose of a demo account is to 1) get familiar with the trading platform and 2) practice strategies and building trading plans. The first purpose is usually fulfilled without issues, but some traders fail to control their demo environment to replicate their live environment.
Issues and Resolutions:
During Live (emotions, psychology):Having prepared for the difference in execution between live and demo, you will now have to face the enemies from within.
1Under normal market conditions CMS Forex honors the price on stop and limit orders up to 10 lots for specific currency pairs.
Disclaimer: Trading OTC Forex on margin carries a high level of risk, and may not be suitable for all investors. The high degree of leverage can work against you as well as for you. Before deciding to invest in foreign exchange or futures you should carefully consider your investment objectives, level of experience, and risk appetite. The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose. You should be aware of all the risks associated with foreign exchange and futures trading, and seek advice from an independent financial advisor if you have any doubts. |
