A great three day rally went from news and excitement to what was really just a dull quiet day for the market as a whole. Earnings and analysts drove some shares but the news of a downed airplane in Libya and more unrest growing in the Middle East region just failed to make markets move so much.

Here were the unofficial closing bell levels:

Dow Jones 12,018.63 -17.90 (-0.15%)
S&P 500 1,293.77 -4.61 (-0.36%)
Nasdaq 2,683.87 -8.22 (-0.31%)

Top Analyst Upgrades & Downgrades

Walgreen (WAG), Dollar General (DG) and Express (EXPR) all reported higher quarterly profits Tuesday morning, with Dollar General and Express both beating Wall Street consensus earnings estimates. With news like this, it may be beneficial for an investor to take a closer look at the retail sector.

Granted, Walgreen did not impress Wall Street, and shares fell more than 7%. Express and Dollar General, however, are reaping the benefits with Express trading up over 5% and Dollar General enjoying a 3% upswing. Both companies opened trading up in the markets Tuesday.

Analyst Upgrades

• Exxon Mobil (XOM) and BB&T (BBT) to outperform from perform at Oppenheimer.
• D.R. Horton (DHI) upgraded to outperform from market perform at Wells Fargo.
• Meritage Homes (MTH), Old Dominion Freight (ODFL) and Heartland Payment (HPY) to outperform from market perform at Wells Fargo.
• Toll Brothers (TOL) to overweight from equal weight at Barclays.
• Hershey (HSY) to buy from neutral at Janney Capital.
• UnitedHealth (UNH), Cigna (CI) and Allscripts (MDRX) to buy from hold at Deutsche Bank.
• Nationwide Health (NHP) to outperform from market perform at JMP Securities.
• Reynolds American (RAI) to buy from neutral at UBS.
• Adtran (ADTN), PG&E (PCG) and Wisconsin Energy (WEC) to overweight from equal weight at Morgan Stanley.

Analyst Upgrades

• Tyco Electronics (TEL) and Weight Watchers (WTW) to buy from neutral, and Smithfield Foods (SFD) to buy from underperform, at BofA/Merrill.
• Red Hat (RHT) to overweight from equal weight at Morgan Stanley.
• Gold Fields (GFI) to overweight from neutral at HSBC.
• Novartis (NVS) to outperform from neutral and GlaxoSmithKline (GSK) to neutral from underperform at Credit Suisse.
• Dollar General (DG) to buy from hold at ThinkEquity.
• Eagle Rock Energy (EROC) to outperform from sector perform at RBC Capital.

Recessions are a good time for discount retailers. Dollar General (DG) is a retailer of low priced goods, which are in demand during this period of high unemployment. Consumers have less to spend and gravitate to stores like Dollar General.

The Wall Street Journal (subscription required) reported that Dollar General's fiscal third-quarter profit rose to $128.1 million or 37 cents a share, up from $75 million or 24 cents a share a year earlier. Sales rose 10% to $3.22 billion and were 4.2% higher on a same-store basis. Compared to prior years, sales were up 13% and 9.2% respectively.

After a week full of mixed economic data taking its toll on the markets, things will settle down somewhat this coming week.

• Monday: Fed releases October data on consumer credit outstanding.
• Tuesday: TIPP Economic Optimism Index is due.
• Wednesday: Labor Dept. offers initial jobless claims numbers for last week, EIA's crude oil inventory last week, October wholesale trade numbers from the Census Bureau.
• Friday: Trade balance data for October, Bureau of Labor Statistics releases its Import Price Index for November, preliminary Michigan Consumer Sentiment Index is due, and the Treasury Dept. releases the federal budget balance in November.

Option traders appear to be setting up for a bullish move on Cogent Inc. (COGT). Traders plowed into 1,571 new call option contracts -- 3.27 times the average volume -- on the stock on Friday. And we know that traders were eager to get into this trade because 99% of the trades came in on the ask price.

Recently, 3M Company (MMM) announced that it was going to acquire Cogent for $10.50 per share. The stock closed Friday at $11.01, up 19.53% during the past month.

Investors nervous about the possibly stalled economic recovery -- or worse, the beginning of the latter phase of a double-dip recession -- were not pleased with last week's housing numbers. Things were perhaps ameliorated somewhat by durable goods order numbers and a revised GDP that weren't as bad as expected, but that didn't stop the Dow from dipping below 10,000 later in the week, before fighting its way back above the benchmark to end the week, thanks largely to Fed chair Bernanke's comments on Friday.

Though the end of August is usually quiet, this week lots more economic data are due out, including more housing numbers: The Case-Shiller Home Price Index for June on Tuesday, construction spending numbers for July on Wednesday, and NAR's pending home sales for July on Thursday. There's not expected to be much to get excited about in these numbers.

Analyst Upgrades

• Wells Fargo upgraded its sector rating on large-cap U.S. banks to market weight from underweight to reflect improving economic data, valuations in the space and reduced concerns of regulatory changes.
• Soleil upgraded Disney (DIS) to buy from hold, citing better ESPN affiliate fee and cruise ship expectations. The firm upped its target price for shares to $42 from $30.
• Baird upgraded Huron (HURN) to outperform from neutral, citing the company's better-than-expected retention efforts of MDs in core segments and continued stabilization in its more cyclical segments. The firm raised its price target to $30 from $27.
• Schlumberger (SLB) was upgraded to strong buy from outperform at Raymond James.
• Dollar General (DG) was upgraded to outperform from market perform at Wells Fargo.
• UDR Inc (UDR) was upgraded to outperform from sector perform at RBC Capital.

Things will be pretty quiet on the earnings front again this week as the quarter winds down. But here's a look at what analysts surveyed by Thomson Reuters are expecting from a few of the stragglers that are scheduled to report results.

In the three months that ended in February, Mosaic Co. (MOS) declared a quarterly dividend and denied that the company was for sale. Analysts expect this potash and phosphate producer to report that fiscal third-quarter earnings surged nearly 80% from the same period of last year to $0.63 per share. Revenue for the period is expected to be 31.6% higher to $1.8 billion. So far, analysts anticipate sequential and year-over-year EPS and revenue growth in the fourth quarter. However, Mosaic's earnings results have fallen short of expectations in three of the past four quarters, by as much as 11 cents per share.

Analyst Upgrades

• Barclays upgraded Schlumberger (SLB) to overweight from equal weight based on its deep management team, financial strength and increased exploration activity. The firm raised its target to $73 from $64.
• ThinkEquity upgraded SanDisk (SNDK) to buy from hold based on expectations for a solid 2010 with better NAND pricing trends, leaner channel inventories and lack of new fabs slated in 2010, among other reasons. The firm has a $35 target on the stock.
• Keefe Bruyette upgraded Pinnacle Financial (PNFP) to outperform from market perform, citing the company's strong management and balance sheet. The firm has a $16.50 price target on the stock.
• Watson Pharma (WPI) was raised to neutral from underperform at BofA/Merrill.
• New York Times (NYT) was upgraded to market perform from underperform at Wells Fargo.
• Tenet Healthcare (THC) was upgraded to outperform from market perform at Leerink.