Top Ships (TOPS) shares were up 93% in Tuesday premarket activity following a nearly 1% gain in the previous session.

Quanome Technologies (QNME) stock was 73% higher after a nearly 15% rise in the previous session.

Greenland Mines (GRML) shares were up 47%, extending a 230% rise in the Monday session.

GD Culture Group (GDC) stock was 30% higher, following a 14% rise in the earlier session.