If you have been searching for a genuine sentinel predator comparison, you are likely already past the stage of wondering whether automated trading exists. You know it does. What you need now is a clear, honest breakdown of which algorithm fits your situation, how the numbers actually work, and what the real risks are. This page gives you exactly that, with no invented statistics and no promises.
QuantStone runs two in-house algorithms, both built as MetaTrader Expert Advisors. One trades EUR/USD with an aggressive profile. The other trades gold (XAUUSD) with a high-risk profile. Neither one guarantees anything, and this page will be direct about that from the first paragraph to the last.
Before diving into the comparison, it is worth acknowledging the problem that brings most readers here in the first place. Trading the markets yourself requires time, discipline, and the ability to detach your emotions from every decision you make. Most people cannot do all three consistently. Automated systems sold online often promise the world and deliver very little, because their track records are unverified or, in some cases, entirely fabricated. With QuantStone, your funds stay in your own account at a regulated broker and every trade is visible in your own MetaTrader terminal, which is a meaningful distinction. You can read a broader explanation of how these systems operate in this guide to how automated forex trading robots work.
Your algorithms work. You live your life.
2 automated trading algorithms; a real client account history is published on Myfxbook (June 2 to August 3, 2026). Your funds stay in your own account with a regulated broker. A 20% commission on profits only: no profit, no commission. Available to clients outside the United States.
Join QuantStone on Telegram →Trading involves risk and you can lose some or all of your invested capital. Past performance is not indicative of future results. QuantStone is not available to residents of the United States.
The Two Algorithms: What Each One Does
Both algorithms are Expert Advisors running inside MetaTrader, meaning they analyse the market, place trades, and manage positions without any manual input from you once they are set up. If you are unfamiliar with what an Expert Advisor is and how it functions inside MetaTrader, this complete guide to Expert Advisors in MetaTrader covers the mechanics in detail.
SENTINEL: Aggressive Profile
SENTINEL trades one currency pair: EUR/USD. It is classified as an aggressive algorithm, which means it accepts larger drawdowns in pursuit of larger gains. Its results can vary sharply from one month to the next, and no return is guaranteed. The minimum deposit to run SENTINEL is $350.
PREDATOR: High-Risk Profile
PREDATOR specialises in gold, trading the XAUUSD pair. It is positioned as the high-risk algorithm in the QuantStone range. Its results can also vary sharply from one month to the next. No return is guaranteed, and past performance is not indicative of future results. The minimum deposit for PREDATOR is also $350.
Side-by-Side Comparison
| Feature | SENTINEL | PREDATOR |
|---|---|---|
| Risk profile | Aggressive | High-risk |
| Markets traded | EUR/USD | XAUUSD (Gold) |
| Monthly return | Not disclosed | Not disclosed |
| Minimum deposit | $350 | $350 |
| Commission model | 20% on profits only | 20% on profits only |
Running both algorithms on separate accounts is something QuantStone actively recommends, because it spreads your exposure across different markets and different trading styles. This is not a guarantee of better outcomes; it is a basic risk management consideration.
How It Works, Step by Step
- Choose the algorithm that matches your profile. If you want exposure to EUR/USD and can tolerate significant month-to-month variation, SENTINEL may suit you. If you want exposure to gold and accept a high-risk profile, PREDATOR is the starting point. Many investors with more than 500 currently using the service run both on separate accounts.
- Open your account at Startrader. Startrader is a regulated broker and QuantStone's official partner. Your funds go into an account in your own name. QuantStone never holds your capital.
- Your capital stays under your control. You retain full ownership of your account at all times. You can withdraw funds whenever you choose, subject to normal broker processing times. There is no lock-in period.
- Setup takes roughly 15 minutes. The algorithm runs on a VPS provided through Startrader, so you do not need to leave a computer switched on or manage any technical infrastructure yourself.
- The algorithm trades without your intervention. Once live, SENTINEL or PREDATOR (or both) execute trades according to their own logic. You monitor your account; you do not manage the trades.
One common concern for people new to this approach is making early mistakes in the setup process. The article on automated trading mistakes beginners make is worth reading before you go live, because small configuration errors are the most avoidable source of problems.
Transparency and Active Investors
QuantStone's algorithms trade on your own account at Startrader, a regulated broker, and every trade they place is visible in your own MetaTrader terminal. This is not a backtested simulation presented as live performance. You can read more about the SENTINEL and PREDATOR algorithms on the QuantStone site.
More than 500 investors currently use the service. That number reflects the platform as it stands in 2026, and it is the only figure QuantStone will put forward in this context. No testimonials have been invented, no anonymous screenshots of profits have been used as evidence. What you can inspect is your own account, trade by trade, in MetaTrader.
To be direct about something the previous version of this page did not say clearly enough: no return is guaranteed for SENTINEL or for PREDATOR, and results can vary sharply from one month to the next. Nothing on this page says anything definitive about what either algorithm will do next month or next year. Past performance is not indicative of future results. Markets change, volatility shifts, and no algorithm is immune to losing periods.
Your algorithms work. You live your life.
2 automated trading algorithms; a real client account history is published on Myfxbook (June 2 to August 3, 2026). Your funds stay in your own account with a regulated broker. A 20% commission on profits only: no profit, no commission. Available to clients outside the United States.
Join QuantStone on Telegram →Trading involves risk and you can lose some or all of your invested capital. Past performance is not indicative of future results. QuantStone is not available to residents of the United States.
Aligned Interests: The Commission Model
QuantStone charges a 20% commission on generated profits, calculated daily. If the algorithm produces no profit, QuantStone receives nothing. There is no monthly subscription, no setup fee, and no charge for losing periods.
This structure matters because it removes the misalignment that exists with subscription-based services, where the provider earns revenue regardless of whether the client does. Here, QuantStone only earns when you earn. That does not mean results are guaranteed; it means the incentive structure is transparent and directly tied to performance.
Who This Is For and Who It Is Not For
This service suits investors outside the United States who are looking for an automated, rules-based approach to forex and commodity trading, who understand that trading involves risk, and who are willing to allocate capital they can genuinely afford to lose without it affecting their daily lives. It is not suitable for US residents: the partner broker does not serve US clients, and US retail forex is subject to restrictions under CFTC and NFA rules that make this structure unavailable in that market.
It is also not suitable for anyone treating it as a guaranteed income stream, anyone funding it with money needed for rent, bills, or emergencies, or anyone who would be unable to absorb a losing month without financial hardship. QuantStone does not provide investment advice, and nothing on this page constitutes a recommendation to allocate capital to any financial instrument.
If you recognise yourself in the first group and not the second, joining the Telegram channel at t.me/+ZJPJDABDBZ43MGRk is the next step. That is where onboarding questions are answered and where you can speak to the team directly.
Common Objections, Answered Honestly
Is this risky?
Yes. Trading is inherently risky. Both algorithms can and do produce losing months. SENTINEL has an aggressive profile and PREDATOR a high-risk profile. Spreading across both accounts is one way to reduce concentration in a single strategy, but it does not eliminate risk.
Can I withdraw my funds at any time?
Yes. Your funds sit in your own account at Startrader, a regulated broker. You retain ownership and control at all times. Standard broker withdrawal processing times apply, but there is no lock-in from QuantStone's side.
Do I need trading knowledge to use this?
No prior trading experience is required to set up and run the algorithms. Setup takes roughly 15 minutes and runs on a VPS through Startrader. That said, understanding the basics of what you are participating in is always a good idea. The articles on what an Expert Advisor is and how automated forex trading robots work are useful starting points.
What happens in a losing month?
Nothing is owed to QuantStone. The 20% commission applies only to profits. If the algorithm ends the month flat or in a loss, no commission is charged. Your capital in the account reflects the actual trading results, which may be lower than where you started.
Can I run both algorithms at once?
Yes, and QuantStone recommends it as a way to diversify across different markets and risk profiles. Each algorithm should run on a separate account. Both require a minimum deposit of $350 each. You can find the full QuantStone overview in French at quantstone.net/en if that is your preferred language for the detail.
Risk warning
Trading involves risk and you can lose some or all of your invested capital. Past performance is not indicative of future results. Only trade with money you can afford to lose. QuantStone does not provide investment advice and nothing here is a recommendation to buy or sell any financial instrument.