Why did RPX rise today any news?
no news. NEO and ETH were raising pretty fast so people sold some of their RPX for these coins. But as soon as the pump lost it's momentum, they converted back to RPX.
https://www.kucoin.com/#/trade/RPX-ETHIn terms of ETH, RPX has only been loosing it's value recently, so I would say it's a pump if it makes at least 3x which is pretty easy on such a thin market. 10 BTC it more than enough to move the price 3x.