It lowers your average, but it also increases exposure to a falling stock. Average down only if your thesis for the company is intact.
Stock Average Calculator
Bought the dip? Enter your existing holding and each new purchase to get the new average price, the break-even level, and the total value of the position across all buys. Works for stocks, ETFs and mutual fund units.
New average price
₹450.00
Total shares
200
Total investment
₹90,000
Break-even price (incl. 0.3% charges)
₹451.35
Current value
₹90,000
Unrealised P&L
₹0
0.00%
Running average after each purchase
| # | Qty | Price | Cost | Cumulative qty | Average after this buy |
|---|---|---|---|---|---|
| 1 | 100 | ₹500.00 | ₹50,000 | 100 | ₹500.00 |
| 2 | 100 | ₹400.00 | ₹40,000 | 200 | ₹450.00 |
How the Stock Average Calculator works
Your average price is total money invested divided by total shares held — every purchase is weighted by its quantity. Buying more at a lower price pulls the average down; buying at a higher price pulls it up.
Break-even adds your estimated round-trip charges (brokerage, STT, GST, stamp duty) to the average, so you know the price at which a sale returns exactly your money.
Average = Σ(qtyᵢ × priceᵢ) ÷ Σ qtyᵢ
Worked example
100 shares bought at ₹500 and 100 more at ₹400: total cost ₹90,000 for 200 shares, so the new average is ₹450. At a market price of ₹450 you are at break-even before charges; with 0.3% charges the break-even is ₹451.35.