07:24 AM EDT, 07/08/2025 (MT Newswires) -- ENDRA Life Sciences ( NDRA ) shares were up 140% pre-bell Tuesday following a 2.4% loss in the previous session.

BioSig Technologies ( BSGM ) shares were 30% higher after the company said late Monday it signed deals with an institutional investor for up to $1.1 billion in growth financing.

Optical Cable ( OCC ) shares were up 28%, a day after the company said it secured an investment from and entered into a strategic partnership with Lightera.

Bolt Projects ( BSLK ) shares were 28% higher following a 2.7% decrease in the previous session.

Chemours Co. ( CC ) stock was up 13% after Monday's 3.9% loss.