Average Down Calculator

Calculate your new average cost basis when buying more shares at a lower price.

Total Shares
0
Total Cost
$0.00
Average Cost
$0.00
Shares
Price per Share
$
$

How to Use the Average Down Calculator

  1. Enter Initial Purchase: Input the number of shares you first bought and the price per share.
  2. Add Subsequent Purchases: Enter the details for any additional shares you purchased at different prices.
  3. Add More Rows: If you bought shares on more than two occasions, click "Add Purchase" to include more transactions.
  4. View Results: The calculator instantly updates your Total Shares, Total Cost, and Average Cost per share.

What is Averaging Down?

Averaging down is an investment strategy where an investor purchases additional shares of a previously initiated investment after the price has dropped. The result is a decrease in the average price at which the investor purchased the stock.

For example, if you bought 100 shares at $50, and then the price drops to $40, buying another 100 shares at $40 brings your average cost down to $45. This means the stock only needs to rise to $45 (plus commissions) for you to break even, rather than recovering all the way back to $50.

Why Use This Calculator?

Knowing your exact break-even point is crucial for managing risk. This calculator helps you:

  • Visualize the impact of new purchases on your overall position.
  • Determine how much capital is needed to lower your average cost to a specific target.
  • Make data-driven decisions rather than emotional ones when a stock is falling.

Risks of Averaging Down

While averaging down can lower your break-even point, it also increases your exposure to a losing position. This is often referred to as "catching a falling knife." It is important to ensure that the fundamental reasons for owning the stock are still valid before committing more capital.

Frequently Asked Questions

Does this calculator include trading commissions?

This simple calculator focuses on share price and quantity. For a more precise calculation including fees, you would need to add your commission costs to the total cost manually or adjust the share price slightly.

Is averaging down always a good idea?

Not always. It works best for high-quality companies facing temporary setbacks. If a company's fundamentals have permanently deteriorated, averaging down simply compounds your losses.

Can I use this for averaging up?

Yes! The math is exactly the same. If you buy more shares at a higher price (averaging up), this calculator will correctly show your increased average cost.

Strategy Tip

Averaging down increases your position size. Make sure you don't exceed your maximum risk allocation for a single stock.

Don't Just Guess. Backtest Your Strategy.

Averaging down works for some strategies but fails for others. Use Pineify to build and backtest your trading ideas on TradingView data to see what really works before risking your capital.