MOST NOTEWORTHY: BP, LMI Aerospace and Smith & Nephew were among today's noteworthy upgrades:

• Credit Suisse upgraded BP (NYSE: BP) following the company's strong Q1 report.
  
• Wachovia upgraded LMI Aerospace (NASDAQ: LMIA) based on valuation and potential catalysts that include a production rate hike decision on the Boeing 737, an option on the 767 wing modification program, and Q1 earnings.
  
• Wachovia upgraded Smith & Nephew (NYSE: SNN) based on growth opportunities, strong reconstruction product cycle, and potential share gains, among other reasons.

OTHER UPGRADES:

• UBS upgraded James River Coal Co. (NASDAQ: JRCC) based on higher long-term coal prices.
  
• Merriman upgraded Denny's Corp. (NASDAQ: DENN) because they believe that franchise growth initiative will reinvigorate the franchisees and put the company in a better position to beat estimates over the next year. The firm thinks investors need to refocus on the company's core operating profitability.

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

• Applied Materials Inc. (NASDAQ: AMAT) first-quarter profits fell due to market conditions.
• Best Buy Inc. (NYSE: BBY) lowered its earnings forecast on declining sales.
• Campbell Soup Co. (NYSE: CPB) posted unexciting second-quarter results, but shares rose anyway.
• Chipotle Mexican Grill Inc. (NYSE: CMG) posted solid results but fell short of expecations.
• Comcast Corp. (NASDAQ: CMCSA) beat expectations and annouced it first dividend in a decade.
• Denny's Corp. (NASDAQ: DENN) fourth-quarter results were dragged down by the sale of restaurants.
• General Motors Corp. (NYSE: GM) posted a record loss and made a buyout offer to union employees.
• Hasbro Inc. (NYSE: HAS) post better-than-expected fourth-quarter results on popularity of the Transformers.
• Jones Apparel Group Inc. (NYSE: JNY) narrowed its loss in the fourth quarter as restructuring continued.
• Lions Gate Entertainment Corp. (NYSE: LGF) missed earnings estimates despite strong revenue growth.
• Marriott International Inc. (NYSE: MAR) profit fell on losses from discontinued operations.
• Molson Coors Brewing Co. (NYSE: TAP) beat estimates as profits rose 75%.
• PolyOne Corp. (NYSE: POL) beat expectations and raised its guidance.
• Schering-Plough Corp. (NYSE: SGP) beat expectations, excluding a charge for acquistion costs.
• UBS (NYSE: UBS) posted a big loss on write-downs due to the subprime crisis.
• VNUS Medical Technologies Inc. (NASDAQ: VNUS) beat expectations on strength overseas.
• World Wrestling Entertainment (NYSE: WWE) beat expectations despite weakness in its movie business.

Also, Jim Cramer defends his interest in GM after its record loss.

Upcoming results to watch for include Wal-Mart (NYSE: WMT), Hewlett-Packard (NYSE: HPQ), OfficeMax (NYSE: OMX), Whole Foods (NASDAQ: WFMI), MGM Mirage (NYSE: MGM), JCPenney (NYSE: JCP), and Safeway (NYSE: SWY).

Visit AOL Money & Finance for more earnings coverage.

On Wednesday, both Denny's Corp. (NASDAQ: DENN) and Waste Management Inc. (NYSE: WMI) reported a rise in fourth-quarter profits.

But excluding restructuring charges, asset sale gains, and other one-time items, restaurant operator Denny's net income was $3.4 million, or 3 cents per share, down from $7.3 million in the same quarter a year-ago. Revenue fell 10% to $220.3 million from $244.4 million last year. Analysts polled by Thomson Financial had expected a profit of 4 cents per share on revenue of $216.4 million.

For the year, net income rose 14% to $34.7 million, or 35 cents per share, from $30.3 million, or 31 cents per share in 2006. Revenue fell 6% to $939.4 million from $994 million.

The company also said it expects revenue to fall in 2008 as it continues to sell restaurants to franchisees.

After falling in early trading Wednesday, shares closed up 15 cents, or more than 4%, to $3.58.

On today's STOP TRADING! segment on CNBC, Cramer noted potential takeover and rumor names.

He says to Buy Reliance Steel and Aluminum (NYSE:RS) after it went up today from US Steel Corp. (NYSE: X) acquiring Lone Star Technologies (NYSE: LSS).

GlobalSantaFe Corp. (NYSE: GSF) is one that may be acquired by Seadrill. Cramer thinks it is willing to be consolidated. He thinks this one is cheap.

Cramer noted on Tata Motors (NYSE: TTM) the Indian car maker on the downgrade today, Cramer doesn't care if Morgan Stanley cut it. He thinks it is a secular growth story.

RadioShack (NYSE: RSH) was also noted positively for its CEO.

On Denny's Corp. (NYSE: DENN), he still thinks it is going up after a value manager noted it earlier today.

Now that New York-based hedge fund Third Point has raised its stake in IHOP Corp. (NYSE:IHP), the company may begin to feel the heat if its performance does not improve.

IHP's stock has languished in the $49-$55 range for about a year, the byproduct of lackluster 6-month 2006 sales, which were roughly flat compared to the same period in 2005. Moreover, IHP posted a 3% decline in sales in 2005, to $348 million from $359 million in 2004.

In an SEC filing, Third Point reported that it had raised its stake in IHP to 1.25 million shares, or about 7% of IHP's 17.8 million outstanding shares. One hedge fund institution upside: a potential extra source of buyers for your stock. One downside: a pointed, sophisticated, and resource-rich critic of management if your company does not meet the hedge fund's expectations.

MOST NOTEWORTHY: Career Education Corp (CECO) and Expedia Inc (EXPE) were today's most notable downgrades:

• Prudential downgraded Career Education Corp (NASDAQ: CECO) to Underweight from Neutral with a $20 target based fourth quarter results and guidance.

• Expedia inc (NASDAQ: EXPE) was downgraded to Sector Performer from Sector Outperformer based on a deteriorating outlook and valuation following the weak fourth quarter.

OTHER DOWNGRADES:

• Various retail dining companies were downgraded today:
  
• Denny's Corp (NASDAQ: DENN) was reduced to Neutral from Buy at Merriman, citing weak traffic trends and the net unit growth delay into 2008.
• UBS downgraded Applebee's Int'l Inc (NASDAQ: APPB) to Neutral from Buy as they believe sales and traffic declines are likely to continue until easier comps in the second quarter.
  
• BB&T downgraded California Pizza Kitchen Inc (NASDAQ: CPKI) to Hold from Buy on valuation and concerns about earnings visibility.
  

• Constellation Brands Inc (NYSE: STZ) was cut to Neutral from Buy at Goldman Sachs on concerns around upcoming guidance and their belief that a recovery in the U.K. and Australia is at least a year away.
  

• Goldman downgraded WellCare Health Plans Inc (NYSE: WCG) to Sell from Neutral.
  

• Citigroup downgraded Petrobras Energia Participaciones ADS (NYSE: PZE) and Consolidated Communications Holdings Inc (NASDAQ: CNSL) to Sell from Hold.
  

• WedBush downgraded Take-Two Interactive Software (NASDAQ: TTWO) to Sell from Hold with a $15 target to reflect less optimism about the company's sport franchise and risk from the NY AG investigation.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Adobe Systems Inc (ADBE), CA Inc (CA) and DSW Inc (DSW) were today's most notable initiations:

• Adobe Systems Inc (NASDAQ: ADBE) was initiated with an Outperform rating and $47 target at Credit Suisse. The firm said Adobe is one of the best-positioned large-cap software companies given its leading position in digital media and growing presence in enterprise mobile and Web 2.0 markets.

• CA Inc (NYSE: CA) was initiated with a Hold rating and $27 target at Jefferies. While CA is being looked at by private-equity players, Jefferies believes shares are richly valued.

• DSW Inc (NYSE: DSW) was initiated with a Sell rating and $30 target at Wedbush, as they believe the consensus' 3-5 year annual EPS growth rate of 20% to be too high.

OTHER INITIATIONS:

• Credit Suisse started Southern Union Co (NYSE: SUG) with an Outperform rating and $33 target.

• Needham assumed coverage of Ikanos Communications Inc (NASDAQ: IKAN) with a Hold rating, as the firm believes a rebound of VDSL spending is unlikely until the second-half of 2007.

• Morgan Joseph is positive on Denny's Corp (NASDAQ: DENN) improving operations and started the food retailer with a Buy rating and $7 target.

• Jefferies started HMS Holdings Corp (NASDAQ: HMSY) with a Buy rating and $25 target. The firm believes HMS Holdings is positioned to serve the needs of government healthcare programs.

• Credit Suisse initiated WebEx Communications Inc (NASDAQ: WEBX) with a Neutral rating at $50 target based on valuation.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Wrigley, Wm Jr. and Denny's were the most notable initiations today.

• Wrigley, Wm Jr. (NYSE: WWY) was started at Bear Stearns with an Underperform rating, citing valuation.

• Denny's Corp (NASDAQ: DENN) was initiated with a Buy rating at Wedbush; the firm sees significant earnings growth potential from the company's store re-franchising.

OTHER INITIATIONS:

• ThinkEquity initiated Lightbridge Inc (NASDAQ: LTBG) with a Buy rating and $18 target. The firm says Lightbridge's business and investor focus will be enhanced when the company exits the TDS segment by mid-2007. The broker expects shares to then be driven by Authorize.net, a pure-play payment processor.

• CIBC initiated Knot Inc (NASDAQ: KNOT) with a Sector Performer rating and $32 target. The firm expects pricing growth over the next few years to drive 20% ad revenue growth and for margins to be driven by business mix, synergies from the Wedding Channel acquisition, and cost structure.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

On tonight's MAD MONEY on CNBC, Jim Cramer discussed Denny's Corporation (NASDAQ:DENN) as a Buy. He said it is a name you want to own. He said the company has made a turn, and please note he said this earlier last week or the week before when he said it was going to $6.00. This stock closed as $4.58 today, and was up at $4.71 (almost 3%) after he began touting the stock. Cramer, a bit stridently, said that when he brings on CEO "you need to listen" -- in this case, the CEO was on back on the 15th and replayed it: "in the midst of refinancing debt and should get it resolved this quarter...."

Cramer said they had been selling stores to pay debt but now they don't need to sell off the other 21 stores because they are operating better. Cramer again said he thinks it is going to $6.00. The street hasn't caught on the refinancing angle, and the company is changing its model to focus more on franchises, and less on company-owned stores.

[Photo Shibainu]