Put two rookie traders in front of the screen, provide them with your best high-probability set-up, and for good measure, have each one take the opposite side of the trade. More than likely, both will wind up losing money. However, if you take two pros and have them trade in the opposite direction of each other, quite frequently both traders will wind up making money - despite the seeming contradiction of the premise. What's the difference? What is the most important factor separating the seasoned traders from the amateurs? The answer is money management.
Like dieting and working out, money management is something that most traders pay lip service to, but few practice in real life. The reason is simple: just like eating healthy and staying fit, money management can seem like a burdensome, unpleasant activity. It forces traders to constantly monitor their positions and to take necessary losses, and few people like to do that. However, as Figure 1 proves, loss-taking is crucial to long-term trading success.
Money Management Styles
Generally speaking, there are two ways to practice successful money management. A trader can take many frequent small stops and try to harvest profits from the few large winning trades, or a trader can choose to go for many small squirrel-like gains and take infrequent but large stops in the hope the many small profits will outweigh the few large losses. The first method generates many minor instances of psychological pain, but it produces a few major moments of ecstasy. On the other hand, the second strategy offers many minor instances of joy, but at the expense of experiencing a few very nasty psychological hits. With this wide-stop approach, it is not unusual to lose a week or even a month's worth of profits in one or two trades. (For further reading, see Introduction To Types Of Trading: Swing Trades.)
To a large extent, the method you choose depends on your personality; it is part of the process of discovery for each trader. One of the great benefits of the FX market is that it can accommodate both styles equally, without any additional cost to the retail trader. Since FX is a spread-based market, the cost of each transaction is the same, regardless of the size of any given trader's position.
For example, in EUR/USD, most traders would encounter a 3 pip spread equal to the cost of 3/100th of 1% of the underlying position. This cost will be uniform, in percentage terms, whether the trader wants to deal in 100-unit lots or one million-unit lots of the currency. For example, if the trader wanted to use 10,000-unit lots, the spread would amount to $3, but for the same trade using only 100-unit lots, the spread would be a mere $0.03. Contrast that with the stock market where, for example, a commission on 100 shares or 1,000 shares of a $20 stock may be fixed at $40, making the effective cost of transaction 2% in the case of 100 shares, but only 0.2% in the case of 1,000 shares. This type of variability makes it very hard for smaller traders in the equity market to scale into positions, as commissions heavily skew costs against them. However, FX traders have the benefit of uniform pricing and can practice any style of money management they choose without concern about variable transaction costs.
Four Types of Stops
Once you are ready to trade with a serious approach to money management and the proper amount of capital is allocated to your account, there are four types of stops you may consider.
1. Equity StopThis is the simplest of all stops. The trader risks only a predetermined amount of his or her account on a single trade. A common metric is to risk 2% of the account on any given trade. On a hypothetical $10,000 trading account, a trader could risk $200, or about 200 points, on one mini lot (10,000 units) of EUR/USD, or only 20 points on a standard 100,000-unit lot. Aggressive traders may consider using 5% equity stops, but note that this amount is generally considered to be the upper limit of prudent money management because 10 consecutive wrong trades would draw down the account by 50%.
One strong criticism of the equity stop is that it places an arbitrary exit point on a trader's position. The trade is liquidated not as a result of a logical response to the price action of the marketplace, but rather to satisfy the trader's internal risk controls.
2. Chart StopTechnical analysis can generate thousands of possible stops, driven by the price action of the charts or by various technical indicator signals. Technically oriented traders like to combine these exit points with standard equity stop rules to formulate charts stops. A classic example of a chart stop is the swing high/low point. In Figure 2 a trader with our hypothetical $10,000 account using the chart stop could sell one mini lot risking 150 points, or about 1.5% of the account.
