Calculatrice Prix Moyen Action
Calculez le prix d'achat moyen pondéré d'une action sur plusieurs achats. Voyez total investi, quantité totale et P&L non réalisé.
What is a stock average calculator?
A stock average calculator computes the weighted average buy price of a stock across multiple purchase lots. Add as many buys as you have — the calculator returns your true cost basis, total quantity held, total amount invested, and (optionally) the current unrealized P&L.
When to average down
Averaging down lowers your effective entry price and accelerates the path to break-even — but only if the underlying business is still healthy. Re-read the original investment thesis. If the reasons you bought are still true, averaging down can be a high-conviction move. If the thesis is broken, averaging down is throwing good money after bad.
Cost basis vs current value
Your average buy price is your cost basis. The current market value (price × quantity) tells you what the position is worth right now. The difference is your unrealized P&L — paper gain or loss until you sell. Capital gains tax in India only applies on realization, not on paper.
Questions fréquemment posées
- What is the average price of a stock?
- The weighted average price is the total amount invested divided by the total number of shares owned. It represents your true cost basis. Formula: Σ(price × quantity) / Σ(quantity). It tells you the price the stock needs to cross for you to break even.
- Why use a stock average calculator?
- When you buy a stock at multiple prices over time (DCA — dollar-cost averaging) or after price drops (averaging down), your effective entry price is the weighted average — not the first or last price. This calculator gives the precise number for tax filing, position tracking, and exit planning.
- What is averaging down?
- Buying more shares of a stock whose price has dropped, lowering your average buy price. It works if the company is fundamentally sound and the drop is temporary. It's a value trap if the company is in structural decline. Always re-evaluate the thesis before averaging down — don't average down just because the price fell.
- Does this calculator include brokerage and taxes?
- No — this shows the pre-cost weighted average. To compute your true cost basis for tax purposes, add brokerage, STT, exchange fees, GST, and stamp duty to each buy. Use our Brokerage Calculator alongside this for total cost.
- How is this different from CAGR?
- Stock average is your cost basis (a price). CAGR is your annualized return (a rate). They answer different questions. Use stock average to know your break-even; use CAGR (or XIRR for irregular flows) to measure annualized performance.
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