The shares of Union Pacific (UNP), which I first discussed here on March 27, 2009, at a price of $43, have failed three times this winter to break through major, psychological resistance at $100. Needless to add, if you haven't already, now may be a good time to consider taking some profits if you're in near $43.

However, those investors who can tolerate the risk can maintain their full position in UNP, but keep in mind that the journey to $120 probably will not be completed in 2011.

Union Pacific Corp. (UNP), a railway concern whose colleagues include CSX Corp. (CSX) and Norfolk Southern Corp. (NSC), was down 2.6% to $94.78 at one point during today's afternoon session. Why is the market unhappy with the stock? The catalyst was an earnings report. Were the numbers so bad?

After reading a summary of the company's fourth quarter by the Associated Press, I came away thinking that the stats were actually quite attractive. Net income jumped 44% to $1.56 per share. This figure was eight pennies ahead of the overall projection.

Analyst Upgrades

• Citigroup upgraded Colgate (CL) and Phillips-Van Heusen (PVH) to buy from hold.
• Wells Fargo upgraded IDACORP (IDA) to outperform from market perform.
• Union Pacific (UNP) was upgraded to outperform from neutral at RW Baird.
• Goldman upgraded Quicksilver (KWK) to neutral from sell.
• Republic Airways (RJET) was upgraded to buy from hold at Deutsche Bank.
• BofA/Merrill upgraded GAMCO Investors (GBL) to neutral from underperform.
• Senior Housing (SNH) was upgraded to outperform from market perform at JMP Securities.

Railway company CSX (CSX) shares are up for the year. Even though the chart may look choppy, the stock is up nearly 35% year-to-date. Tuesday, it closed at a price of $57.26. After the bell, the company, which competes with such companies as Norfolk Southern (NSC) and Union Pacific (UNP), released third-quarter earnings were, and investors thought enough of them to give the company a bid in the extended session.

According to theflyonthewall, earnings per share of $1.08 beat the market's estimate by four pennies. That $1.08 figure was, as the corporate press release states, 48% higher than the year-ago income level.

Analyst Upgrades

• JPMorgan upgraded AstraZeneca (AZN) to neutral from underweight after the company's U.S. Crestor patent was ruled valid. The firm believes the ruling could lead to AstraZeneca announcing a sizeable share buyback program. AstraZeneca was also upgraded to buy from neutral at BofA/Merrill and to hold from underperform at Jefferies.
• Deutsche Bank upgraded Peabody Energy (BTU) to buy from hold, citing valuation and attractive fundamentals in the coal sector. The firm has a $57.50 price target for shares, and also maintains buy ratings on Arch Coal (ACI) and Alpha Natural (ANR).
• Oppenheimer upgraded NextEra Energy (NEE) to outperform from perform, citing valuation and an improving regulation outlook in Florida. The firm maintains a $55 price target for shares.
• Eaton Vance (EV) was upgraded to buy from neutral at BofA/Merrill.
• Dynamex (DDMX) was upgraded to overweight from equal weight at Stephens.
• Soleil upgraded RPM (RPM) to buy from gradually accumulate.

Typically, the stance would be to take profits after an 70% or so run-up with a stock, but that's not the case with railroad Union Pacific (UNP), first discussed here on March 27, 2009, at a price of $43.

Look for Union's revenue to increase an impressive 8% to 11% in 2010, with a better than 5% volume rise, on rising intermodal, industrial and chemical transportation demand.

The editor of The Moneypaper explains, "The pair developed a Net Current Asset Value (NCAV) model to determine if a company was worth its market price. Their formula subtracts all liabilities, including short-term debt and preferred stock, from a company's current asset balance"

As always, there is a volume of speculation after the much anticipated release of the quarterly changes in holdings report from Berkshire Hathaway (BRK.A). While leaving all the deep analytical number crunching for greater minds than my own, I'd like to take a look at what Warren Buffett could be telling us through his company's latest form 13F.

Why has Warren Buffett swallowed Burlington Northern Santa Fe (BNI) while letting go of Norfolk Southern (NSC) and Union Pacific (UNP)? Being the master of due diligence, Mr. Buffett has most likely determined that BNI is the most attractive of the three. The future of rail transport is all but guaranteed to shine, and I believe that Mr. Buffett has exited the other two rail companies simply to avoid conflict of interest issues.