Survivorship and the graveyard

Open any trading feed and you will see screenshots of big wins, ten-trade streaks and accounts that "went from $2k to $80k". You will not see the accounts that went from $2k to $0, because those people stopped posting. That is survivorship bias, and it quietly poisons every beginner's sense of what normal risk looks like.

The coin-flip tournament

Put 1,024 people in a room and have each one flip a coin ten times, calling heads a "winning trade".

After the first flip, about 512 are 1-for-1. After five flips, about 32 are 5-for-5. After ten flips, on average one person is 10-for-10.

That person did nothing skilful. But if you only ever saw their results, their "strategy" would look unbeatable. Now imagine the 32 people who are 5-for-5 after a week each posting their record, while the 992 who took a loss go quiet. The feed you are reading is those 32 people.

Trading is not a pure coin flip, but the mechanism is the same: with enough participants, spectacular short-term records appear by chance, and the people holding them are the loudest.

Key idea: A track record you can see is filtered by the fact that its owner survived. The base rate of failure is invisible because failures go silent.

What the base rates actually say

Large academic studies of retail day traders, using complete broker or exchange records rather than self-reported results, have found that after costs only a small minority, on the order of a few percent, are consistently profitable over a year or more, and that the fraction who make more than a modest wage is roughly 1% or lower. The exact number varies by market and period; the shape of the finding does not. Most people who trade actively lose money, and most of the losers lose because of position size and overtrading, not because their entries were slightly wrong.

This is not an argument against trading. It is an argument for knowing which group you are in before you scale up, and for making sure a bad year cannot remove you from the game.

Why survivors oversize

There is a nastier second-order effect. The traders who survived a period of oversized bets with a good streak conclude that oversizing works. They teach it, sell it and post it. The beginners who copy them mostly fail, quietly, and the survivors of that cohort repeat the cycle.

Consider two groups of 100 beginners with an identical, modest edge:

• Group A risks 1% per trade. After a year, most are somewhere between −10% and +30%. None are famous. Nearly all are still trading.
• Group B risks 15% per trade. After a year, a handful are up several hundred percent. Perhaps 70 or more have lost most of their account. The handful are the ones you hear about.

Group B produces the screenshots. Group A produces the traders who are still around in five years.

Reading a track record

When you look at any result, yours included, ask:

1. How many trades? Twenty trades tells you almost nothing. Two hundred starts to mean something.
2. What was the largest single loss as a percentage of the account? If it is above 5%, the account survived by luck, not design.
3. What was the maximum drawdown? A 60% return with a 45% drawdown along the way is a coin-flip strategy that happened to land on heads.
4. What happened to the people who took the same trades with the same size and had a worse sequence?

The last question is the one nobody asks, and it is the one that matters.

Try it: Find three "look at my results" posts in any trading community. For each one, write down whether you can determine the number of trades, the largest loss and the maximum drawdown. Most of the time you cannot, and that is the point.

Recap

• With enough participants, impressive short-term records appear by chance; you only see the survivors.
• Studies of complete trading records find that only a few percent of active retail traders are consistently profitable after costs.
• Oversizing produces both the spectacular winners you see and the many blown accounts you do not.
• Judge any track record, including your own, by trade count, largest loss and maximum drawdown.
• Your goal for the first years is to stay in the surviving group, not to produce a screenshot.