SPS Blog
Product updates, investment education, and real-world case studies from the SPS team.
Education
8 Mar 2026 · 8 min read
How to calculate your true portfolio ROI (and why most investors get it wrong)
Most retail investors measure performance incorrectly. They compare entry price to today's price — but this ignores dividends, fees, taxes, and the time value of money. Here's the method professionals use.
Read full articleLatest articles
Get new articles in your inbox
No spam. Typically 2–3 emails per month covering product updates and investment education.