Independent portfolio management
JonatanMars Invest is an independent, licensed investment firm. We manage portfolios for individuals and companies using a disciplined, evidence-based process, with transparent fees, a clean app, and a real advisor you can actually reach.
Intelligent investing, made human.
Capital at risk. Investing involves risk: the value of investments can go down as well as up, and you may get back less than you invested. Past performance and any simulated/back-tested performance are not reliable indicators of future results. Tax treatment depends on individual circumstances and current law, both of which can change.
Illustrative interface, not a performance figure
The problem we solve
Most people's money is either sitting in a bank account losing ground to inflation, scattered across a few funds a bank sold them, or riding on do-it-yourself decisions there never seems to be enough time for.
You don't need another app that turns investing into a second job, and you shouldn't need €500,000 and a private banker to get a portfolio managed properly. You need a disciplined process, run by people who do this for a living, who tell you exactly what they do and what it costs.
That's what we are.
How we're different
Most providers offer one or two of these. We combine all three.
A systematic, factor-based process grounded in decades of peer-reviewed research, with explicit risk management and a named human governing every decision. Discipline over emotion, evidence over hunches: built for the long term and for managing risk, not for lottery tickets.
A clean mobile app. Verify your identity, complete a suitability profile, sign your agreement in-app, fund by bank transfer, and watch a transparent portfolio with honest reporting. No branches, no paperwork, no fog.
A named advisor you can call, email, or meet. Real answers, and a calm voice when markets get noisy. The opposite of a faceless robo-app, and the opposite of a queue at the bank.
What we offer
Professionally managed portfolios matched to your risk profile, through two strategies: Smart Beta (efficient, factor-based, built on ETFs) and Alpha (active, quantitative, individual global stocks). We cover all trading costs.
The new Slovenian tax-advantaged Individual Investment Account, professionally managed by us, not left for you to run alone. Tax handled for you; you focus on the long term.
Most company cash earns close to nothing. We manage the surplus portion in a liquid, money-market solution at a low fee, so it works without being locked away.
Why people choose us
We manage your money, not products. Here's what that means in practice.
How it works
Sign up in the app and complete identity verification (KYC) digitally.
A short regulated suitability questionnaire places you on a 1–7 risk scale.
Pick the strategy or account that fits; sign your agreement in-app.
We invest and rebalance with discipline. You follow everything in the app and in clear periodic reports.
Built on trust
An investment firm licensed and supervised in Slovenia.
Your assets are kept separate from ours, at our custodians.
Statutory investor-compensation cover up to €22,000 per investor. It protects against the firm failing to return your assets, not against investment losses.
On holdings, performance, transactions, and every fee.
What we promise is not a number. It's a disciplined process.
A calm word on risk
Investing means accepting risk; anyone who tells you otherwise is selling something. We never promise a return. We promise a disciplined process, honest communication, and a portfolio matched to how much risk is right for you.
Markets fall sometimes. Our job is to make sure that when they do, you're positioned for the long term, not panicking.
Capital at risk. Investing involves risk: the value of investments can go down as well as up, and you may get back less than you invested. Past performance and any simulated/back-tested performance are not reliable indicators of future results. Tax treatment depends on individual circumstances and current law, both of which can change. This website is a marketing communication. It is not investment advice, a personal recommendation, or an offer to enter into any contract. Detailed pre-contractual information is provided before any agreement is concluded.
Let's talk
A free, no-obligation conversation. We'll listen, explain how we'd approach your situation, and you decide if it fits.