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Tuesday's Late Winners & Losers

Supply-chain management provider CMGI was an after-hours loser, after an earnings miss.

Stocks were mostly sliding after the bell Tuesday, as stocks like

CMGI

(CMGI)

posted disappointing earnings.

Shares tumbled 9.4% after the Waltham, Mass.-based company swung to a continuing-operations loss of $6.2 million in the fiscal fourth quarter, or a penny a share, vs. penny-a-share earnings in the year-ago period. The sole analyst's estimate called for a 2-cent per-share profit, according to Thomson Financial. Revenue dipped slightly to $252.6 million, coming in just under the only Street target.

Shares of the company, a purveyor of supply-chain management services, were trading at $1.45.

Elsewhere, management-services firm

Resources Connection

(RECN) - Get Report

, of Irvine, Calif., made just 23 cents a share in the quarter ended Aug. 1, a nickel under expectations. Shares surrendered $3.08, or 10.5%, to $26.25.

One of the biggest after-hours movers, meanwhile, was

Vonage

(VG) - Get Report

. Shortly before the close, news broke that a jury found it had

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infringed six of

Sprint's

(S) - Get Report

patents and should pay $69.5 million in damages (or 5% of its revenue over the infringing period). According to

Bloomberg

, the company will also owe Sprint 5% royalties on any future revenue.

New Jersey-based Vonage vowed to "vigorously pursue an appeal of the decision," believing that "any damages awarded are inappropriate." After taking a nosedive late in the regular session, shares recovered slightly to add 4.6% at $1.36 in recent after-hours action. Sprint gained 1.6% to $18.72.

Red Hat

(RHT) - Get Report

gained on

positive fiscal second-quarter results. The Raleigh, N.C., application software maker's profit was in line with estimates at 17 cents a share, and sales totaled a better-than-expected $127.3 million. Shares climbed 4.5% to $19.73.

And fiscal second-quarter income at chipmaker

Standard Microsystems

(SMSC)

vaulted 51.3% on slightly higher sales of $97.5 million. The company reported earnings of 59 cents a share, or $14.2 million. Analysts were looking for earnings to flatline at 39 cents a share on sales of $89 million. Shares of the Hauppauge, N.Y.-based company more than took back their regular-session losses, lately bouncing 5.2% to $38 in extended trading.