Micheail Ward was granted a new trial earlier this year.
Ward's attorneys were expected to ask for an order of release with conditions Tuesday, but a judge said he will remain detained.
Ward was sentenced to 84 years in prison after his 2018 conviction for Pendleton's death.
Alleged gunman granted new trial in Hadiya Pendleton murder, Illinois Supreme Court rules
The 15-year-old girl died in a 2013 shooting just blocks from then-President Barack Obama's South Side home.
The teen performed with her school's band just days earlier at Obama's second inauguration.
But last year, a judge overturned Ward's conviction, ruling that his confession was obtained improperly by police.
The Illinois Supreme Court dismissed an appeal in January.
Ward is next due in court May 5.