John Wick was released on DVD, Blu-ray and other media on February 3. For the week ending on Feb 8, the film was the top rental and fell to second place among rentals for the week ending Feb 15.
John Wick finished in second place for Blu-ray sales at the end of its first week on the market (Feb 8) and fell to third place for the week ending Feb 15.
Info is from Home Media Magazine at the links above.