There was even less activity amongst traders after the closing bell rang Wednesday, than there was in the regular session. The significant mover was Sallie Mae (SLM) - Get Report.

The Reston, Va., student lender dropped more than 6% after setting plans for a $2.5 billion stock offering, consisting of $1.5 billion in common shares and $1 billion in mandatory convertible preferred shares.

$2 billion of the proceeds are planned for buying back around 44 million shares under an outstanding equity forward-purchase contract. Any remaining capital will go to general corporate purposes. Shares were sliding $1.38 to $20.75 in recent after-hours trading.

Among other recent post close decliners, communication-equipment maker

Infinera

(INFN) - Get Report

lost 3.1%;

U.S. Airways

(LCC)

gave up 0.9%; and

Fifth Third Bancorp

(FITB) - Get Report

was recently off 1.2% to $26.26.

On the winning side lately were solar-power companies

China Sunergy

(CSUN)

and

Evergreen Solar

( ESLR), as well as software firm

China Technology Development

( CTDC). Shares were adding 10.1%, 1.5%, and 3.3%, respectively.