Founder & Author
Ivan Lima
Founder · Stock Market ROI
Systems Analysis & Development student and active US stock market investor since 2018. Ivan built Stock Market ROI to give retail investors direct access to the same data and analytical tools he wished existed when he started. Every article on this site is written from the perspective of someone with real skin in the game — tracking earnings, reading SEC filings, and following market cycles for over eight years.
Stock Market ROI
A free US stock market data platform built for investors who want professional-grade market intelligence without the subscription fees.
What we offer
US Stock Quotes
Live prices, changes and volume for stocks, ETFs and indices during market hours.
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 P&L and allocation charts.
Privacy First
Portfolio data stays in your browser — nothing sent to our servers.
Data Sources
Market data is sourced from Yahoo Finance (quotes, intraday charts, earnings) 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.
Editorial Standards
Fact-Checked
All figures are sourced from public financial data providers and verified before publication.
Independent
No brokerage affiliates or sponsored stock recommendations. Analysis is not influenced by advertisers.
AI-generated stock insights (powered by Claude) are clearly labeled and intended as a starting point for research, not financial advice.
Stock 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.