Broadcaster E.W. Scripps' SSP.O shares rise 12.3% to $3.78
Co launches free, ad-supported 24/7 streaming TV channel Scripps Sports Network
SSN to premiere on Tuesday, March 24; network to be available across major streaming platforms and services
Launch expands on SSP's leadership in women's sports programming
Live coverage will include the Professional Women's Hockey League, National Women's Soccer League, and League Volleyball
Including session's moves, stock has fallen 5.3% this year