Sakkarin Grinara
Founder & Lead Analyst at Rintrade
I research Forex brokers by combining official-source verification with hands-on testing and reproducible data. My aim is simple: make it easier for traders to separate evidence from marketing claims.
Profile reviewed
Why I research brokers
I began learning about financial markets more than a decade ago. One of the lessons that stayed with me came early: I lost a trading account after calculating my lot size incorrectly. It was a basic error, but it made risk, precision, and clear education feel practical rather than theoretical.
I studied Finance and Banking at undergraduate level, where a stock market simulation first drew me into business analysis. I am also a long-term stock investor who uses value-investing principles. That background affects how I look at a broker: not only as a trading platform, but as a business whose claims, costs, and client protections need to be checked.
My work at Rintrade
Rintrade is the broker research system I am building for readers who want to see how a conclusion was reached. My current work focuses on four things:
- checking broker facts against official broker and regulator sources, with a visible checked date;
- testing real trading setups and keeping account type, server, platform, and test window attached to the result;
- publishing methodology, cleaned observations, and checksums so research can be inspected;
- leaving scores and high-change facts unpublished when the supporting evidence is not yet strong enough.
Selected research
Original data study
Lowest Spread Forex Brokers 2026
A synchronized comparison of 19 standard and standard-equivalent broker accounts, based on 67,659 retained observations across seven major currency pairs. The public research includes Bid, Ask, spread data, methodology, a cleaning summary, and SHA-256 checksums.
- Accounts compared
- 19
- Observations
- 67,659
- Study checked
How I approach the work
- Start with the exact question. A spread test, safety review, and country-availability check need different evidence.
- Keep the source beside the claim. High-change facts need a source record and checked date, not a confident-sounding sentence.
- Show the limits. A short market sample is a dated snapshot. A quote is not the same as execution cost.
- Make the result reproducible where possible. For data studies, that means publishing cleaned inputs, calculations, and validation details.
Independence and disclosure
Rintrade may earn a commission when a reader uses an eligible broker link. That commercial relationship does not decide which brokers are measured, how they rank, or whether a claim is marked as verified. I do not treat affiliate status as research evidence.
Broker terms and regulatory details can change. Every review should be read together with its source dates and limitations, and readers should verify the entity and protections that apply in their own country before opening an account.