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slid Wednesday after the insurer said February per-share income plunged 21% to 13 cents a share, or $94.7 million. Shares were off 49 cents, or 2.3%, to $21.29.

H&R Block

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sank in early trading after the tax preparer announced a heavier fiscal third-quarter loss from what it originally posted in February, after conducting a more rigorous review of its subprime-lending unit, Option One Mortgage.

Losses are now reported as $60.3 million, or 18 cents a share -- 4 cents wider per share than the original filing. Last year it earned $12.1 million, or 4 cents a share. H&R plans to sell Option One and filed the related loss under "discontinued operations." After trading down earlier, shares were up slightly by 8 cents, at $20.13.

BankUnited Financial

( BKUNA) gained after a Stifel Nicolaus analyst predicted that its credit costs, though likely to rise, will probably be contained. He upped the Florida-based bank's rating to hold from sell. Shares were up 92 cents, or 4.5%, to $21.38.

Knight Capital


rose in mixed trading Wednesday after the online broker said the dollar value of its February trades rose to $9.82 billion -- a 10% increase over last year and an 8% gain from January. Shares were rising 41 cents, or 2.7%, to $15.71.