Let me tell you about the trading mistake that left the deepest impression on me.

It was when I was just getting started with quantitative trading systems.

The system gave a short signal. I took one look and thought, “That’s the wrong direction,”
so I didn’t take the trade.

As it turned out, if I had taken it, the profit factor would have been 4R.

Even worse, I later used my “own judgment” to go long,
and got stopped out.

That day taught me one thing:
I designed a system because I don’t trust my own intuition.
If I don’t trust the system, what’s the point of having one?

From that day on, I stopped overriding the system’s signals.

#量化交易 #交易纪律 #SystematicTrading
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