Stock Market ROI
A free, real-time US stock market data platform built for investors and enthusiasts who want professional-grade market intelligence without the subscription fees.
Our Mission
We believe that access to quality financial market data should be open and accessible to everyone. Stock Market ROI aggregates real-time and historical data from trusted providers and presents it through a clean, fast interface — so you can focus on making informed decisions, not on navigating complex tools.
What we offer
Real-Time Quotes
Live prices, changes and volume for stocks, ETFs and indices.
Interactive Charts
Intraday and historical charts from 1 day to 15 years.
Earnings & Dividends
Upcoming earnings and dividend calendars for S&P 500 stocks.
Portfolio Tracker
Track your holdings with real-time P&L and allocation charts.
Privacy First
Portfolio data stays in your browser — nothing is sent to our servers.
Data Sources
Market data is sourced from Yahoo Finance (real-time quotes, intraday charts, earnings timestamps) and Marketstack (historical end-of-day prices, dividend events). Data is provided for informational purposes only and may be delayed or subject to the providers' terms of service.
Contact
Questions, feedback or data corrections? Reach us at:
contato@ivanlimadev.comStock Market ROI does not provide investment, tax or legal advice. All content is for informational purposes only. See our Terms of Use and Privacy Policy.