http://streeteasy.com/nyc/talk/discussion/31248-streeteasy-coop-index en-us 40 Most recent comments for Streeteasy COOP index <p>Streeteasy, Have you given any thoughts to a SE coop index? Granted the data is not going to go back that far but it seems that last 6-8 years will probably be sufficient to create one with repeat sales.</p> http://streeteasy.com/nyc/talk/discussion/31248-streeteasy-coop-index?comment_id=472885 http://streeteasy.com/nyc/talk/discussion/31248-streeteasy-coop-index?comment_id=472885