What is anchoring bias in trading?
In one line: Anchoring bias is the habit of leaning too hard on the first number you saw, like your entry price or an old high, when you make the next decision.
The idea
Your brain grabs the first number it sees. Then it measures everything else against it.
In trading, that "anchor" is often your entry price. Sometimes it's last month's high, or a round number like 100.
The market doesn't know any of those numbers matter to you.
A simple example
You buy a stock at $50. It drops to $42. Your plan's Stop loss was $46, but you didn't take it.
Now you think, "I'll sell when it gets back to $50." Why $50? Only because you paid it.
The chart might show $45 as the last place price turned around. That's a real level. $50 is just your anchor.
Another one: a stock was $80 last year. Now it's $40. "It's cheap, it was $80." The old price says nothing about where it goes next.
Why it matters
Anchors pull you away from what the chart shows today. They make you:
- Hold a trade past your stop, waiting for "your" price.
- Take profit too early because a number "feels like enough."
- Buy something only because it used to cost more.
Good decisions start from the chart and the plan, not from what you paid.
A common mistake
Moving the stop to stay near your entry. If price heads toward your stop, the anchor says "it'll come back to where I bought." The stop was set from the chart for a reason. Moving it turns a small, planned loss into a bigger one. See how to set a stop loss.
Quick test: cover up your entry price. Would you open this trade right now, at this price? If not, why are you still in it?
Write your exit levels down before you enter, and log whether you kept them in your trading journal. Patterns show up fast.
Questions
What is an example of anchoring bias in trading?
Refusing to sell a losing stock until it returns to your buy price. That price matters to you, not to the market.
How do you avoid anchoring bias?
Set your stop and target from the chart before you enter. Then ask, "Would I take this trade at today's price?" and act on the answer.
Is anchoring the same as support and resistance?
No. A Support level is a place where price actually turned before. An anchor is a number that only matters to you, like your entry.
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