Although shapeshift doesn't be listed on coinmarketcap but ShapeShift now one of the leading SegWit adopters responsible for 2-3% of all trades, All BTC deposits on ShapeShift are now SegWit compatible with integration complete and are then subsequently respent as SegWit transactions to other customers which makes their SegWit transaction volume so high. https://www.cryptoninjas.net/2017/10/06/shapeshift-now-one-leading-segwit-adopters-responsible-2-3-bitcoin-trades/amp/