If someone offers you to invest in something profitable and at the same time offers a fixed percentage of profit per month (especially, and especially if this percentage is significant), then you have a fraudster. Stay away from him
I never believe into HYIP kind of programs which are saying like paying interest on daily basis or weekly basis too. That is very much impossible for any business. But, in my country banks are paying around 0.5% interest rate monthly (actually they are doing per year basis and the rate of interest is around 6% to 7.7% and I'm taking the least one and on monthly basis).
Basically I'm not always ready to believe any new investment opportunities but I am looking for gaining some monthly interest from banks. I believe like 1% of fixed percentage profits will be possible for any business. But, profit sharing like 10% or 25% must not be true. We must stay away from them.
Precisely, these schemes and models might work great for a few weeks or even a few months but they'll still have bad periods, just like even the very best traders do. Therefore offering a high fixed return is never feasible and is almost certainly a scam.
Even best traders are also finding failures time to time. If there are best traders existing then they might be having their own capitals to risk and will never look for others money for their trading purposes and they will not mess up things like paying interests periodically to others. It means, they are making losses that is the reason they need new capital and that is the reason they are offering such a profit-sharing schemes.