how to Open a same url on multiple chrome instances

I would like to know how to open same URL on all my chrome instances at the same time with a single click or paste of the URL, is it possible to run create a script for such or any other possibility?

{
  "urls": [
    "http://www.stackoverflow.com"
  ]
}

for ex: i have 10 chrome instances, i would like to open (xyz.com)
website on all my chrome instances with a single click or paste of
URL.

hope I’m clear with the Problem that i would like to figure it out.