Compare · September 2026
The Open Stock vs Finviz
Finviz is the faster US stock screener and heatmap. The Open Stock is the better all-in-one if you also want interactive charts, calendars, Fear & Greed, and optional private AI without paying Elite prices. Free Finviz stays delayed and ad-heavy; The Open Stock keeps core research free and ads-free at $4.99/mo.
Independent comparison of The Open Stock (theopenstock.com) and Finviz. Not affiliated with Finviz.
Quick verdict
Choose Finviz if
You only need a lightning-fast US scan or heatmap and already chart elsewhere.
Choose The Open Stock if
You want screener + charts + calendars in one tab, and Elite feels like overkill.
Feature comparison
The Open Stock free tier: Charts, screener, heatmaps, calendars, financials, Fear & Greed — ads-supported. Paid from $4.99/mo ads-free; AI from $9.99/mo. Finviz free tier: US screener + heatmap, delayed quotes, ads. Paid from Elite about $39.50/mo or ~$300/yr.
| Feature | The Open Stock | Finviz |
|---|---|---|
| Free screener | Yes | Yes (US, delayed) |
| Heatmap | Stocks, ETFs, crypto | Excellent US map |
| Interactive charts | Interactive charts + RSI, MACD, MAs, Bollinger | Mostly static on free |
| Calendars | Economic, earnings, dividend, and IPO calendars | Limited |
| Fear & Greed | Yes | No |
| Local / private AI | Optional Ollama (local), BYOK, or hosted AI | No |
| Ads-free price | $4.99/mo | Elite ~$39.50/mo |
Where Finviz wins
- Fastest no-login US screener with 60+ filters
- Best-known free market heatmap
- Hover charts and dense table workflow traders already know
Where The Open Stock wins
- Interactive charts with technicals on the same site
- Economic, earnings, dividend, and IPO calendars
- Ads-free from $4.99/mo vs Elite near $40/mo
- Optional local Ollama AI that does not leave your machine
FAQ
- Is The Open Stock a free Finviz alternative?
- Yes for DIY investors who want a free screener plus charts and calendars. It is not a 1:1 Elite clone — Finviz still wins raw US filter speed and the classic heatmap.
- Does The Open Stock have real-time data like Finviz Elite?
- The Open Stock uses Yahoo Finance and optional Finnhub quotes. Finviz Elite is still the specialist for real-time US scans and exports.
Related comparisons
See every comparison on the compare hub. Official Finviz site: finviz.com.