📉 Stock Averaging Calculator
What Is Stock Averaging Down?
Averaging down (물타기 in Korean) is an investment strategy where you buy additional shares of a stock you already own after its price has fallen. By purchasing more at a lower price, you reduce your average cost per share, making it easier to break even when the stock recovers.
📐 Formula: Average Cost = Total Amount Invested ÷ Total Shares Held
Advantages of Averaging Down
1. Lower Break-Even Price
By adding shares at a lower price, you reduce the average cost per share — meaning the stock doesn't need to return to your original purchase price for you to profit.
2. Faster Recovery
A lower average price means a smaller percentage gain is needed to recover your losses after a dip.
The Risks You Must Know
1. Overconcentration Risk
Continuing to buy a falling stock increases your position in a single asset. If the stock never recovers, your losses compound dramatically.
2. The "Sunk Cost" Trap
Don't average down simply because you already lost money. Evaluate the stock objectively — would you buy it at today's price if you didn't already own it?
3. Cash Flow Risk
Averaging down requires additional capital. If you're running low on liquid funds, this strategy can leave you financially exposed.
Smart Averaging Down Strategy
- Buy in stages: Split your additional investment into 2–3 tranches rather than going all-in at once.
- Check the fundamentals: Only average down if the company's business remains solid — avoid falling stocks with deteriorating fundamentals.
- Set a maximum position size: Decide in advance the maximum % of your portfolio this stock should represent.
- Know when to cut losses: If your thesis is broken, cutting losses quickly is often better than averaging down indefinitely.
* This calculator is for informational purposes only. Investing involves risk, including the possible loss of principal. Always do your own research and consult a financial advisor before making investment decisions.
