Well no one else here has tackled this so far, so here is my humble opinion, and I am not even going to mention the validation issues or the mix of inline and linked CSS.
To me your site does not look professional. Besides not understanding what it's about, although I do have a vague idea about the stock market, there is no specific information on your site explaining what you do. That's fine if your clients already know what they want, but for someone who is looking for information and who happens on your site, it would be take a look, don't understand and leave.
From a design point of view:
You are using a lot of the same size fonts so none of the points you want to stress or advertise are standing out.
Your
is the same size as the "We are still under development". They are also no clickable links to explain or expand on each feature.
The header logo is very small and amateurish and your whole site lacks colour.
In fact the only thing that really stands out are the Google ads on the right hand side because there is some change in colour and font.
I am not a fan of Facebook at the best of times, but you are linking to a social networking site on which you have very few "friends" - One look at that and I would certainly not take the advice from your site about investing my hard earned money, especially with the huge disclaimer at the bottom of every page. Said disclaimer should be written much smaller and be a link to a separate page from the footer with all the legalese.
Sorry to be so disheartening, I am sure you are very good at what you do, unfortunately your website does not translate it.