Stock Average Calculator
Calculate weighted average purchase price when averaging down or up across multiple equity orders.
Stock Average Calculator
Calculate your volume-weighted average price per share across multiple buy orders, model Buy on Dips or Pyramiding strategies, solve for required shares to hit a target average, and assess live unrealized P&L.
Purchase Tranches
Enter each purchase tranche with quantity (shares) and buy price per share (₹). Total cost and capital weight are automatically computed.
| # | Quantity (Shares) | Buy Price (₹) | Tranche Total (₹) | Weight |
|---|
Current Market Price (CMP) Valuation
Optional: Enter the live market price to compute your unrealized profit/loss and break-even move.
Target Average Price Solver
Buy on Dip SolverWant to bring your average price down (or up) to a specific number? Enter your target average and expected next purchase price to solve for exact shares and capital required.
Weighted Average Summary
Comprehensive Guide: Stock Averaging, Buy on Dips & Risk Control
1. The Mathematics of Buy on Dips
When a stock price drops, purchasing additional units reduces your Volume-Weighted Average Price (VWAP):
By lowering your cost basis, the percentage rally required to achieve break-even is dramatically reduced. For instance, if you bought 100 shares at ₹1,000 and the stock falls to ₹600, your loss is -40% (requiring a +66.7% rebound to break even). If you buy 100 more at ₹600, your average becomes ₹800, requiring only a +33.3% move from ₹600 to break even.
2. Averaging Up (Momentum Pyramiding)
Popularized by legendary traders like Jesse Livermore and Mark Minervini, pyramiding involves buying more shares as the stock rises and confirms higher highs with high trading volume.
While this raises your average acquisition cost, it enforces the iron rule of trading: add capital only to your winning positions, while ruthlessly cutting losers with disciplined stop-losses.
3. The "Catching a Falling Knife" Trap
Blindly averaging down on fundamentally damaged companies is the single greatest cause of permanent retail capital destruction.
- Debt Distress: Companies facing insolvency or default rarely recover (e.g., DHFL, Yes Bank).
- Governance Frauds: Forensic audit red flags and accounting scandals warrant immediate exit, not averaging.
- Technological Obsolescence: Disrupted legacy business models experience continuous multiple contraction.
4. Indian Statutory Charges on Delivery
Even when your broker offers zero brokerage on equity delivery, Indian statutory charges apply to every transaction:
- STT / CTT: 0.1% on buy and sell delivery turnover.
- Stamp Duty: 0.015% (₹1,500 per ₹1 Crore) levied by the state on buy side.
- Exchange & SEBI: ~0.003% transaction fee + ₹10/Crore SEBI turnover fee.
- 18% GST: Applied on exchange and regulatory charges.
Our calculator factors these statutory frictions directly into your Effective Break-Even Price.
The Target Average Price Solver Formula
If you own $Q_1$ shares at an average price $P_1$, and you want to reduce (or increase) your average price to a targeted price $P_{\text{target}}$ by making a new purchase at price $P_{\text{next}}$, the exact additional quantity of shares $\Delta Q$ required is derived as:
Note that for averaging down, the target price $P_{\text{target}}$ must lie strictly between the current average $P_{\text{current_avg}}$ and the next buy price $P_{\text{next}}$. You can never bring an average price below your next buy price, no matter how many shares you purchase.