BOSTON ( TheStreet) -- U.S. stocks slid last month, with the S&P 500 falling 4.7% as investors loaded up on fixed-income securities. Here are 10 stocks struggling despite exceptionally cheap price-to-earnings ratios. When stocks rebound, these stocks may fare best. The companies are ordered by forward earnings multiple, from cheap to cheapest.

10. Humana ( HUM) offers health and supplemental benefit plans. Second-quarter profit increased 21% to $340 million, or $2 a share, as revenue grew 9.5% to $8.7 billion. The operating margin rose from 5.9% to 8.2%. Humana has $8.9 billion of cash and $1.7 billion of debt, equal to a quick ratio of 1.7 and a debt-to-equity ratio of 0.3. During the past three years, Humana has grown revenue 11% annually, on average, and boosted profit 24% a year.

Its stock trades at a trailing earnings multiple of 7.1, a forward earnings multiple of 8.6, a book value multiple of 1.3, a sales multiple of 0.3 and a cash flow multiple of 3.6 -- 51%, 31%, 48%, 60% and 59% discounts to peer averages. Of analysts covering Humana, 9, or 43%, advise purchasing its shares, 11 recommend holding and one suggests selling them. A median price target of $55.73 suggests a return of 16%.

9. Goldman Sachs ( GS) is a global full-service investment bank. Second-quarter profit tumbled 82% to $613 million, or 78 cents a share, as revenue decreased 31% to $10 billion. The operating margin narrowed from 42% to 40%. Goldman Sachs has $258 billion of cash and $540 billion of debt, equal to an elevated debt-to-equity ratio of 7.3. Since 2007, Goldman has increased net income 5.9% a year, though earnings per share fell 2.6% a year.

Its stock sells for a trailing earnings multiple of 7.2, a forward earnings multiple of 7.7, a book value multiple of 1, a sales multiple of 1.5 and a cash flow multiple of 2.1 -- 46%, 45%, 35%, 31% and 85% discounts to capital markets industry averages. Of researchers following Goldman, 24, or 86%, rate its stock "buy" and four rate it "hold." None rank it "sell." A median target of $189.79 implies 39% of upside. Deutsche Bank ( DB) offers a price target of $205.

8. SLM Corp. ( SLM) provides education finance in the U.S. SLM swung to a second-quarter profit of $338 million, or 63 cents a share, from a loss of $123 million, or 31 cents, a year earlier. Revenue gained 13%. The operating margin narrowed from 61% to 57%. SLM Corp. holds $13 billion of cash and $199 billion of debt, equal to an excessive debt-to-equity ratio of 39. During the past three years, SLM's net income has dropped 8.5% a year, on average.

Its stock trades at a trailing earnings ratio of 5.4, a forward earnings multiple of 7.7, a book value multiple of 1.1 and a sales multiple of 0.8 -- 58%, 37%, 51% and 43% discounts to consumer finance industry averages. Of analysts evaluating SLM Corp., six, or 60%, rate its stock "buy" and four rate it "hold." None rank it "sell." A median target of $15.50 suggests a potential return of 40%. FBR ( FBCM) offers a price target of $19, implying 71% of upside.

7. Coventry Health Care ( CVH) is a managed-health-care company. Its second-quarter profit plummeted 95% to $1 million, or 1 cent per share, as revenue fell 18% to $2.9 billion. The operating margin extended from 2.9% to 9.9%. Coventry has $1.5 billion of cash and $1.6 billion of debt, converting to a quick ratio of 1 and a debt-to-equity ratio of 0.4. Since 2007, Coventry has grown sales 14% annually, on average, as net profit dropped 22% a year.

Its stock sells for a trailing earnings multiple of 9.5, a forward earnings multiple of 7.7, a book value multiple of 0.8, a sales multiple of 0.2 and a cash flow multiple of 8.6 -- 35%, 38%, 68%, 63% and 2% discounts to health care peer averages. Of researchers covering Coventry, six, or 32%, advocate purchasing its shares and 13 recommend holding them. A median price target of $25.64 suggests a return of 31%. BMO ( BMO) offers a price target of $33.

6. Ace ( ACE) provides a range of insurance and reinsurance products. Second-quarter profit expanded 27% to $677 million, or $1.98 a share, as revenue increased 6% to $3.8 billion. The operating margin widened from 19% to 23%. Ace has $5 billion of cash and $3.6 billion of debt, equal to a debt-to-equity ratio of 0.2. Since 2007, Ace has grown sales 4.1% a year, on average, increased net income 3.6% a year and boosted earnings per share 3% a year.

Its stock trades at a trailing earnings multiple of 6.3, a forward earnings multiple of 7.3, a book value multiple of 0.9, a sales multiple of 1.2 and a cash flow multiple of 4.9 -- 58%, 27%, 80%, 76% and 44% discounts to insurance industry averages. Of analysts covering Ace, 21, or 88%, rate its stock "buy" and three rate it "hold." None rank it "sell." A median target of $65.98 implies 24% of upside. JPMorgan ( JPM) forecasts that the stock will rise 37% to $73.

5. Ford ( F) designs and manufactures cars and trucks. Ford's second-quarter net income increased 15% to $2.6 billion, but earnings per share fell 12% to 61 cents, hurt by a higher share count. Revenue gained 31% to $35 billion. The operating margin turned positive. The balance sheet stores $31 billion of cash and $117 billion of debt. Ford is running a shareholders' deficit, but it has decreased 67% since the year-earlier quarter to $3.6 billion.

Its stock sells for a trailing earnings multiple of 6.8, a forward earnings multiple of 5.8, a sales multiple of 0.3 and a cash flow multiple of 3.1 -- 63%, 76%, 42% and 10% discounts to auto peer averages. Of researchers following Ford, nine, or 56%, rate its stock "buy", six rate it "hold" and one ranks it "sell." A median target of $15.90 suggests a return of 42%. UBS ( UBS) predicts the stock will advance 51% to $17.

4. SuperValu ( SVU) operates retail food stores in the U.S. under a variety of names, including Shaw's. The company's fiscal first-quarter profit tumbled 41% to $67 million, or 31 cents a share, as revenue declined 9% to $12 billion. The operating margin tightened from 2.9% to 2.8%. SuperValu holds $198 million of cash and $7.4 billion of debt, equal to a low quick ratio of 0.2 and a high debt-to-equity ratio of 2.5. SuperValu's sales have fallen 4.2% a year since 2007.

SuperValu's stock trades at a trailing earnings multiple of 6.2, a forward earnings multiple of 5.6, a book value multiple of 0.7, a sales multiple of 0.1 and a cash flow multiple of 1.6 -- 93%, 58%, 71%, 88% and 80% discounts to food and staples retailing industry averages. Of analysts covering SuperValu, one, or 7%, advises purchasing its shares, 12 recommend holding and two suggest selling them. A median target of $12.23 suggests a potential return of 26%.

3. Gannett ( GCI) owns numerous regional and national newspapers, including USA Today, and online news sites. Second-quarter profit more than doubled to $195 million, or 73 cents a share, as revenue declined 1.6% to $1.4 billion. The operating margin rose from 15% to 20%. Gannett has $157 million of cash and $2.6 billion of debt, converting to a quick ratio of 1 and a debt-to-equity ratio of 1.4.

Its stock sells for a trailing earnings multiple of 5.8, a forward earnings multiple of 5.1, a book value multiple of 1.5, a sales multiple of 0.5 and a cash flow multiple of 3.2 -- 71%, 79%, 54%, 76% and 77% discounts to media peer averages. Of researchers following Gannett, six, or 86%, rate its stock "buy" and one rates it "hold." None rank it "sell." A median target of $21 implies 74% of upside. Evercore ( EVR) forecasts that the stock will rise 49% to $18.

2. Western Digital ( WDC) designs and sells hard-drives. Fiscal fourth-quarter profit increased 35% to $264 million, or $1.13 a share, as revenue gained 23% to $2.4 billion. The operating margin extended from 9.6% to 13%. Western Digital has $2.7 billion of cash and $400 million of debt, translating to a quick ratio of 2 and a debt-to-equity ratio of 0.1. Since 2007, Western Digital has grown sales 23% annually, on average, and boosted net income 35% a year.

Its stock trades at a trailing earnings multiple of 4, a forward earnings multiple of 5.1, a book value multiple of 1.2, a sales multiple of 0.6 and a cash flow multiple of 2.8, 77%, 66%, 70%, 79% and 76% discounts to computers and peripherals industry averages. Of analysts covering Western Digital, 13, or 52%, rate its stock "buy", nine rate it "hold" and three rank it "sell." A median target of $36.21 implies 50% of upside.

1. Micron Technology ( MU) designs and makes semiconductors. The company swung to a fiscal third-quarter profit of $939 million, or 92 cents a share, from a loss of $301 million, or 37 cents, a year earlier. Revenue more than doubled. The operating margin turned positive. Micron holds $2.3 billion of cash and $2.6 billion of debt, equal to a quick ratio of 1.5 and a debt-to-equity ratio of 0.3. Since 2007, Micron has expanded net income 154% a year.

Micron's stock sells for a trailing earnings multiple of 4.7, a forward earnings multiple of 3.7, a book value multiple of 0.9, a sales multiple of 0.9 and a cash flow multiple of 2.8 -- 75%, 68%, 83%, 69% and 79% discounts to semiconductor industry averages. Of researchers following Micron, 17, or 74%, advocate purchasing Micron's shares, five recommend holding and one says to sell them. A median target of $14.06 suggests a potential return of 118%.

-- Written by Jake Lynch in Boston.

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