What's the largest leverage on this platform?

https://www.keystone-market.com/    

Trading with Keystone Market could be highly risky as it is an unlicensed broker. As such, we strongly suggest you drop the plan to engage with it.

Firstly, Keystone Market fails to disclose its regulatory information and licensing data, which can be interpreted as a scam indicator, as legitimate brokers always prominently display such information.

Secondly, Keystone Market claims that it will do its best to comply with the rules set by the National Futures Association (NFA) even though it is not an member of the NFA. This is a contradictory statement. To truly abide by the law, the first thing to do is to become a member of NFA and accept the supervision of this regulatory agency.

At last, the Ontario Securities Commission (OSC) has issued a warning against Keystone Market, saying it is not registered in Ontario to engage in the business of trading in securities.

In conclusion, do not believe a broker without any license to offer investment services/products. Keystone Market is all talk but no actions in terms of regulatory compliance. Without oversight, once your money and personal information are held by this platform, there are no rules in place to safeguard them. Therefore, we strongly suggest you stay away from unlicensed brokers like Keystone Market and instead choose a fully regulated one.