Tizionario on "Add dynamic content before the loop"

<div id="slider>
   <ul>
      <li>A slide</li>
      <li>A slide</li>
      <li>A slide</li>
      <li>A slide</li>
   </ul>
<div>

I've simplified the output as well, hope this could be helpful.
The content is retrieved dynamically with some permalinks, but I don't thinks this is an important piece of information, what I would know is: is there a way to add this content before each post in the homepage using some kind of hook?

I tried with the_content, but it doesn't work as I would