Tools
Averaging Down/Up Calculator
Calculate how your average cost changes when you buy more shares (averaging down or up). Enter your holdings and the added purchase to get the new average and total invested.
Currency
Averaging down
New avg
₩90,000
Total shares 20 shares
Total invested ₩1,800,000
Averaging up
New avg
₩135,000
Total shares 20 shares
Total invested ₩2,700,000
All-stocks total invested₩4,500,000
Formula · New avg = (oldQty×oldAvg + addQty×addPrice) ÷ totalQty
For reference only. Actual taxes, fees, and figures vary by broker, product, and situation.