Hallador Energy (HNRG) reported Q3 net income late Monday of $0.55 per diluted share, up from $0.04 a year earlier. Four analysts polled by FactSet expected a loss of $0.08. Shares surged 16% in overnight trading.

BigBear.ai Holdings shares jumped 14% in overnight trading after it reported better-than-expected third quarter financial results and announced the acquisition of Ask Sage.

Strive (ASST) said Monday it has closed the initial public offering of 2 million shares of Strive's Variable Rate Series A Perpetual Preferred Stock at $80 per share. Strive shares rose 5% in overnight trading.

Shares of iHeartMedia declined after revenue fell in its latest quarter, driven by lower political advertising sales. The stock slid 10% to $4.09 in overnight trading. Through market close, shares have more than doubled this year.

CoreWeave reported better-than-expected revenue Monday afternoon. But its shares fell after executives said a developer partner is behind schedule in data center development. CoreWeave shares fell 6% in overnight trading following the release.