Real-Time Market Data

Live Stock Market Heatmap — Real-Time S&P 500 & NASDAQ Heat Map

Interactive real-time stock market heatmap with live sector and industry drill-down. Color-coded by price performance across 8,000+ NYSE & NASDAQ stocks.

About Live Stock Market Heatmap — Real-Time S&P 500 & NASDAQ Heat Map

The interactive heatmap visualizes the entire US stock market at a glance. Each tile represents a stock, color-coded by its current price performance: green for gainers, red for losers, with intensity scaling by percentage change. The size of each tile reflects market capitalization, so you can instantly see which mega-cap stocks are driving the market.

Drill into any sector — Technology, Healthcare, Financials, Energy, Consumer Discretionary, and more — to see live performance at the industry level. Zoom into individual stocks to view real-time price, change percentage, and volume. The heatmap updates every second during market hours, giving you a true real-time view of market rotation and sector momentum.

For day traders, swing traders, and anyone who needs to understand market breadth at a glance, BitByte24's live heatmap is an essential tool.

Why Traders Choose BitByte24

Real-Time Data

Live streaming prices updated every second — no 15-minute delays.

Advanced Screening

Filter by price, volume, market cap, momentum, and 50+ criteria.

Smart Alerts

Get notified when stocks hit your target price or volume thresholds.

Reliable & Accurate

Built for dependable market insights across NYSE & NASDAQ.

Full Market Coverage

8,000+ stocks across all sectors, industries, and market caps.

Professional-Grade Tools

Institutional-quality screening, scanning, and analysis for active traders.

Frequently Asked Questions

What can I see on the heatmap?
The heatmap shows every stock as a color-coded tile: green for gainers, red for losers. Tile size reflects market cap. You can drill into sectors (Technology, Healthcare, Financials, etc.) and industries to see live performance at every level.
Does the heatmap update in real time?
Yes. The heatmap updates every second during market hours with live streaming prices. It also works during premarket (4:00 AM–9:30 AM ET) and after-hours (4:00 PM–8:00 PM ET).
How many stocks are on the heatmap?
The heatmap covers 8,000+ stocks across NYSE, NASDAQ, NYSE American, and NYSE Arca — including all S&P 500, NASDAQ 100, Russell 2000, and Dow Jones constituents.
Can I filter the heatmap by sector?
Yes. Click any sector to zoom into its industries and individual stocks. You can also filter by market cap, price range, and performance thresholds to focus on specific segments of the market.
What makes BitByte24's heatmap unique?
BitByte24's heatmap combines real-time streaming data with full sector/industry drill-down, premarket and after-hours coverage, and live color-coding by price performance — all in a single interactive view that updates every second.

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