This is one of these names that is decent and sound yet the word combination just does not propell the concept further.
I think readystocks.com would be a site about stocks that are "ready" ie stocks that are about to make a move (up or down, or god knows given our economy what they would be ready to do) -see ripe stocks.
I think that's what you had in mind but this may not be very obvious to everyone. Maybe you thought of something else even.
ALso, if you are looking to throw this in the domain resale market undeveloped, you may not get too many takers right away. They must be looking to promote readystocks. Just too many "stocks" domains out there and ripestocks.com is free to reg.
Even though I d like to see a site listing "ready stocks" and how to ...readily trade them, I would say develop it some and get up to $400.
Good luck!