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Not investment advice. Educational reading. See Disclaimer.
L.1 · INTERMEDIATE · 2 MIN

Anchoring: The Number That Hijacks Your Judgment

Anchoring is the tendency to rely too heavily on the first piece of information you encounter. In investing, this means fixating on irrelevant reference points — a stock’s purchase price, its 52-week high, or an analyst’s price target — instead of evaluating current fundamentals.

Quiz · 5 questions ↓
§ 01
AnchorWhy It’s DangerousBetter Approach
Your purchase priceIrrelevant to future returns — the stock doesn’t know what you paidEvaluate based on current valuation vs. intrinsic value
52-week highPast prices don’t determine future valueCompare current price to fundamental worth
Analyst price targetOften anchored to current price themselvesBuild your own model with independent assumptions
IPO priceAn arbitrary starting point set by bankersValue based on current financials and growth
§ 02

Studies show that even random numbers influence financial decisions. In one experiment, spinning a roulette wheel before asking people to estimate a country’s GDP systematically biased their answers toward the random number.

§ 03
Think of a stock you own. Is your decision to hold it influenced by what you paid? Would you buy it today at the current price if you didn’t already own it? If not, you’re anchored.
§ 04
You bought a stock at $80. It’s now $60. You wouldn’t buy it at $60 today, but you’re holding ‘until it gets back to $80.’ What bias is this?
§ 05

The debiasing technique: Ask yourself ‘Would I buy this stock today at this price?’ If the answer is no, you’re holding because of anchoring, not because of value. Your purchase price is sunk — it should never influence a forward-looking decision.

Five questions · AI feedback

Sit with the ideas.

An analyst sets a $150 target on a stock at $120; another independently values it at $95. You read the $150 target first. How does anchoring most likely distort your subsequent valuation work?

Why:
Try this in paper trading

Dollar-cost average for four weeks

Pick one ETF or stock you'd hold for 10+ years. Paper-buy the same dollar amount of it once a week for four weeks — same day each week. Journal what you noticed about the rhythm of the discipline.

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Practice mode — simulated trades, not investment advice.

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