The martingale was originally a type of betting style that was based on the premise of “doubling down”. Interestingly enough, a lot of the work done on the martingale was by an American mathematician named Joseph Leo Doob, who sought to disprove the possibility of a 100% profitable betting strategy.
The mechanics of the system naturally involve an initial bet; however, each time the bet becomes a loser, the wager is doubled such that, given enough time, one winning trade will make up all of the previous losses. The introduction of the 0 and 00 on the roulette wheel was used to break the mechanics of the martingale by giving the game more than two possible outcomes other than the odd vs. even or red vs. black. This made the long-run profit expectancy of using the martingale in roulette negative and thus destroyed any incentive for using it.
To understand the basics behind the martingale strategy, let’s take a look at a simple example. Suppose that we had a coin and engaged in a betting game of either head or tails with a starting wager of $1. There is an equal probability that the coin will land on a head or tails and each flip is independent, meaning that the previous flip does not impact the outcome of the next flip. As long as you stick with the same directional view each time, you would eventually, given an infinite amount of money, see the coin land on heads and regain all of your losses plus $1. The strategy is based on the premise that only one trade is needed to turn your account around.
Why Martingale Works Better With FX
One of the reasons why the martingale strategy is so popular in the currency market is because unlike stocks, currencies rarely go to zero. Although companies easily can go bankrupt, countries cannot. There will be times when a currency is devalued, but even in cases where there is a sharp slide, the currency’s value never reaches zero. It’s not impossible, but what it would take for this to happen is too scary to even consider.
The FX market also offers one unique advantage that makes it more attractive for traders who have the capital to follow the martingale strategy. The ability to earn interest allows traders to offset a portion of their losses with interest income. This means that an astute martingale trader may want to only trade the strategy on currency pairs in the direction of positive carry. This means that he or she would buy a currency with a high interest rate and earn that interest while, at the same time, selling a currency with a low interest rate.With a large amount of lots, interest income can be very substantial and could work to reduce your average entry price.
Minding the Risk
As attractive as the martingale strategy may sound to some traders, we stress that grave caution is needed for those who attempt to practice this style of trading. The main problem with this strategy is that oftentimes, that sure-fire trade may blow up your account before you can turn a profit – or even recoup your losses. In the end, traders must question whether they are willing to lose most of their account equity on a single trade. Given that they must do this to average much smaller profits, many feel that the martingale trading strategy is entirely too risky for their
The above article is written in part by one of my favorite authors, Kathy Lien who writes for Investopedia.
Anthony DiChi at TradeCurrencyNow,
America’s Forex News and currency information source.