CoinMarketCap-Style Crypto Market & Portfolio Suite
Live Crypto Market Screener & Portfolio Tracker
Real-time cryptocurrency prices, market cap rankings, 24h volume tracking, and client-side portfolio profit/loss manager.
| # | Asset | Price ($) | 24h Change | Market Cap | 24h Volume |
|---|---|---|---|---|---|
| Fetching live market prices... | |||||
My Crypto Portfolio & PnL Manager
Stored locally on your device| Asset | Holdings | Avg Buy Price | Current Price | Total Value | PnL ($) | Action |
|---|---|---|---|---|---|---|
| No positions added yet. Use the controls above to build your portfolio. | ||||||
Instant Crypto-to-Fiat Converter
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👉View Master Tools IndexNavigating Cryptocurrency Markets, Portfolio PnL & Real-Time Price Tracking
Cryptocurrency markets operate 24 hours a day, 365 days a year across hundreds of decentralized (DEX) and centralized (CEX) liquidity venues. Tracking digital asset valuations, market capitalization rankings, and 24-hour trading volumes allows investors to evaluate market trends, identify momentum breakouts, and manage portfolio risk.
The Live Crypto Market Screener & Portfolio Tracker Suite integrates live CoinGecko API market feeds with browser-based local storage, giving users a private, real-time workspace to track cryptocurrency holdings, calculate cost-basis performance ($ and %), and compute instant crypto-to-fiat conversions across major currencies including USD, EUR, GBP, PKR, and INR.
Governing Mathematical Formulas
This client-side portfolio engine evaluates position performance using standardized investment formulas:
- Position Market Value ($):
Current Value = Holding Quantity × Live Market Price - Position Cost Basis ($):
Total Cost = Holding Quantity × Average Buy Price - Unrealized Profit / Loss ($):
Unrealized PnL ($) = Current Value - Total Cost - Unrealized Return Percentage (%):
Return (%) = [(Current Value - Total Cost) / Total Cost] × 100 - Cross-Fiat Conversion Rate:
Fiat Amount = Asset Quantity × Live USD Price × Fiat USD FX Rate
Worked Calculation Examples
Consider an investor who purchased 0.50 BTC at a cost basis price of $65,000.00 when current live Bitcoin prices trade at $81,500.00:
- Total Invested Principal: $0.50 \times \$65,000.00 = \mathbf{\$32,500.00 \text{ Cost Basis}}$.
- Current Market Portfolio Value: $0.50 \times \$81,500.00 = \mathbf{\$40,750.00 \text{ Current Value}}$.
- Unrealized Profit (PnL): $\$40,750.00 - \$32,500.00 = \mathbf{+\$8,250.00 \text{ Profit}}$.
- Percentage Return: $[(\$40,750 - \$32,500) / \$32,500] \times 100 = \mathbf{+25.38\% \text{ Yield}}$.
Frequently Asked Questions
1. How frequently do live crypto prices update?
Market data updates automatically every 60 seconds directly from CoinGecko's REST API endpoint. You can also trigger an immediate refresh by reloading the page.
2. Is my portfolio data private and secure?
Yes. All portfolio holdings, buy prices, and transaction records are stored 100% locally on your device via HTML5 LocalStorage. No API keys, personal credentials, or financial numbers are transmitted to external servers.
3. What is Cryptocurrency Market Capitalization?
Market Capitalization measures the total USD value of a cryptocurrency's circulating supply. It is calculated by multiplying current circulating token supply by the live market price per token.
4. How are Fiat currency exchange rates calculated?
Fiat conversions utilize benchmark foreign exchange rates (e.g., 1 USD = 278.50 PKR, 1 USD = 83.20 INR) to convert live USD crypto valuations into local fiat currencies instantaneously.
Last updated: October 2026
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