Petko AleksandrovI sometimes get a gut feeling about an EA before I even finish looking at the backtest. That happened with the Quantum King. Someone from the team pulled it up, showed me the numbers, and my first thought was, “We have to trade this.” Low drawdowns, steady equity growth, and it comes from a developer we already trust. We are already profitable with his Quantum Starman on a live account, so adding another EA from the same vendor felt like a smart move. Still, backtests can lie. So let me walk you through what we actually found.
Real money is involved here, so I am not going to overpromise or set unrealistic expectations. The forex market is risky, and trading robots carry their own set of dangers on top of that. What I will do is share verified data, our live experience, and the honest reasoning behind our decisions.
Quantum King EA Verdict: Quantum King EA is a grid and adaptive martingale forex robot developed by Bogdan Ion Puscasu for MetaTrader 5, designed specifically for AUD/CAD on the M5 timeframe. It currently sits in the top 3 on the MQL5 marketplace with a 4.97 rating from 172+ reviews. The backtest shows an equity drawdown of just 1.82% on a $10,000 account using 0.01 lots, which is impressively low for a grid system. However, grid and martingale systems carry inherent risk, especially during strong trending markets. This EA is best suited for traders who understand how these systems work and can manage their risk accordingly.
- Best for: Forex traders comfortable with grid and adaptive martingale strategies
- Avoid if: You are not comfortable with floating loss or grid systems in general
- Main risk: Extended floating drawdown during sustained AUD/CAD trends
- Our rating: 8.4/10
Last updated: May 2026 | Live test status: Active | Broker used: IC Markets | Pair tested: AUD/CAD
What Is Quantum King EA?
Quantum King EA is a fully automated expert advisor built for the AUD/CAD currency pair on the M5 timeframe. It combines a structured grid approach with adaptive martingale recovery logic, which basically means it opens additional positions when the market moves against it, but it does so in a controlled, calculated manner rather than doubling blindly after every trade.
The EA was developed by Bogdan Ion Puscasu and published on the MQL5 marketplace in October 2025. At the time of our analysis, Quantum King presents itself in the third spot on MQL5 with over 172 reviews and a rating of 4.97 out of 5. That is not easy to achieve. The top-ranked EA on MQL5, Quantum Queen, is from the same vendor, which tells you something about the consistency of his work.
| Field | Details |
| Product name | Quantum King EA |
| Product type | Forex Expert Advisor (trading robot) |
| Developer | Bogdan Ion Puscasu |
| Platform | MetaTrader 4 and MetaTrader 5 |
| Strategy | Grid + adaptive martingale |
| Timeframe | M5 |
| Currency pair | AUD/CAD |
| MQL5 rating | 4.97/5 (172+ reviews) |
| Minimum deposit | $300 (recommended $500+) |
| Leverage | 1:100 |
| Account type | ECN, Raw, or Razor (hedge mode) |
Key Features at a Glance
- Fully automated trading for AUD/CAD
- Grid and martingale hybrid with adaptive position sizing
- Works with deposits as low as $300
- Simple configuration; minimal settings to adjust
- Supports MetaTrader 4 and MetaTrader 5
- 10 activations included with purchase
Who Developed Quantum King EA?
Bogdan Ion Puscasu is the developer behind the entire Quantum EA family, which includes the Quantum Queen (the #1 EA on MQL5, specializing in gold), Quantum Emperor (GBP/USD), Quantum StarMan (multi-currency), Quantum Baron (crude oil), Quantum Valkyrie, and others. That is a large portfolio of trading robots, and from what we have seen, many of them are performing well on live accounts.
What I appreciate about Bogdan as a developer is that he is active in the MQL5 community. He responds to every review, provides setup manuals, runs a private Discord group, and regularly updates his EAs. That kind of ongoing support matters, especially when you are trusting software with real capital.
His track record as a vendor, across multiple expert advisors with strong ratings and thousands of combined reviews, is one of the reasons we decided to test the Quantum King. We already had positive results with his Quantum Starman, so there was a level of trust already established.
Backtest Results That Caught Our Attention
I want to be straightforward: the backtest for Quantum King looks almost too good to be true. And I said exactly that in the video. But the numbers are the numbers, so let me break them down.
Using 0.01 lots on a $10,000 backtest account:
- Equity drawdown: 1.82% ($225)
- Strategy: Grid with adaptive martingale recovery
- Pair: AUD/CAD
- Timeframe: M5
Now, $225 of drawdown on a $10,000 account is exceptionally low for any grid system. Even if you were running this on a $1,000 live account with 0.01 lots, that $225 drawdown translates to under 25%, which is still acceptable for most traders. On a $5,000 account with 0.05 lots (which is what we plan to use), the drawdown would scale up proportionally but remain well within manageable territory.
I want to stress, though: backtests are historical. They show you what would have happened, not what will happen. Market conditions change. AUD/CAD could enter a strong trend that pushes the grid further than historical data suggests. So while these numbers give me confidence, they do not give me certainty.
How Quantum King Trades
Grid and Martingale Strategy Explained
At its core, the Quantum King EA operates as a grid system with what the developer calls “adaptive martingale.” Unlike traditional martingale systems that blindly double lot sizes after every loss, Quantum King adjusts its position sizing based on market conditions and volatility. The algorithm widens or tightens the grid spacing depending on how the market is behaving, which helps keep exposure under control.
The EA opens positions at intervals when the market moves against it, improving the average entry price. When the price eventually retraces (even slightly), the EA closes the entire basket of trades in net profit. This is how most well-designed grid systems operate, but the “adaptive” part is what separates it from cruder implementations. Several user reviews on MQL5 confirm this behavior, noting that even during challenging periods for AUD/CAD, the EA managed to close positions profitably.
That said, let me be clear: this is still a grid system with martingale elements. If AUD/CAD goes into a strong, sustained trend without any meaningful pullback, the floating loss can grow. This is the inherent risk, even with smart position management. I think it is critical for anyone considering this EA to understand that reality before committing capital.
Optimized for AUD/CAD on M5
Unlike many forex EAs that try to trade everything, the Quantum King is specifically built for one pair: AUD/CAD. There is something to be said for that kind of focus. The developer has optimized the algorithm for AUD/CAD’s characteristic price behavior, which tends to be range-bound and mean-reverting compared to more volatile pairs. This makes it a natural fit for grid trading.
The M5 timeframe allows the EA to react quickly to short-term price movements while keeping trade frequency at a reasonable level. From what I have seen in the backtest and early live results, the EA is active enough to generate regular profit but not so active that it overexposes the account.
Quantum King vs Quantum Queen vs Quantum Starman
Since all three come from the same developer, I get asked about the differences frequently. Here is a comparison based on the MQL5 listings and our own experience:
| Feature | Quantum King | Quantum Queen | Quantum Starman |
| Developer | Bogdan Ion Puscasu | Bogdan Ion Puscasu | Bogdan Ion Puscasu |
| Asset | AUD/CAD (forex) | XAU/USD (gold) | Multi-currency (5 forex pairs) |
| Strategy | Grid + adaptive martingale | Grid-based gold trading | Grid system |
| Timeframe | M5 | Varies | Varies |
| MQL5 rating | 4.97 (172+ reviews) | 4.97 (477+ reviews) | 4.83 (104+ reviews) |
| Price | $599.99 | $1,599.99 | $499.99 |
| MQL5 ranking | #3 | #1 | N/A |
| Minimum deposit | $300 | Varies | Varies |
The key takeaway? Quantum King is the most affordable option in the lineup and focuses exclusively on forex (AUD/CAD), while Quantum Queen dominates the gold market and Quantum Starman spreads across five currency pairs. If you want to build a portfolio of EAs from this vendor, they complement each other well since there is no overlap in the instruments they trade.
Our Live Experience with the Quantum Ecosystem
Quantum Starman Live Results
Before getting into Quantum King specifically, I want to share our live experience with Quantum Starman because it directly influenced our decision to trade the King. We have been running Quantum Starman on a live IC Markets account since January 21, 2026.
The results so far:
- Net profit: $465
- Starting lot: 0.06
- Pairs traded: AUD/USD, EUR/AUD, EUR/USD, GBP/USD, USD/CAD
- Auto lot: Disabled (fixed lot sizing)
- All five pairs are in profit
AUD/USD has been the most active and most profitable, followed by GBP/USD and EUR/AUD. The exposure between pairs is reasonably balanced, which gives me comfort about diversification. There are losing trades, naturally, because grid systems will always have periods where positions are open in a drawdown before recovering. But the overall account trajectory has been positive.
VIP Member Results with Quantum Queen
One of our VIP members shared their Quantum Queen account running on a $1,000 IC Markets account, and it has produced nearly 200% returns. I want to be careful here: that is an impressive number, and it further confirmed our confidence in Bogdan as a developer. But I am not presenting it as a guarantee of future results. Different account sizes, risk settings, and market conditions will produce different outcomes.
Adding Quantum King to the Portfolio
The question we are still working through is whether to open a fresh $5,000 IC Markets account for Quantum King or run it alongside Quantum Starman on the existing account. Since the King trades AUD/CAD and the Starman trades AUD/USD, EUR/AUD, EUR/USD, GBP/USD, and USD/CAD, there is no direct pair overlap. The currencies do have some correlation (both involve AUD and CAD), so we are doing further analysis with the team to determine the best approach.
Based on the backtest, I would expect somewhere around 4 to 5% monthly from Quantum King if traded with 0.05 lots on a $5,000 account. But again, I do not want to set unrealistic expectations. Markets can behave differently from backtests, and there will be months that underperform. Whatever we decide, the results will be publicly available on the Algo Trading Space website.
Settings and Configuration
Lot Sizing and Money Management
One of the things I like about the Quantum King is that there really is not much to adjust. The EA comes ready to trade with minimal configuration. Here is what we focused on:
- Auto lot: Set to false (we prefer fixed lot sizing for easier risk calculation)
- Starting lot: 0.01 for our initial backtest; planning to use 0.05 on a $5,000 account
- Money management presets: Available if you prefer automatic lot sizing based on your risk tolerance
- Maximum spread: Built-in protection setting (measured in points)
- Maximum slippage: Another protection setting that limits execution risk
If you enable the auto lot feature, the EA offers predefined risk levels ranging from conservative to high risk settings. For our testing, we keep it simple with fixed lots so the math stays clean and predictable.
Grid and Protection Settings
The grid parameters are adjustable, but we did not change any of the defaults. The developer recommends leaving these as they are unless you have specific expertise with grid systems. Similarly, we did not adjust the currency settings or the permitted trading days.
Essentially, the only thing we changed was the lot size. Everything else stays on defaults. I think that simplicity is a strength, particularly for traders who are newer to expert advisors and do not want to risk breaking something by tweaking parameters they do not fully understand.
Broker and VPS Recommendations
Why IC Markets?
We trade all of our EAs through IC Markets, and there is a specific reason for that. They recently introduced the Raw Pro account, which offers commissions of $1.50 per side ($3 per lot round turn) for accounts with a minimum balance of $5,000. That is among the cheapest we have seen across the brokers we use.
For a grid EA like Quantum King, low spreads and low commissions make a meaningful difference over hundreds of trades. The developer also recommends IC Markets specifically in the MQL5 product listing, along with ECN, Raw, or Razor account types, for the best execution.
VPS Requirements
Running any EA on a VPS is strongly recommended. You need your MetaTrader platform active 24/5 for the EA to manage trades correctly. If your connection drops while the EA has open grid positions, you could miss a recovery opportunity and sit in unnecessary floating loss.
We run all our EAs on a dedicated VPS to keep things stable. The developer also offers VPS recommendations in the setup documentation that comes with the purchase.
Pricing and How to Get Quantum King for Free
| Detail | Information |
| Current price (MQL5) | $599.99 (one-time purchase) |
| Quantum Queen price | $1,599.99 |
| Activations included | 10 |
| Free alternative | Available through Easy Algos with a $5,000 IC Markets account |
| Bonus offer | Buy Quantum King MT5, and you could get Quantum StarMan free (ask the developer) |
The price positioning is interesting. At $599.99, Quantum King is significantly cheaper than the Quantum Queen ($1,599.99) and Quantum Valkyrie ($1,099.99). For a top-3 MQL5 EA, it is actually quite accessible compared to the broader market.
What is also worth noting: Easy Algos has added Quantum King to their platform. If you open a $5,000 live account with IC Markets through Easy Algos, you can trade the EA without purchasing it separately. That is the route we are taking.
Pros and Cons
| Pros | Cons |
| Backtest shows exceptionally low equity drawdown (1.82% on $10K) | Grid and martingale strategies carry inherent risk during strong trends |
| Top 3 on MQL5 with a 4.97 rating from 172+ reviews | Live forward test track record is still under one year (since August 2025) |
| Same vendor as Quantum Queen (#1 on MQL5) and Quantum Starman | Limited to a single currency pair (AUD/CAD) |
| Simple setup with minimal configuration needed | The Martingale component may produce a floating loss during unfavorable conditions |
| Available for free through Easy Algos with IC Markets 5K account | Backtest results may not perfectly reflect future live performance |
| Active developer support and community (Discord) | Not suited for traders uncomfortable with grid systems |
| Works with deposits as low as $300 |
Understanding the Risks
Grid Systems and Floating Loss
I want to spend a moment on this because I think it is the most important section of this full review. Grid trading is not for everyone. The basic concept is simple: the EA opens additional positions as the market moves against you, improving the average entry price. When the market eventually pulls back, the entire basket closes in profit.
The problem? If the market does not pull back, and instead keeps trending aggressively in one direction, you end up with multiple open positions, all underwater. The floating loss can grow quickly, and if your account does not have enough margin to sustain it, you risk a margin call. This is the core risk, even with smart adaptive sizing.
Martingale and High Risk Settings
Quantum King uses what the developer calls an “adaptive martingale” rather than a traditional martingale approach. According to Bogdan, the system does not double lot sizes blindly. Instead, it activates recovery logic only in specific, high-probability scenarios. Several MQL5 reviews confirm that the EA manages to close positions profitably even during difficult periods.
However, you should understand this: any system that increases position sizing after losses carries elevated risk. Even with adaptive controls, there will be periods where the drawdown tests your patience and your account balance. The developer offers eight different risk levels, and I strongly recommend starting with conservative settings rather than chasing higher returns. You can always increase risk later once you have seen how the EA behaves on your own account.
Who Should Consider Quantum King EA?
Based on our analysis and early testing, Quantum King EA is a good fit for:
- Forex traders who understand grid trading and are comfortable with temporary drawdowns
- Traders looking for a focused, single-pair EA that requires minimal setup
- Anyone already running other Quantum EAs who wants to broaden their portfolio without instrument overlap
- Traders with at least $500 to $1,000 in capital (though $5,000 gives you much more flexibility)
- People who want access through Easy Algos without purchasing the license outright
It is probably not the right choice for traders who cannot tolerate floating loss, who expect every trade to be a winner, or who are looking for a “set and forget” approach without understanding what the EA is actually doing behind the scenes.
Who Should Avoid Quantum King EA?
Quantum King EA is not a good fit for traders who want guaranteed returns, cannot tolerate floating drawdown, or do not understand how grid and martingale recovery logic actually works. It is also a poor choice for anyone using a small account with aggressive lot sizing, low leverage, or strict prop firm drawdown limits.
I think this is worth saying plainly: the EA may have strong marketplace ratings and attractive backtests, but it still increases exposure when the market moves against the initial position. That is how the strategy generates returns, and it is also where the risk lives. If watching multiple open trades sit in the red for hours or even days sounds unbearable to you, this is not the right tool.
Traders who expect every single trade to close green, or who plan to set the EA and never check on it, should also think twice. Grid systems require at least a basic understanding of what is happening under the hood, even when the software is fully automated. “Fully automated” does not mean “zero risk.” It means the EA manages the process, but you still need to manage the account.
Frequently Asked Questions
Is Quantum King EA a scam?
Based on available evidence, Quantum King EA does not appear to be a scam. It is developed by Bogdan Ion Puscasu, who has multiple top-rated expert advisors on MQL5 with thousands of combined reviews. The EA holds a 4.97 rating from over 172 reviews and sits in the top 3 on the MQL5 marketplace. We have also verified profitable live results from the same vendor’s Quantum Starman on our own IC Markets account. That said, past performance does not guarantee future results, and every grid system carries risk.
What is the minimum deposit for Quantum King EA?
The developer recommends a minimum deposit of $300, with $500 or more being preferable. However, we trade our EAs with a minimum of $5,000 through Easy Algos on IC Markets. A larger account gives you significantly more margin to withstand drawdowns and allows you to increase lot sizes safely. Trading on a small account with high risk settings is a recipe for trouble, so scale your lot sizing carefully based on your available capital and chosen leverage.
Does Quantum King EA trade gold?
No. Quantum King is designed exclusively for AUD/CAD on the M5 timeframe. If you are looking for a gold trading robot from the same developer, that would be the Quantum Queen, which specializes in XAU/USD and is the top-rated EA on MQL5. The two EAs do not overlap in their instruments, which makes them good candidates for running together in a diversified portfolio across different asset classes.
Can I run Quantum King on a VPS?
Yes, and I strongly recommend it. Running any expert advisor on a VPS ensures your MetaTrader platform stays connected to the broker 24 hours a day, five days a week. This is especially important for grid systems like Quantum King, because if your platform goes offline while the EA has open positions, it cannot manage the recovery trades. A stable VPS prevents missed opportunities and protects against unnecessary floating loss during disconnection periods.
What is the expected win rate for Quantum King?
Based on MQL5 user reviews, traders have reported win rates between roughly 75% and 82%, depending on their risk settings and the observation period. One reviewer shared 19 trades with 15 winners (79% win rate) over a two-week period. Grid systems typically show high win rates because the recovery mechanism closes baskets in profit, but the losses, when they occur, can be larger. Do not judge a grid EA solely by its win rate; focus on net profitability and drawdown control instead.
Is Quantum King EA suitable for prop firms?
The MQL5 listing does not specifically mention prop firm compatibility, and the transcription we based this review on does not address it either. Since Quantum King uses grid and martingale mechanics, many prop firms with strict daily drawdown rules may not be a good fit. If you want to attempt a prop firm challenge with this EA, you would need to test very conservative settings against the specific firm’s rules. Proceed carefully and backtest thoroughly before risking a challenge fee.
Can I trade Quantum King alongside other EAs?
Yes. This is something we are actively planning. Since Quantum King trades AUD/CAD and our Quantum Starman trades five other pairs (AUD/USD, EUR/AUD, EUR/USD, GBP/USD, USD/CAD), there is no direct pair overlap. However, both involve Australian and Canadian dollar exposure, so some currency correlation exists. We are running further analysis to determine whether a shared account or a separate account is the smarter approach. Our findings will be public on the Algo Trading Space website.
How often does Quantum King EA get updated?
The developer, Bogdan Ion Puscasu, updates his EAs regularly. The current version of Quantum King is 3.1, updated in February 2026. In the MQL5 reviews, one user mentioned the EA receives frequent updates, which Bogdan confirmed is a deliberate commitment to optimization. Markets change, and an EA that is not updated will eventually fall behind. Regular updates are a positive sign, not a warning, as long as the developer is transparent about what is changing and why. We are continuing to test the Quantum King EA on a live account and will update this page with new results as they come in. If you want to follow our ongoing testing, including early insights into new EAs before we publish reviews, the Algo Trading Space VIP club gives members exclusive access to live trading results, priority support, and first looks at our latest findings.
