NEW YORK (

TheStreet

) -- The

S&P 500

fell Monday, led lower by food products company

Sysco

(SYY) - Get Report

and health insurer

Humana

(HUM) - Get Report

.

The S&P 500 was down 2.01 points midday Monday to 1,342.89.

Sysco shares fell 5.21% to $29.29. The company reported second-quarter earnings of $250 million, or 43 cents a share; analysts expected 44 cents a share.

Sales for the first half of the company's fiscal 2012 were $20.8 billion, up 8.9% from the prior year.

Sysco has an estimated price-to-earnings ratio for next year of 13.75. The average among food retailers and wholesalers is 15.91.

Kroger

(KR) - Get Report

and

Supervalu

(SVU)

have forward P/Es of 10.84 and 5.7, respectively.

Ten of the 14 analysts who cover the company rated it a hold. Two considered it a buy and another two rated it a sell.

TheStreet Ratings

gives Sysco an A- grade with a

$35.38

price target. The stock has fallen marginally year to date.

Shares of Humana dropped 5.33% to $85.32 on Monday.

Humana reported fourth-quarter earnings of $199 million, or $1.20 a share, up from year-earlier earnings of $107 million, or 63 cents. Fourth-quarter revenue increased 9% to $9.06 billion.

Humana raised its 2012 earnings per share guidance to between $7.50 and $7.70, but the estimate fell short of analysts' expectations of $7.99.

Humana has a forward P/E of 9.45. The average among the health care providers if 20.90.

WellPoint

(WLP)

,

Aetna

(AET)

and

Cigna

(CI) - Get Report

each have low forward P/Es as well at 7.58, 7.76 and 7.04, respectively.

Of the 22 analysts who cover Humana, 14 rate it a buy; eight call it a hold.

TheStreet Ratings

gives Humana an A+ grade with

a $118.49

price target. The stock has fallen 2.68% year to date.

Shares of forest products company

Weyerhaeuser

(WY) - Get Report

fell 3.1% to $20.64.

The company was downgraded by UBS analysts to a

sell from a hold

.

Weyerhaueser has a forward P/E of 28.21. The average among specialty real estate investment trusts is 36.52.

HCP

(HCP) - Get Report

and

Rayonier

(RYN) - Get Report

have forward P/Es of 21.83 and 18.34, respectively.

Of the 15 analysts who cover the company, eight rated it a hold. Three consider it a buy and four rated it a sell.

Weyerhaeuser gets a

C- grade

from

TheStreet Ratings

. The stock fell 2.91% Monday to $20.68. It has risen 10.55% year to date.

-- Written by Alexandra Zendrian

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Alexandra Zendrian

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.