The company offers imaging services including MRI, CT and PET scans, along with routine diagnostic services such as X-ray, ultrasound and mammography.
Including the session's move, the stock is down 33.7% year to date.
Quarterly results top estimates
Shares of diagnostics device provider Lumexa Imaging LMRI.O rose 4.7% to $12.28.
LMRI reported second-quarter adjusted profit of 20 cents per share, versus analysts' average estimate of 16 cents per share, according to data compiled by LSEG.
The company's second-quarter revenue of $264.2 million beat analysts' average expectation of $263.1 million.