
Quantum King EA Review: Grid Trading on AUDCAD — Features & Risks
Quantum King EA review covering its grid/martingale strategy, $549.99 price, AUDCAD focus, and MQL5 5/5 rating. Understand the risks before buying.

Quantum King EA is an automated trading robot for MetaTrader 5 that trades AUDCAD using a grid strategy with adaptive martingale recovery. Developed by Bogdan Ion Puscasu—creator of the popular Quantum EA family—it’s priced at $549.99 and holds a perfect 5/5 rating on the MQL5 marketplace.
This review presents the facts about Quantum King EA, including its features, marketplace performance, and the specific risks associated with its grid/martingale trading approach. Understanding these strategy mechanics is essential before considering any purchase.

What is Quantum King EA?
Quantum King EA is an Expert Advisor that runs on MetaTrader 5 and trades the AUDCAD currency pair exclusively. It operates on the M5 (5-minute) timeframe and uses a combination of grid trading and adaptive martingale recovery to generate profits.
The EA was developed by Bogdan Ion Puscasu, who has created several other trading robots in the “Quantum” family, including Quantum Queen (described as one of the highest-rated EAs on MQL5), Quantum Emperor, Quantum StarMan, and Quantum Bitcoin. This established track record suggests experience with EA development, though each product should be evaluated on its own merits.
Quantum King is designed for low-spread accounts (ECN, Raw, or Razor types) and requires hedge mode to be enabled. The minimum deposit is $200, though the developer recommends $500 or more for better risk management.
Understanding the Strategy: Grid + Martingale
Before evaluating Quantum King EA’s features, it’s important to understand the trading strategy it employs, as this directly impacts both profit potential and risk.
Grid Trading Explained
Grid trading involves placing multiple orders at predetermined price intervals above and below the current price. When price moves in one direction, some orders get triggered while others remain pending. The goal is to profit from price oscillations within a range, capturing gains as price moves back and forth through the grid levels.
Martingale Recovery Explained
Martingale is a position sizing strategy that increases lot sizes after losses. The idea is that a winning trade with larger size will recover previous losses plus generate profit. Quantum King uses “adaptive” martingale, meaning the lot size increases are calculated based on market conditions rather than fixed multipliers.
Why This Can Be Profitable
When markets range (move sideways without strong trends), grid systems excel. They capture profits from the natural back-and-forth price movements. The martingale component helps recover from temporary drawdowns when price moves against initial positions before reversing.
Why This Carries Significant Risk
The risk with grid/martingale systems emerges during strong trending markets. If price moves consistently in one direction without meaningful pullbacks:
- Grid positions accumulate in the losing direction
- Martingale increases exposure on each new position
- Account equity can deplete rapidly
- In extreme cases, accounts can be wiped out entirely
This isn’t speculation—it’s the mathematical reality of how these strategies work. Many grid/martingale systems show impressive results for months or years, then experience catastrophic losses during unexpected market conditions. This doesn’t mean they can’t be profitable, but traders must understand what they’re working with.
Key Features
According to the MQL5 product listing, Quantum King EA includes these capabilities:
Adaptive Grid Structure
Rather than fixed grid spacing, the EA dynamically adjusts grid levels based on current market volatility. This aims to avoid placing orders too close together during quiet markets or too far apart during volatile conditions.
Volatility Adaptation
The system expands or contracts its grid based on detected volatility levels. This helps the EA respond to changing market conditions rather than applying a static approach.
High-Probability Entry Signals
The EA uses entry filters to identify favorable starting points for grid positions. This attempts to begin grid sequences when conditions favor mean reversion rather than trending moves.
Simple Setup
Users need only select their risk level—the rest of the parameters are pre-configured. This reduces configuration errors but also means less customization for experienced traders.
Feature Summary
| Feature | Description |
|---|---|
| Strategy Type | Grid + adaptive martingale |
| Grid Spacing | Dynamic, volatility-based |
| Entry Logic | Filtered for high-probability setups |
| Recovery Method | Adaptive lot sizing |
| Setup Complexity | Risk level selection only |
| Live Signal | Available for monitoring |
Technical Specifications
Here are the requirements and parameters for running Quantum King EA:
| Specification | Requirement |
|---|---|
| Platform | MetaTrader 5 |
| Currency Pair | AUDCAD only |
| Timeframe | M5 (5-minute) |
| Minimum Deposit | $200 (recommended: $500+) |
| Leverage | 1:100 |
| Account Type | ECN, Raw, or Razor (low spread) |
| Account Mode | Hedge |
| Current Version | 2.3 |
The low-spread account requirement is notable. Grid systems typically work with tight profit margins on individual trades, so spread costs significantly impact profitability. Standard accounts with wider spreads may produce worse results than the developer’s testing shows.
Pricing & The Quantum Family
Quantum King EA is priced at $549.99 USD as a one-time purchase with no recurring fees.
What’s included:
- Lifetime license
- Setup manual and instructions (sent via private message)
- Access to Quantum community channel
- Developer support
- Free updates
The developer occasionally offers bundle deals—at the time of research, purchasing Quantum King could include Quantum StarMan for free.
For context, Quantum King sits in the mid-range of the Quantum family pricing. Quantum Queen and Quantum Emperor are priced higher, while some newer additions are lower. The $549.99 price point is above average for MQL5 EAs but not in the premium tier occupied by some competitors.

MQL5 Marketplace Performance
According to the MQL5 marketplace at time of research:
- Rating: 5/5 stars (perfect score)
- Reviews: 86
- Demo downloads: 1,881
- Monthly purchases: 98
- Activations: 10
User reviews frequently mention quick return on investment—some claim to have recovered the purchase cost within one to two weeks. Others highlight the accuracy of entry points and “controlled behavior” of the EA.
However, context matters for grid/martingale systems. Short-term results can be misleading because these strategies often show consistent profits until they don’t. A few weeks or months of positive reviews doesn’t indicate how the EA will perform during a strong trend or volatility spike. The 5/5 rating reflects current user satisfaction, not a guarantee of long-term safety.
Pros
Based on available information, here are the notable strengths of Quantum King EA:
Perfect MQL5 Rating
An 86-review 5/5 rating indicates strong user satisfaction. While ratings have limitations, this level of positive feedback suggests the EA performs as described under typical conditions.
Established Developer
Bogdan Ion Puscasu has developed multiple EAs in the Quantum family, with Quantum Queen described as one of MQL5’s highest-rated products. This track record suggests experience and commitment to EA development.
Simple Configuration
Requiring only risk level selection makes the EA accessible to traders without extensive optimization experience. Less complexity also means fewer opportunities for configuration errors.
Low Entry Point
The $200 minimum deposit (with $500 recommended) is accessible compared to many grid systems that require larger capital bases for proper risk distribution.
Active Support
Reviews consistently mention responsive developer support and helpful setup assistance. Post-purchase resources include documentation and community access.
Live Signal Available
A live trading signal allows potential buyers to monitor real-time performance before purchasing. This transparency helps inform buying decisions.
Risk Considerations
Several factors require careful consideration before purchasing Quantum King EA:
Martingale Can Compound Losses
By design, martingale increases position sizes after losses. During extended adverse moves, this creates rapidly growing exposure. What starts as small positions can become account-threatening within a few grid levels.
Grid Accumulates Positions
Grid trading opens multiple positions in the same direction. In a trending market, you might have 5, 10, or more positions all losing simultaneously. Combined with martingale lot sizing, total exposure can exceed what many traders expect.
Single Pair Concentration
Trading only AUDCAD means all risk is concentrated in one instrument. If this pair experiences unusual volatility or a strong trend, there’s no diversification to offset losses.
Account Blow Potential
This isn’t fear-mongering—it’s the documented reality of grid/martingale systems. Many such EAs have excellent track records until market conditions turn unfavorable. A single bad week can erase months of profits and more.
Position Sizing Is Critical
The “risk level” setting determines initial lot sizes. Using aggressive settings on an undercapitalized account increases the likelihood of significant losses. Conservative settings on adequate capital improve survival odds.

Why You Need a VPS for Quantum King EA
Grid and martingale systems have specific requirements that make reliable infrastructure essential:
Continuous Operation Is Critical
Grid systems manage multiple open positions simultaneously. If your EA goes offline, these positions remain open without management. Price can move against you while the EA isn’t running to execute recovery positions or close profitable trades.
Recovery Requires Uptime
The martingale recovery logic depends on placing additional positions when conditions are right. Missing these opportunities means drawdowns last longer and recovery becomes harder. Gaps in operation can turn manageable drawdowns into serious losses.
M5 Timeframe Generates Frequent Signals
Trading on a 5-minute chart means the EA evaluates conditions and potentially acts every few minutes. Even brief outages can mean missed entries, exits, or recovery positions.
Protect Your Capital and Investment
At $549.99 for the EA plus whatever capital you’re trading, running on unreliable infrastructure adds unnecessary risk to an already risk-intensive strategy.
A forex VPS provides the uptime grid trading demands. MT5 VPS hosting with low latency ensures Quantum King EA operates continuously without depending on your home computer and internet connection.
For more information, read about why Expert Advisors need a VPS to perform reliably.

Who Might Consider Quantum King EA?
Based on its characteristics, Quantum King EA may be appropriate for:
- Traders who understand martingale risks — and accept them with eyes open
- Those with dedicated risk capital — money they can afford to lose entirely
- Traders wanting AUDCAD exposure — this relatively stable pair suits grid trading
- Users of the Quantum ecosystem — familiarity with the developer’s other products
This EA is likely not suitable for:
- Risk-averse traders uncomfortable with potential large losses
- Those trading with essential capital
- Beginners who don’t understand grid/martingale mechanics
- Traders expecting “set and forget” safety
Verdict
Quantum King EA comes from an established developer with a track record of popular EAs. The perfect 5/5 MQL5 rating across 86 reviews indicates users are satisfied with performance, and the simple setup makes it accessible.
However, the grid/martingale strategy is inherently high-risk. These systems can produce consistent profits for extended periods, then experience severe losses during unfavorable market conditions. The impressive rating reflects recent user experience, not a guarantee of future safety.
If you’re considering Quantum King EA: understand what grid and martingale trading means, use only capital you can afford to lose completely, demo test thoroughly, and implement conservative position sizing. The live signal provides real-time performance data worth monitoring before purchase.
This isn’t an EA for every trader. But for those who understand and accept the risks, it represents a well-developed implementation of its strategy type from an experienced developer.
FAQ
What is Quantum King EA?
Quantum King EA is an automated trading robot for MetaTrader 5 that trades AUDCAD exclusively using a grid trading strategy with adaptive martingale recovery. It’s developed by Bogdan Ion Puscasu and is part of the Quantum EA family.
Is Quantum King EA a martingale system?
Yes. Quantum King EA uses adaptive martingale recovery logic combined with grid trading. This means it increases position sizes after losses to recover drawdowns. While this can be profitable, it carries significant risk of large losses during strong trending markets.
How much does Quantum King EA cost?
Quantum King EA is priced at $549.99 USD as a one-time purchase. The developer occasionally offers bundle deals that may include other Quantum EAs like Quantum StarMan.
What pair does Quantum King EA trade?
Quantum King EA trades only AUDCAD (Australian Dollar vs Canadian Dollar) on the M5 timeframe. It’s designed specifically for this pair and requires low-spread ECN, Raw, or Razor account types.
Is Quantum King EA safe?
Like all grid and martingale systems, Quantum King EA carries inherent risks. While it has a 5/5 MQL5 rating and users report profits, the strategy can lead to significant losses during strong trends or high volatility. Proper position sizing and risk management are essential. Only trade with capital you can afford to lose.

About the Author
Matthew Hinkle
Lead Writer & Full Time Retail Trader
Matthew is NYCServers' lead writer. In addition to being passionate about forex trading, he is also an active trader himself. Matt has advanced knowledge of useful indicators, trading systems, and analysis.