Bob, I have seen this statement from many sources, including some powerful influences in the trading community. I have come to respectfully disagree. Most of us know better than to look for a grail, but our more realistic search is to find something with a positive expectancy. Just my opinion, but the best money management in the world will not save a method with negative expectancy. You will just lose more slowly and in an orderly fashion. Let’s say you back a negative expectancy and decide to risk no more than 2%. Incurring losses, you will reduce your risk proportionately. This is money management you will often see recommended, but how can it possibly be profitable? Again, just my opinion, but we need a positive expectancy either in risk reward ratio, winners to losers, or both. To me, that is the slight edge, coupled with good mm that will make us long-term profitable. Frankly, my own money management is a broad-brush approach summarized as, “just don’t go crazy.”
My thoughts are more appropriate for those looking for a sustained career in trading. There are certainly other approaches to the market and I continue to be involved in those with small portions of my available investment capital. In fact, I am currently running a small account that is up 125% since May 2, http://www.myfxbook.com/members/pipwoof/mbo/868585.
For those who want to take a speculative, high-risk approach, there are other ways to think about trading. For example, if a casino would not limit your bet size, what are the odds you could pick Roulette color outcome five times in a row? If you look at a probability table, runs of five consecutive black/red occur frequently. Let’s break our $10,000 into ten parcels and go to a casino that doesn’t limit bet size. Start with $1,000, double the bet size after each win. If you lose, start over. The open question is whether we would be fortunate enough to hit a run of five, resulting in winnings of $32,000 before we tried ten times and lost all our stake.
Most experienced traders have a negative view of Martingale or modified Martingale, but that view may depend on your trading objectives. We can conclude that all Martingales will EVENTUALLY fail because we will inevitably run into that streak that ties us into so many positions we get the margin call. “Eventually” becomes the operative word here and poses the question of what we might be able to do before “eventually” comes along. Starting with $1,000, can I Martingale my way into doubling my account every week for only ten weeks? If I can, I will have a million bucks in a couple of months. And, if I lose that $1,000, can I just take another grand and start over? If I have ten shots for Martingale to survive the margin call, which will happen first? Will I hit my ten winning weeks and be smart enough to walk away or will I try ten times and lose every time? Not to also factor in what I am going to feel like when my bet size is $128,000, $250,000, or $500,000. Another way to play this game is to go for only three weeks in a row. That seems more possible. Turn $1,000 into $8,000, break that into eight more tries, repeat. We are sure to find these higher risk ideas will require some combination of skill and luck to succeed. No matter how good you are, there are some days when the gods of Roulette just don’t cooperate.
I do appreciate you opening the discussion. I will look forward to hearing thoughts very different from mine.
Caveat, caveat. I am in no way suggesting or recommending that anyone try these higher risk approaches. These are especially dangerous for inexperienced traders and for those with limited discretionary capital. When I contribute to BP, I bridle the racehorse and try to offer something grandma might find “reasonable.”