Party: Phil Knight and other Nike employees joke with Ms Davidson at a 1983 party in her honour. Honoured: Ms Davidson received a gold swoosh ring and gift of 500 shares of Nike stock, then worth about $150 but now worth $643,035. Ms Davison told OregonLive that she isn't sure exactly how long designing the swoosh took, but she estimates it was probably more than 17.5 hours.