Halftime: 4 Stocks 'Fast' Traders Are Watching

Stocks pared their earlier gains in thin trading Monday amid the lack of economic news and as investors awaited the start of earnings season.

The "Fast Money" traders thought these to be the most interesting stocks by midday trading:

Altria Group (MO) popped 2%: "You're always worried about legal action with the cigarette companies and at this point, I think that's really the headwinds have dissipated," Stuart Frankel's Steve Grasso said. "I would look at Lorillard . It looks like it's a little too high flying now on a technical basis."

NYSE Euronext (NYX) dropped 2%: The stock exchange operator's stock is up all the time, trader Pete Najarian said. After the NYSE rejected the ICE-NASDAQ buyout, though, NYX shares bounced around, but have held onto the $37 level.

Marvell Technology Group (MRVL) dropped 2%: "I think this is a chip name that the demand of the wireless world is going to do better than some of the components of the SMH," said Zachary Karabell, president of RiverTwice Research.

The SMH , by the way, is an exchange-traded fund that tracks semiconductors.

Shaw Group (SHAW) dropped 1.5%: Kanundrum Capital founder Brian Kelly said he'd stay away from this name.

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CALL TO THE FLOOR: LINN ENERGY

Mark Ellis, Linn Energy CEO, discusses why his company's stock has been the top oil and gas pick of the last 12 months.

Watch the video to see the full interview!

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Trader disclosure: On April 11, 2011, the following stocks and commodities mentioned or intended to be mentioned on CNBC’s "Fast Money" were owned by the "Fast Money" traders; Pete Najarian owns (PFE), (TCK), (AAPL), (AKAM), (C), (HK), (HPQ), (TEVA), (MS), (RSX), (GE). Pete Najarian is long (F) bonds. Pete Najarian is long (RIMM) calls. Pete Najarian is long (AVL) calls. Pete Najarian is long (EWZ) calls. Pete Najarian is long (HUN) calls. Pete Najarian is long (ICO) calls. Pete Najarian is long (MYL) calls. Pete Najarian is long (NTAP) calls. Pete Najarian is long (XLF) calls. Pete Najarian is long (PMCS) calls. Pete Najarian is long (BIG) calls. Pete Najarian is long (CVS) calls. Pete Najarian is long (XL) calls. Pete Najarian is long (WFT) calls. Pete Najarian is long (JOYG) calls. Pete Najarian is long (AXL) calls. Pete Najarian is long (BSX) calls. Pete Najarian is long (HBC) calls. Pete Najarian is long (STI) calls. Steve Grasso owns (AMD), (ASTM), (BA), (BAC), (C), (CPX), (CSCO), (D), (JPM), (LIT), (LPX), (MHY), (NDAQ), (PFE), (PRST). Zachary Karabell owns (AAPL), (GOOG) and (BHP). Zachary Karabell is long (AGQ) silver 2X ETF.

Comcast Is The Parent Company Of CNBC
Comcast Is The Parent Company Of NBCUniversal
GE Owns 49% Of NBCUniversal
GE Owns 49% Of CNBC

Steve Grasso
Stuart Frankel & Co and its partners own (CSCO)
Stuart Frankel & Co and its partners own (CUBA)
Stuart Frankel & Co and its partners own (GERN)
Stuart Frankel & Co and its partners own (HPQ)
Stuart Frankel & Co and its partners own (HSPO)
Stuart Frankel & Co and its partners own (MSFT)
Stuart Frankel & Co and its partners own (NYX)
Stuart Frankel & Co and its partners own (PFE)
Stuart Frankel & Co and its partners own (PRST)
Stuart Frankel & Co and its partners own (SDS)
Stuart Frankel & Co and its partners own (UAL)
Stuart Frankel & Co and its partners own (XRX)
Stuart Frankel & Co and its partners are short (QQQQ)
Stuart Frankel & Co and its partners are short (AAPL)

Zachary Karabell
River Twice Capital is short (AA)
River Twice Capital and Karabell own (GS)
River Twice Capital is long (KKR)
River Twice Capital and Karabell own (MON)
River Twice Capital is short (SPY)
River Twice Capital is short (QQQ)

Brian Kelly
Accounts Managed by Kanundrum Capital are long (TBT)
Accounts Managed by Kanundrum Capital are long (GLD)
Accounts Managed by Kanundrum Capital are long (SLV)
Accounts Managed by Kanundrum Capital are long (MON)
Accounts Managed by Kanundrum Capital are long (VLO)
Accounts Managed by Kanundrum Capital are long (EWP)
Accounts Managed by Kanundrum Capital are long (MCP)
Accounts Managed by Kanundrum Capital are long euro futures
Accounts Managed by Kanundrum Capital are long silver futures
Accounts Managed by Kanundrum Capital are long gold futures
Accounts Managed by Kanundrum Capital are long oil futures
Accounts Managed by Kanundrum Capital are long natural gas futures
Accounts Managed by Kanundrum Capital are long wheat futures
Accounts Managed by Kanundrum Capital are long soybean futures
Accounts Managed by Kanundrum Capital are short (XLF)
Accounts Managed by Kanundrum Capital are short (SMH)
Accounts Managed by Kanundrum Capital are short (EWJ)
Accounts Managed by Kanundrum Capital are short treasury bond futures

Dennis Gartman
Funds Managed by Dennis GArtman are long Canadian Dollars
Funds Managed By Dennis Gartman are long crude
Funds Managed by Dennis Gartman are long nat gas
Funds Managed by Dennis Gartman are shot 10 yr canadian bonds
Funds Managed by Dennis Gartman are shorrt 10 yr U.S. treas. notes
Funds Managed by Dennis GArtman are short euros.

Chris Motroni
**No Disclosures

CNBC.com with wires.