Thursday, August 30, 2007

Avoid Making Predictions in the Market (Indonesian comment below)

Written by Dr. Van K Tharp |

Most people make a big deal out of market prediction. They think they need to be right 70% or better in order to "pass" the exam that the market gives them. They also believe that they might get an "A" if they could be right 95% of the time. The need to predict the market steps from this desire to be right. People believe that they cannot be right unless they can predict what the market is doing.

Among our best clients, I have traders who continually make 50% or more each year with very few losing months. Surely, they must be able to predict the market very well to have that kind of track record. Well, I recently sent out a request for predictions and here is what I got back from some of the better traders.

Trader A; "I don't predict the market, and I think this is a dangerous exercise."

Trader B: "…these are just scenarios, the market is going to do what the market is going to do."

Ironically, I got these comments from them despite the fact that I was not interested in any of their specific opinions, just the consensus opinion.

So how do they make money if they have no opinions about what they market is going to do? Well, there are five critical ingredients involved:
1. They follow the signals generated by the system.
2. They get out when the market proves them wrong.
3. They allow their profits to run as much as possible—meaning they have a high positive expectancy system.
4. They have enough opportunity so that there is a great chance of realizing the positive expectancy any given month and little chance of having a losing month.
5. They understand position sizing well enough so that they will continue to be in the game if they are wrong and make big money when they are right.

Most traders, including most professionals, do not understand these four points. As a result, they are very much into prediction. The average Wall Street Analyst usually makes a large six-figure income analyzing companies. Yet very few of these individuals, in my opinion, could make money trading the companies they analyze. Nevertheless, people believe that if analysts tell you the fundamentals of the marketplace, someone can use that information to make money.

Others have decided that fundamental analysis doesn't work. Instead, they have chosen to draw lines on the computer or in their chart book to analyze the market technically. These people believe that if you draw enough lines, and interpret enough patterns, you can predict the market. Again, it doesn't work. Instead, cutting losses short, really riding profits hard and managing your risk so that you continue to survive is what really makes you money. When you finally understand this at a gut level, you will know one of the key secrets to trading success. In the meantime, we will continue to make predictions in our column, so that you will begin to understand that they are entertaining, but nothing more!

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My additional comment :
Sometimes I feel funny if some people grumble and complaining to me about some wrong analyze prediction. Maybe they thought that if people dare to predict, means they should be right at least 90%. But who can predict market actually ? From this article I got support not to rely 100% on prediction without knowing the risks. Most of to optimistic prediction (or maybe force prediction) is dangerous for mature trader.
Balancing with the money management avoid us from 101 predictions. And just like the author said, maybe we can begin to understand, prediction is just entertaining, nothing more... it can't save your money.
I also never said that prediction is bad for us... no... please read the second rules in critical ingredients above... if the market proves that your prediction is wrong, get out from the market, not get stuck on it. And this action will save your money.

In Indonesian translation :
Terkadang saya merasa cukup aneh dengan beberapa orang yang menggerutu dan curhat ke saya tentang prediksi yang salah dari analis-analis. Mungkin mereka berpikir orang-orang seperti ini seharusnya kalau sudah memprediksi berarti kudu atau harus benar, paling tidak 90%. Tapi kenyataannya, siapa sih sebenarnya yang dapat memprediksi pasar ? Dari artikel di atas saya merasa mendapat dukungan untuk tidak 100% mengandalkan prediksi tanpa mengetahui resikonya. Kebanyakan prediksi yang terlalu optimis dan kesannya memaksa malah membahayakan untuk trader-trader yang baik.
Keseimbangan dalam money management akan menghindarkan kita dari 101 jenis prediksi yang ada. Dan seperti yang telah disebutkan oleh penulis artikel ini, mungkin kita dapat mulai menjadikan prediksi sebagai hiburan tersendiri (abis seru kan emang..., namanya juga prediksi), tidak lebih. Bagaimanapun prediksi tidak dapat menyelamatkan uang Anda. Tapi bukan berarti prediksi itu jelek, tidak... coba baca jelas peraturan kedua dalam unsur-unsur yang harus diperhatikan dalam trading, jika pasar membuktikan prediksi kita salah, seharusnya kita segera keluar dari pasar, bukan malah terjebak di dalamnya. Ini yang baru namanya menyelamatkan uang.


1 comment:

  1. I will post your comment in to one topic itself. So people also can read the article... thx papa bigggg :)

    ReplyDelete