The top aftermarket NYSE losers Tuesday were: Pandora Media, Aircastle, Office Depot, SWS Group, CVR Partners, Cemex SAB, STMicroelectronics, Cedar Fair, Verifone Systems and Forest Oil Corp.

Pandora Media Inc. (P) shares slumped 21.93 percent to $11.14 ion aftermarket trading session as its fourth quarter earnings and first quarter earnings guidance fell short of expectations. The company reported fourth quarter adjusted net loss of $4.7 million or $0.03 per share compared to loss of $0.9 million or $0.01 per share in the same period a year-earlier and against analysts’ estimation of loss of $0.02 per share.

For the first quarter, the company expects adjusted net loss to be in a range of $0.18 to $0.21 per share on revenues of $72 to $75 million compared to analysts’ estimation of loss of $0.02 per share on revenue of $86.58 million.

Aircastle Ltd. (AYR) shares plunged 4.42 percent to $12.99 in aftermarket trading session. The company announced Tuesday that it was informed by funds managed by affiliates of Fortress Investment Group LLC that such funds are offering 5,000,000 common shares pursuant to Aircastle's shelf registration statement which was previously filed with the Securities and Exchange Commission.

Office Depot Inc. (ODP) shares declined 2.91 percent to $2.91 in post market session. The company announced that it plans to conduct a private offering of $250 million of senior secured notes due in 2019.

SWS Group Inc. (SWS) shares declined 2.66 percent to $4.75 in post market trading after plunging more than 5 percent in regular session.

CVR Partners LP (UAN) shares declined 2.64 percent to $24.30 in post market trading session. CVR Energy announced that UAN has filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission in connection with CVR Energy's previously announced plan to sell a portion of its common units representing limited partner interests of CVR Partners.

Cemex SAB de CV (CX) shares fell 2.38 percent to $7.38 in post market trading after plunging more than 5 percent in regular session.

STMicroelectronics N.V. (STM) shares declined 2.05 percent to $6.70 in post market trading session. The stock has a 52-week low of $5.34, a 52-week high of $13.53 and $6.05 billion in market capitalization.

Cedar Fair L.P. (FUN) shares declined 1.91 percent to $26.75 in aftermarket trading session.

Verifone Systems Inc. (PAY) shares fell 1.87 percent to $49.30 in post market trading session. The company stock climbed nearly 8 percent in regular trading after Barclays Capital raised PAY’s fiscal 2012 earnings estimate to $2.66 per share from $2.65 per share and fiscal 2013 estimate to $3.36 per share from $3.34 per share.

Forest Oil Corp. (FST) shares declined 1.85 percent to $11.83 in post market trading session. The stock has a 52-week low of $8.88, a 52-week high of $38.65 and $1.41 billion in market capitalization.

Nyse Barclays Investment Pandora