[Trading on Italian stock exchange - Milan]

Hi everyone,
I just started trading with IG on a demo account.
I can see that it's possible to buy shares for each enlisted country, but I have noticed that for example, for the Italian Stock Exchange (Borsa Italiana), not all the quoted companies are visible. I give you an example.

Ambienthesis,
https://www.bloomberg.com/quote/ATH:IM 

Quoted on ATH:IM but unavailable on IG. 

Can I ask why?

Thank you very much,
Cristiano

[Hi, I'm Cris]

Hi all,

I'm a new user, just started with training on various trading platforms, IG included.

Looking forward to improve my financial and trading skills, both long term/short term.

I am currently trading stocks on NASDAQ and NYSE, but is there a community forum also in other languages, such as Italian, for example?

Thank you,

Cris