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Average Down Calculator

Calculate new blended cost basis and additional shares needed to lower your average price.

Updated Average Cost Basis
₹450.00
New Combined Quantity200 Shares
Total Capital Invested₹90,000
Shares to Hit Target AvgN/A

How the Calculation Works

Step 1: Input Valuation

Read parameters and compute total exposure: multiply order quantity by contract unit multiplier.

Step 2: Payoff & Boundary Evaluation

Evaluate terminal return at the selected target price using strict financial mathematical boundary logic.

Step 3: Frictional & Premium Netting

Deduct upfront capital commitments, taxes, or net debits to produce final net profit or loss realization.

Calculation Formula

New Average = (Existing Capital + New Capital) / (Existing Qty + New Qty)

Example Calculation

Holding 100 shares at ₹500; buying 100 more at ₹400.

Outcome: New Combined Average: ₹450.00 | Total Shares: 200

Investing ₹40,000 more brings your total cost to ₹90,000 across 200 shares, lowering average to ₹450.

Assumptions & Parameters

  • Averaging down assumes the trader has sufficient free capital buffer.

Frequently Asked Questions

What does averaging down mean?

Buying additional shares of an asset you already own after its price has declined to lower your average purchase cost.

What is the biggest danger of averaging down?

You risk committing more capital to a declining asset, which can lead to large portfolio losses if the stock does not recover.

How do I calculate how many shares are needed to hit a target average?

Required Shares = [Current Shares × (Current Avg - Target Avg)] / (Target Avg - New Price).

When is averaging down considered acceptable?

Only when investing in fundamentally sound assets for the long term, with pre-planned capital allocation limits.

How does averaging down differ from pyramiding?

Averaging down buys as prices fall; pyramiding adds to a winning position as prices rise.

Does averaging down reduce risk?

No. It increases total capital exposure and risk unless position size is capped.