Pops & Drops: Berkshire Hathaway, Harley Davidson...

Following are the week’s biggest winners and losers. Find out why shares of Berkshire Hathaway and Johnson Controls popped while Harley-Davidson and Advanced Micro dropped.

POPS (stocks that jumped higher)

Berkshire Hathaway (BRK.B) popped 6%. A 50-1 stock split made shares more accessible for most investors and also led to speculation it could soon be included in the S&P 500. - Interesting, says Tim Seymour.

Johnson Controls (JCI) popped 4%. The auto parts supplier increased its full year forecast and gave an upbeat outlook.

UnitedHealth (UNH) popped 2%. Goldman Sachs added this name to its Conviction Buy list, however many stocks in the sector surged after the GOP candidate won in Massachusetts ending the Dem’s filibuster-proof control of the senate.

DROPS (stocks that slid lower)

Harley-Davidson (HOG) dropped 8%. The largest US motorcycle maker reported a Q4 loss due to weak demand and lower margins. - If you're short I'd take it off around $23, says Joe Terranova.

Advanced Micro (AMD) dropped 12% Investors found the company's latest financials statements confusing and worried about the company’s ability to meet long-term challenges that lay ahead. - It may be getting interseting, muses Guy Adami.

American Express (AXP) dropped 8%. Investors took profits after the company’s earnings beat forecasts.

Schlumberger (SLB) dropped 8%. The company said its earnings fell 31% in the fourth quarter due to weak demand and pricing. - I don't think it's a buy but it's getting close, says Pete Najarian.

Capital One (COF) dropped 10%. Despite better than expected earnings, investors sold the stock on concerns delinquencies remained high. - Wow, says Tim Seymour.

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Trader disclosure: On January 22nd, 2010, the following stocks and commodities mentioned or intended to be mentioned on CNBC’s Fast Money were owned by the Fast Money traders; Adami Owns (AGU), (C), (GS), (INTC), (MSFT), (NUE), (BTU); Najarian Owns (CLF) Call Spread; Najarian Owns (GS) Call Spread;; Najarian Owns (INTC) Calls; Najarian Owns (MS), Is Short (MS) Calls; Najarian Owns (XLF) Calls; Najarian Owns (TEVA); Seymour Owns (AAPL); Seymour Owns (BAC); Seymour Owns (FXI); Seymour Owns (INTC); Seymour Owns (INFY); Seymour Owns (SBUX); Terranova Is Short (CMA), (ESS), (CAL); Terranova Owns (BAC), (JPM), (XOM), (FTO), (FCX), (EMC), (AAPL), (DELL), (MSFT), (QCOM); Terranova Owns March Copper Futures

GE Is The Parent Company Of CNBC

For Tim Seymour
Seygem Asset Management Is Short (PBR)

For Joe Terranova
Terranova Works For (VRTS)
Terranova Is Chief Market Strategist Of Virtus Investment Partners, Ltd.
Virtus Investment Partners Owns More Than 1% Of (CLB)
Virtus Investment Partners Owns More Than 1% Of  (DLR)
Virtus Investment Partners Owns More Than 1% Of  (EXR)
Virtus Investment Partners Owns More Than 1% Of  (IGE)
Virtus Investment Partners Owns More Than 1% Of (XLY)
Virtus Investment Partners Owns More Than 1% Of  (DBV)
Virtus Investment Partners Owns More Than 1% Of  (UA)
Virtus Investment Partners Owns More Than 1% Of  (XLB)
Virtus Investment Partners Owns More Than 1% Of  (XLI)
Virtus Investment Partners Owns More Than 1% Of  (SKT)

For Brian Stutland
Stutland's Firm Is A Market Maker In VIX Options & Futures, Is Short Volatility
Stutland's Firm Is A Market Maker In S&P 500 Options, Is Long Volatility|
Stutland Owns (EMC)
Stutland Is Short (SPY)

For Brian Kelly
Kanundrum Capital Owns (BAC)
Kanundrum Capital Owns (JPM)
Kanundrum Capital Owns (C)
Kanundrum Capital Owns (ACH)
Kanundrum Capital Owns (GE)
Kanundrum Capital Owns (CNI)
Kanundrum Capital Owns (EWA)
Kanundrum Capital Owns (EWC)
Kanundrum Capital Is Short U.S. Dollars Against Short Euro, Yen, Swiss Francs
Kanundrum Capital Is Long British Pounds Against Short Dollars
Kanundrum Capital Is Long April Gold
Kanundrum Capital Is Short (GS)
Kanundrum Capital Is Short (EWY)

For Peter Schiff
Schiff Owns Gold
Schff Is Short U.S. Dollar

Other Relevant Disclosures:

Seymour Owned (GOOG) On 1/21/10
Terranova Was Short Feb. Crude Oil Futures On 1/11/10
Najarian Owned (HUM) Call Spread On 1/14/10, 1/15/10
Najarian Owned (CLF) On 1/5/10