NEW YORK (AP) ¿ Three companies said Thursday they have received notices from the Nasdaq Stock Market that they have fallen out of compliance with rules to remain listed. A fourth company was given more time to get back into compliance.

The exchange requires companies to maintain an average $1 per share price for 30 consecutive business days to remain listed.

Companies receiving notices have 180 calendar days to get their shares back to $1. If they don't, Nasdaq will notify them of a potential delisting. The companies may appeal and are frequently given more time.

Among those notified recently are:

¿Anchor BanCorp Wisconsin Inc., which said it received a letter Dec. 4. The Madison, Wis., company is the parent of AnchorBank, which has more than 70 offices in Wisconsin. Shares fell 3 cents, or 4.4 percent to close at 65 cents.

¿South Financial Group Inc., of Greenville, S.C., said it received a notice on Dec. 4. The company said it will consider various options to resolve the deficiency. South Financial is a bank holding company with 177 branch offices in North Carolina, South Carolina, Florida and on the Internet. Shares fell 3 cents, or 5 percent, to close at 55 cents.

¿FiberTower Corp., a San Francisco cell phone tower and service provider, said it received a Nasdaq notice on Dec. 8. The company said it expects to conduct a 1-for-10 reverse stock split, which is expected to allow it to regain the $1 per share requirement. Shares fell 3 cents, or 5.8 percent, to 49 cents Thursday.

¿Dynatronics Corp. said it was granted a 180-day extension to reach compliance with the Nasdaq rule. The Salt Lake City company said its financial results from fiscal 2009 and the trend of five consecutive profitable quarters should help propel the stock upward. It makes medical devices, orthopedic products and other medical supplies. Shares rose 1 cent, or 1 percent, to close at 77 cents.
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