meradOS is an AI trading system that has run a real brokerage account since February: every trading day, no manual intervention, a written thesis behind every order. This page shows the numbers the way an auditor would see them. Including the inconvenient ones.
The question is no longer whether AI will manage portfolios. The question is who holds the evidence when a client or a regulator asks.
Marco trades himself for six months. Models supply ideas, he decides, every trade is written down. The first rules come out of the mistakes.
Notes become a system: a multi-agent pipeline, failover across six model providers, backtests, paper accounts. Refined, discarded, improved.
$30,000 of starting capital in a real account. The system trades on its own, every order with a thesis. The rest of this page is the review.
Every figure below comes from the same series: 133 trading days since February 18, 2026, daily closes, benchmarks indexed to the same starting capital.
| Month | meradOS | Nasdaq-100 | S&P 500 |
|---|---|---|---|
| FebFebruary 2026 | −0.1% | +0.2% | −0.0% |
| MarMarch 2026 | −1.2% | −4.8% | −4.9% |
| AprApril 2026 | +4.3% | +15.7% | +10.5% |
| MayMay 2026 | +47.1% | +10.6% | +5.3% |
| JunJune 2026 | −1.2% | −0.2% | −1.0% |
| JulJuly 2026 | −6.3% | −6.6% | +0.0% |
| AugAugust 2026 | −0.2% | +4.2% | +2.7% |
| SepSeptember 2026 | −0.4% | −1.3% | −0.7% |
The account beat the broad market and the technology index over the same period, at roughly three times the volatility. A beta of 0.43 and a correlation of 0.13 to the S&P 500 mean the result comes from individual decisions, not from the market. On index up days the account captures 103% of the move, on down days 37%.
S&P 500 and Nasdaq-100 via the SPY and QQQ ETFs, adjusted closes, no costs. The account includes real commissions and spreads.
| Since February 18, 2026 | Return | Volatility p.a. | Max drawdown | Sharpe | Best day | Worst day |
|---|---|---|---|---|---|---|
| meradOS live account | +39.6% | 44% | −14.5% | 1.54 | +26.9% | −3.8% |
| Nasdaq-100 | +17.1% | 22% | −11.0% | 1.27 | +3.4% | −4.8% |
| S&P 500 | +11.6% | 14% | −8.6% | 1.27 | +2.9% | −2.6% |
Anyone who wants to work with financial institutions has to supply the counter-arguments. Here are ours.
133 trading days are not a track record that holds up statistically. We call the result a signal, not proof.
On May 11, 2026 the account gained +26.9% in a single day. Without that day it would stand at +10.0%, roughly in line with the market.
44% volatility and a −14.5% drawdown are not a profile for core assets. The account is meant as a satellite.
The path is computed from trades and daily closes so that capital movements of about $24,048, which are not trading results, drop out. After those movements the broker balance is $17,797. None of this is audited. In a call we open the raw data.
Marco sits in Montenegro and trades. Not with a system, but with language models as sparring partners: gather ideas, collect counter-arguments, decide, write it down. Every trade gets a written rationale before it is executed.
After half a year there is a log that shows which rationales made money and which did not. The pattern is clearer than any single decision. It can be turned into rules.
The rules become meradOS: four agents that scan the market every morning, score positions, build a plan and check it before it is executed. Six model providers with priority failover, so no outage costs a trading day.
Paper accounts run in parallel with different strategies, backtests push the past through the same pipeline. What does not hold up is dropped. What remains is one strategy that has earned the move to real money.
$30,000 in a real account, no special treatment. The system trades every weekday at the same time, with no manual intervention. Costs, mistakes, idle days: everything runs, everything is stored.
The result is at the top of the page. More important than the number is that every order behind it carries a thesis that is still readable today.
Banks, asset managers and family offices have clients, custody and regulators. What they lack is a way to run AI-driven decisions so that they stay traceable. That is exactly what meradOS is built for: a building block next to your existing business, not in its place.
Execution through existing brokerage accounts, today Interactive Brokers. Your custody, your limits, your kill switch. meradOS decides; it never holds money.
Every order carries a written thesis with model, confidence and cost. Stored tamper-evident, readable for client meetings and regulators.
Strategy, universe, position limits and cash ratio are defined by your house in plain language. The system follows them and documents deviations.
Six model providers with priority failover. If one fails, the trading day runs on the next. Every call is billed to the cent.
Backtest, paper account and real money run through the same pipeline and the same metrics. What you see in testing is what runs live.
One satellite account, clearly ring-fenced, its own reporting, daily snapshots. It scales only once the numbers justify it.
Trades, theses, costs, mistakes. One hour, screen shared, no slides. Afterwards you will know whether this fits your house.
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