House of Doge (HODO) shares were down 29% in premarket activity Monday, partially reversing the 38% rise at the prior close.

Mixed Martial Arts Group (MMA) stock was 18% lower following a 24% rise in Friday's session.

Robo.ai (AIIO) shares were down 12% after the company said Friday it is planning a 1-for-25 reverse stock split, subject to shareholder approval, with an extraordinary general meeting scheduled for Oct. 26.

Linkhome (LHAI) stock was 10% lower, extending the 2% loss from the previous session.

Telekomunikasi Indonesia (TLK) shares were down 7% after a 14% fall in Friday's close.