Earnings reports continue to dribble in as the quarter winds down. Much of the attention this week will be on homebuilders KB Home (NYSE: KBH) and Lennar Corp. (NYSE: LEN) as investors look for any sign that the housing sector has bottomed (home sales numbers are also due out this week; see below). Analysts surveyed by Thomson Financial anticipate that both companies will report that they narrowed their losses in the most recent quarter.

KB Home's expected $1.25 per share loss, on revenue of $725.5 million, compares to the previous quarter loss of $3.30 and to a year-ago loss of $6.19. However, KB Home's losses in the past few quarters have been deeper than expected. The Los Angeles-based homebuilder's long-range earnings growth forecast is 10.5%, less than the S&P 500. Analysts continue to recommend holding KB Home, and have for at least 120 days. Shares, however, reached a new 52-week high of $31.69 on Friday, and they are up 10.5% year to date.

Lennar is expected to post a loss of 52 cents per share, on revenue of $1.1 billion. That compares to the previous quarter's per-share loss of 76 cents and to a year-ago loss of $3.25. While Lennar also has tended in the past few quarters to miss expectations, the Miami-based company managed a positive surprise in the first quarter of 2008. Lennar's long-range earnings growth forecast is 10.3%, about the same as KB Home's. Analysts also recommend holding Lennar. Friday, shares of Lennar also reached a 52-week high, $27.75, but they are down 6.4% year to date.

MOST NOTEWORTHY: GlaxoSmithKline plc (NYSE: GSK), Express Scripts, Inc (ESRX), SanDisk Corp (SNDK), Halliburton Co (HAL) and Texas Instruments (TXN) were some of today's noteworthy upgrades.

• Deutsche Bank upgraded GlaxoSmithKline plc (NYSE: GSK) to Buy from Hold.

• Express Scripts Inc (NASDAQ: ESRX) was upgraded to Strong Buy from Buy with a $113 target at First Albany, following the stronger-than-expected first quarter results.

• SanDisk Corp (NASDAQ: SNDK) was upgraded to Buy from Hold at Citigroup.

• Halliburton Co (NASDAQ: HAL) was added to AG Edwards Focus Portfolio. The firm believes Halliburton trades at a great discount to its largest peer, Schlumberger Ltd (SLB), despite an improved earnings outlook and progress on several issues.

• Texas Instruments (NASDAQ: TXN) was upgraded to Buy from Hold at Gabelli to reflect strong first quarter results and valuation. Piper Jaffray upgraded shares of Texas Instruments to Outperform from Market Perform...
  

OTHER UPGRADES:

• Keefe Bruyette upgraded shares of BancFirst Corp (NASDAQ: BANF) to Market Perform from Underperform following its first quarter report.

• Raymond James raised Cardinal Health, Inc (NYSE: CAH) to Outperform from Market Perform.

• Matrix USA raised H.B. Fuller Co (NYSE: FUL) to Hold from Sell based on the company's sales growth.

• Baird raised Snap-on Inc (NYSE: SNA) rating to Outperform from Neutral with a $55 target.

• Bear Stearns upgraded shares of Cummins Inc (NYSE: CMI) to Peer Perform from Underperform.

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

MOST NOTEWORTHY: RadioShack Corp (RSH), Juniper Networks, Inc (JNPR), H.B. Fuller Co (FUL) and Sepracor Inc (SEPR) were today's more notable downgrades:

• Morgan Stanley downgraded RadioShack (NYSE: RSH) to Underweight from Equal-Weight on concerns over the company's wireless fundamentals and top-line growth.

• Juniper Networks (NASDAQ: JNPR) was downgraded to Strong Sell from Buy at Matrix USA. The firm sees downside to the intrinsic value calculation of $12 given the company's deteriorating fundamentals.

• H.B. Fuller Co (NYSE: FUL) was cut to Sell from Hold at Gabelli following a meeting with management to reflect the recent management exists and the broker's expectation for a challenging first-half of 2007.

• Sepracor (NASDAQ: SEPR) was cut to Underperform from Market Perform at Friedman Billings, as the firm believes generic availability of Ambien may be a bigger challenge to Seprecor's Lunesta than investors expect.

OTHER DOWNGRADES:

• Jackson Hewitt Tax Service Inc (NYSE: JTX) was cut to Underweight from Market Weight at Thomas Wiesel as they believe the potential near-term competitive trends coupled with potential issues with rising financial product contribution will weigh on valuation.

• Bear Stearns cut Cerner Corp (NASDAQ: CERN) to Peer Perform from Outperform.

• Matrix USA downgraded InfoSpace, Inc (NASDAQ: INSP) to Hold from Buy on valuation.

• Prudential cut Unilever plc (NYSE: UL) to Neutral from Overweight.

• Breen Murray downgraded Century Casinos, Inc (NASDAQ: CNTY) to Hold from Buy.

• Cowen downgraded PeopleSupport, Inc (NASDAQ: PSPT) to Neutral from Outperform based on near-term visibility concerns.

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