Hours after sister network CBS closed the books on its upfront sales, the CW has followed suit.

Coming off a smaller base, the CW posted bigger percentage increases than CBS, with both the total haul and CPMs said to be up low double digits from last year. With volume increase believed to be in the 12%-14% range, the CW pre-sold about 80% of its ad inventory, on par with last year, for as much as $500 million, sources said. I hear the growth was driven both by linear and digital, with more deals based on C7 ratings.

The CW is expected to control in-season SVOD rights for next season. Additionally, the network is projecting a ratings boost from the addition of superhero drama Supergirl, which joins flagship series The Flash and Arrow. 

Also as part of its upfront ad sales, the CW has secured several clients to support its social responsibility initiative.

The upfront market is moving fast, with ABC also believed to be closing its sales.