someone put up a 16BTC sell wall just to scoop up some cheaper coins i think
Or they're just trying to get out at the price they got in over the last week since the whitepaper resulted in no pump at all

Not saying SC doesn't deserve to be higher, just that in cryptoland price doesn't always go to what it "should" be, but instead to what market manipulators do with it - they're the ones throwing around large amounts of btc.