QuantumLyon (quantum-lyon.com) has been flagged by ASIC (Australia) for "Unlicensed". This company appears in our regulatory warnings database. Always verify with official regulatory sources before investing or doing business with this firm. Website domain: www.quantum-lyon.com.
Their execution during news is terrible. I had limit orders in place. When the news hit, my orders were not filled at the limit price - they were filled much worse. QuantumLyon (quantum-lyon.com) said it was market conditions. Same news, another broker filled me properly. They are not honest.
Pros: No hidden fees|Economic calendar|Dedicated account manager
Cons: Limited demo account features|Withdrawal takes 1-2 business days
The platform at QuantumLyon (quantum-lyon.com) is riddled with bugs. Charts display incorrect data, order confirmations sometimes fail silently, and the portfolio tracker disagrees with actual positions. After since the beginning of the year of dealing with this, I have had enough.
Pros: Regular platform improvements|Excellent charting|No hidden fees|Segregated accounts
Cons: Charting tools need more indicators
The platform itself is okay, but the customer service at QuantumLyon (quantum-lyon.com) is truly awful. I waited weeks for a response to a simple inquiry. When they did respond, it felt like a generic template that did not address my specific issue at all.
Pros: Instant funding|API access|Responsive team|Personal attention
Cons: Website design could be more modern|Research section could be deeper
QuantumLyon (quantum-lyon.com) locked my account without warning and demanded documents I had already submitted. since mid-2025 later I still do not have access to my funds. Their compliance team does not respond to emails. I am considering legal action.
Pros: Comprehensive tools|Professional team|Helpful community forum|Intuitive for beginners
Cons: Could offer more webinars
The mobile app from QuantumLyon (quantum-lyon.com) is dangerous. I placed an order that showed as pending, so I placed another. Both executed and I was overexposed. When I complained they said it was user error. The app design is misleading.
Pros: Helpful community forum|Competitive fees|Quick verification
Cons: Nothing significant|Research section could be deeper
I had high hopes for QuantumLyon (quantum-lyon.com) after hearing about them at a conference, but my experience has been disappointing. Customer support is slow, the platform has frequent issues, and their fee structure is not as transparent as advertised. I am actively looking for alternatives now.
Pros: Reliable uptime|Excellent charting|Competitive fees
Cons: Website design could be more modern|Limited ETF selection
Do not be fooled by the professional-looking website. Behind the scenes, QuantumLyon (quantum-lyon.com) is disorganized and incompetent. I found them through a forum discussion and I can only assume the positive reviews are either outdated or paid for because my experience was terrible.
Pros: Fast execution|Real-time alerts|Portfolio tracking tools|Comprehensive tools
Cons: Slow to add new assets
I trusted QuantumLyon (quantum-lyon.com) with a significant portion of my savings and I deeply regret that decision. Not because of market losses, but because of how poorly the platform performed and how dismissively the support team treated my concerns.
Pros: Clear documentation|Market news feed|Fast deposits|Demo account available
Cons: No live chat on mobile|No fractional shares
QuantumLyon (quantum-lyon.com) has the worst mobile app I have ever used for investing. It crashes constantly, features that work on desktop are missing entirely, and the security implementation is questionable at best. How they released this app is beyond me.
Pros: Smooth onboarding|Multi-device support
Cons: No integrated tax optimization
I referred a friend to QuantumLyon (quantum-lyon.com) while looking for alternatives to my previous provider. We both deposited. The referral bonus never arrived. Support said we did not meet the terms. When we asked which terms they pointed to a clause that was added after we signed up. Shady.
Pros: Intuitive for beginners|No hidden fees|Responsive team|Personal attention
Cons: Would like more payment methods|Cannot customize dashboard fully