Last week, under the guise of betting on America, Warren Buffett and his Berkshire Hathaway (BRK.A) made an offer to buy all outstanding shares of Burlington Northern (BNI) for a significant premium.

In making the announcement, Buffett confidently claimed that rail would play a big role in the recovery of the economy. What he did not say was that this was a bet on the U.S. dollar.

The collapse of the domestic housing market crushed businesses that made things that went into the building boom. One of the biggest makers of stuff for homes is Whirlpool (WHR). During the real estate bull market, Whirlpool was firing on all cylinders. But when the market crashed, so did WHR stock.

Since bottoming earlier this year, WHR has made a big recovery. That recovery was based on a recovery in the domestic real estate market. What has yet to be priced into the stock is a boom in overseas shipments.

Here are some highlights from last week's earnings coverage from BloggingStocks:

• AirTran Holdings Inc. (NYSE: AAI) reported its third consecutive quarterly profit and will increase capacity.
• Amazon.com Inc. (NASDAQ: AMZN) shares soared after it reported very strong Q3 numbers.
• Apple Inc. (NASDAQ: AAPL) reported stellar Q4 results, driven by the popularity of Macs and iPhones.
• BlackRock Inc. (NYSE: BLK) Q3 earnings soared, due in part to a tax benefit, and assets managed grew.
• Broadcom Corp. (NASDAQ: BRCM) revenue surged sequentially but note the would be flat going forward.
• Caterpillar Inc. (NYSE: CAT) beat Q3 earnings expectations and shares rose though revenue slumped.

Wall Street watchers can be excused for feeling a little whipsawed this week. After watching stocks lose ground early in the week, they roared back Thursday, riding high on a bevy of upbeat earnings reports. That enthusiasm remains partially on display this morning with two of the three major U.S. stock indexes showing a positive opening ahead of the morning bell.

At about 7 a.m. ET, the Nasdaq Composite Index and S&P 500 were slightly higher, while the Dow Jones industrial average was down by about 4 points. The Dow gained 1.3% Thursday to close the session at 10,081.31, led by the strong earnings reports from five of the benchmark index's 30 component stocks.

I'm Reiterating my Buy rating for Whirlpool (NYSE: WHR), first recommended on April 13, 2009 at a price of $34.47.

If you managed to Buy WHR in April you're up a gargantuan 69%. Whirlpool's shares are a tad overvalued right now, but that does not change the growth story. Emerging market sales, particularly in Latin America, are sending signals of increased demand for appliances; Europe and the U.S. sales may lag for 2-3 more quarters.

The critical and discerning financial institutions know that on Wall Street the mantra is not, 'better late, than never,' but 'if you're late, then never.'

In other words, if you're late to a stock buying opportunity with a company on the rise, you've lost out regarding that opportunity. And with the above in mind, Whirlpool Corporation (NYSE: WHR) is worth a review.

It's about that time again: Pepsi vs. Coke. No, not another taste test or another Battle of the Brands. It's time for the next quarterly results from these two soft drink titans.

Analysts surveyed by Thomson Reuters anticipate that PepsiCo Inc. (NYSE: PEP), global beverage and snack food giant, will report fourth-quarter earnings this week that are 9.1% higher that a year ago, or $0.88 per share. Revenue is expected to total $12.8 billion, which is 3.9% higher than last year. For the full year, the profit is expected to be $3.67 per share on revenue of $43.4 billion, up from $3.38 per share on $39.5 billion in 2007. PepsiCo's earnings met or beat estimates in four of the past five quarters, but missed by only two cents per share in the third quarter. The consensus recommendation of analysts remains to buy PEP. The share price fell to a 52-week low in January and is now 24.4% lower than it was a year ago. During the fourth quarter, PepsiCo declared a $0.42 per share quarterly dividend, agreed to acquire a Spitz International, and announced investments in China and Mexico.

Here are some highlights from this past week's earnings coverage from BloggingStocks:

• Alcatel-Lucent (NYSE: ALU) reported a narrower Q3 net loss and reaffirmed its outlook.
• Barclays (NYSE: BCS) earnings and dividend prospects resulted in an analyst's downgrade.
• Burger King Holdings Inc. (NYSE: BKC) posted its 19th straight quarter of positive growth.
• Choice Hotels International Inc. (NYSE: CHH) better-than-expected Q3 report led to an upgrade.
• Comcast Corp. (NASDAQ: CMCSA) reported strong Q3 numbers and maintained its revenue outlook.
• DreamWorks Animation SKG Inc. (NYSE: DWA) better-than-expected Q3 results driven by Kung Fu Panda.
• Exxon Mobil Corp. (NYSE: XOM) reported another record profit in Q3 driven by record high fuel prices.
• Garmin Ltd. (NASDAQ: GRMN) reported a better-than-expected Q3 profit and offered guidance.
• Hercules Inc. (NYSE: HPC) posted lower Q3 earnings and anounced [regulatory] approval of its buyout.
• Janus Capital Group Inc. (NYSE: JNS) weaker-than-expected results led to an analyst's downgrade.
• Legg Mason Inc. (NYSE: LM) swung to a smaller-than-expected Q2 net loss and shares soared.
• Motorola Inc. (NYSE: MOT) dismal Q3 results managed to beat low earnings expectations.
• Office Depot (NYSE: ODP) Q3 results included lower revenue and a net loss due to economic conditions.
• Qwest Communications International Inc. (NYSE: Q) unimpressive Q3 numbers fell short of estimates.
• Sun Microsystems (NASDAQ: JAVA) swung to a greater-than-expected net loss due in part to competition.
• Texas Roadhouse Inc. (NASDAQ: TXRH) missed Q3 estimates and warned of flat full-year earnings.
• Valero Energy Corp. (NYSE: VLO) strong Q3 results included a gain from a sale of a refinery.
• Visa Inc. (NYSE: V) beat Q4 earnings expectations after adjustment for litigation-related charges.
• Whirlpool Corp. (NYSE: WHR) fell short of revenue estimates and announced job cuts.

Disney (NYSE: DIS) closed at $28.26 Monday. DIS is expected to report Q4 EPS in early November. DIS November option implied volatility of 54 is above it 26-week average of 31 according to Track Data, suggesting larger movement.

Whirlpool (NYSE: WHR) closed at $70.10 Monday. WHR is scheduled to report Q3 EPS in late October. WHR overall option implied volatility of 83 is above its 26-week average of 44 according to Track Data, suggesting larger price movement.

Petrobras (NYSE: PBR) closed at $34.20 Monday. Crude oil futures are recently up 3.89% to $91.23 according to Bloomberg. PBR October option implied volatility is at 167; November is at 127; above its 26-week average of 48 according to Track Data, suggesting larger price movement.

Option Update is provided by Stock Specialist Paul Foster of theflyonthewall.com

CNNMoney reports that General Electric Co. (NYSE: GE) is selling its appliance business. Goldman Sachs Group (NYSE: GS) is running the auction for this maker of refrigerators, microwaves and dishwashers and expects to receive between $5 billion and $8 billion for this $7 billion division of GE's $17.7 billion (2007 revenues) Industrial business unit.

I have been advocating that GE shed its ancillary businesses and this is one that makes sense to sell. I have taught several cases on the appliance industry and one of them highlights the many problems that GE's Appliance business suffered from in the 1990s thanks to the growing bargaining power of mass merchandisers, significant competition from Chinese manufacturers, and some internally inflicted wounds.

If GE Appliances was valued at the same Price/Sales ratio as Whirlpool (NYSE: WHR) -- 0.3 -- it would fetch $3.5 billion. The appliance industry average price/sales ratio is 0.7 -- which would yield GE $4.9 billion. So it looks like GE believes its appliance business is worth well more than the average appliance industry competitor. I applaud the idea of selling GE Appliances but the real gem of GE is its infrastructure business which is capitalizing on the growth of developing countries like China and India.

For the purposes of this examination, let's set aside the fact that you can find reliable clinical research that shows that tobacco smokers cost the insurance industry less over their lifetimes than svelte nonsmokers do. This is simply due to the fact that we tend to die sooner. But that's a matter of insurance industry/government/pharmaceutical hijinx, to possibly discuss another time.

That aside, the item I'm bringing forward today is how the issue of lying smokers should be pursued by Whirlpool Corp.(NYSE: WHR). I'll not take issue against Whirlpool's insurance plan demanding a different level of premium payment from smokers. I'll not take issue against Whirlpool asking smokers to document their participation in the addiction. I'll not take issue against Whirlpool taking action against smokers who lied when claiming that they don't smoke. What I do argue against is the ludicrous notion that Whirlpool employees have turned on one another. It appears that's what the company expects us to believe.

Whirlpool management wants you to believe that they had 39 instances of one employee reporting another for serving their nicotine addiction in violation of what should be a confidential declaration of status. Whirlpool expects you to believe that these company "rats" know which smokers lied on their paper work and which didn't. Whirlpool expects you to believe that all policy violators are of hourly status and that violations by management staff either don't exist or aren't yet worth pursuing. Whirlpool expects us to believe that the company itself wasn't at the root of this all.

MOST NOTEWORTHY: Thornburg Mortgage, Whirlpool and Jackson Hewitt were today's noteworthy downgrades:

• Jefferies downgraded shares of Thornburg Mortgage (NYSE: TMA) to Hold from Buy to reflect the ongoing dislocation of the mortgage markets and lowered their target to $3.75 from $14. While they believe Thornburg will probably survive its current liquidity crisis, they think the company's capital structure will be impaired further.
  
• JP Morgan downgraded Whirlpool (NYSE: WHR) to Underweight from Neutral, citing valuation, higher steel prices, the difficult macro environment and competition.
  
• Stephens cut Jackson Hewitt (NYSE: JTX) to Equal Weight from Overweight to reflect the company's recent results and concerns over the issues that have impacted the basic business.

OTHER DOWNGRADES:

• Merrill lowered Bank of Montreal (NYSE: BMO) to Sell from Neutral.
  
• Lehman downgraded PDL BioPharma (NASDAQ: PDLI) to Equal Weight from Overweight.
  
• Friedman Billings downgraded Tessera (NASDAQ: TSRA) to Market Perform from Outperform.

I'm always troubled when I see financial pundits offering investors "stock tips" that consist of little more than a look at a chart, a summary of analyst opinion, and some ratios pulled off of Yahoo! Finance. None of these really help investors answer the question: "How does this company make money?" The notion that anyone should invest in a stock without being able to answer that question in great detail is not one that I subscribe to.

In recent weeks, 2 of my favorite financial journalists -- MarketWatch's Herb Greenberg and Fortune's Roddy Boyd -- looked at companies where a large chunk of the earnings come from venues very different from what is thought to be the core business.

First, Herb Greenberg wrote about Whirlpool Corporation (NYSE: WHR). You thought they made money selling appliances and such, right? Well there's that but 26% of the company's fourth quarter profits came from Brazilian tax credits. There's nothing inherently wrong with that -- but realize that if you're going to invest in shares of WHR, you need to look at not just the future of the appliance industry but also the future of those tax credits.

General Electric Company (NYSE: GE)'s Industrial segment is worth between $13.1 billion and $16.1 billion down 35.1% at the low end since July when I estimated it was worth $20.2 billion and $21.7 billion.

GE Industrial sells products including consumer appliances, industrial equipment and plastics, and related services. It also provides asset management services for the transportation industry. Industrial revenues were about the same in 2007 compared with 2006 as lower volume ($0.5 billion) was offset by the effects of the weaker U.S. dollar ($0.3 billion) and higher prices ($0.2 billion).

Based on GE Industrial profit of $1.41 billion, here are the range of valuations based on the Price/Earnings ratios of the following peer companies -- which declined substantially since last July:

• Whirlpool Corp. (NYSE: WHR) P/E: 11.4 (July: 16.2): $13.1 billion
• Electrolux AB (ADR) (OTC: ELUXY) P/E: 9.3. (July: 15.2): $16.1 billion

TheStreet.com's Jim Cramer says the poor outlook for this economy has stemmed the flood of takeovers from abroad we'd normally see in this kind of market.

Where are the Europeans? Where are the Asians? Where are the Middle Easterners? Are they all cowed into not buying our companies despite the decline in the dollar?

Consider that there have been only two deals above $10 billion this year: AstraZeneca (NYSE: AZN) (Cramer's Take), which bought Medimmune for $15 billion, and Saudi Basic Industries, which purchased GE Plastics for $12 billion. No one has taken advantage of the astounding decline in the U.S. dollar to buy up enterprises.

Take two that seem absurdly low: Whirlpool (NYSE: WHR) (Cramer's Take) and Black & Decker (NYSE: BDK) (Cramer's Take). Both companies have bought in an immense amount of stock. Both companies now trade at $5 billion in value. Give them a 25% haircut and you can see how much these name-brand companies are marked down.

But nobody cares.