Damon B.
Not for Scalpers or Day Traders:Blocked from opening nearly every position I try to take.
I've been using MooMoo as one of my active trading accounts, and the execution speed and interface are genuinely good — that's not the issue. The problem is that MooMoo restricts opening new positions on a huge share of the volatile, thin-float stocks I actually trade, with orders returning "Order error: you can only close positions for this security. Opening new positions is not supported." This isn't occasional. On one trading day, I attempted to buy into 6 different tickers and was blocked on every single one except one — a 10-for-13 block rate on buy orders that day alone, all on legitimate, actively-trading NASDAQ-listed stocks, not obscure OTC names. I contacted a MooMoo rep who had reached out to me when I opened the account and offered to help with any issues — he never responded. Their AI support essentially told me this is just how it is, with no explanation of what triggers the restriction or whether there's any way around it. For a platform marketed at active/momentum traders, being unable to open positions in the exact stocks that are moving is a major limitation. I understand brokers sometimes restrict extremely volatile names for risk reasons, but the frequency and lack of transparency here made the account nearly unusable for my strategy. I ended up having to run a second brokerage account in parallel just to take the trades MooMoo wouldn't let me enter. If you're a scalper or momentum trader relying on volatile small/mid-cap names, be aware you may find yourself locked out of a large percentage of your target trades with no clear criteria and no real support response.
Response from moomooAug 27, 2026
Hi! Thank you for the feedback & we truly apologize for your experience. To assist you more effectively and provide a proper explanation regarding this matter, we kindly invite you to contact our online customer service team. Our agents will be happy to look into your case and provide the necessary assistance as soon as possible. Thank you for your understanding, and we appreciate the opportunity to resolve this for you.



