Discover Financial Services — Shares dropped nearly 7% after Discover Financial Services reported fourth-quarter results. The financial services company reported quarterly revenue of $4.20 billion that topped estimates of $4.10 billion, according to analysts polled by LSEG. Alcoa — Shares dropped nearly 3% after the aluminum producer reported fourth-quarter results. Alcoa posted a narrower-than-expected adjusted loss of 56 cents per share, compared to an expected loss of 86 cents per share, according to analysts polled by LSEG. Talos Energy — Shares of the oil and gas company dropped 5% after Talos Energy issued fourth-quarter revenue guidance in the range of $380 million to $395 million, compared to the $393.5 million expected by analysts polled by FactSet.

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Persons: Fuller — H.B, Fuller Organizations: Discover Financial, Discover Financial Services, LSEG, Alcoa —, Alcoa, Talos Energy, FactSet, QuarterNorth Energy, Riley Securities Locations: LSEG .