Oma­da Health priced its shares in the mid­dle of its in­di­cat­ed range at $19 each, valu­ing it at around $1.1 bil­lion. It plans to start trad­ing Fri­day on the Nas­daq un­der the tick­er OM­DA, be­com­ing the sec­ond dig­i­tal health com­pa­ny to go pub­lic this year...