Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer

TheStreet Ratings' stock model projects a stock's total return potential over a 12-month period including both price appreciation and dividends. Our Buy, Hold or Sell ratings designate how we expect these stocks to perform against a general benchmark of the equities market and interest rates.

While plenty of high-yield opportunities exist, investors must always consider the safety of their dividend and the total return potential of their investment. It is not uncommon for a struggling company to suspend high-yielding dividends which could subsequently result in precipitous share price declines.

TheStreet Ratings' stock rating model views dividends favorably, but not so much that other factors are disregarded. Our model gauges the relationship between risk and reward in several ways, including: the pricing drawdown as compared to potential profit volatility, i.e. how much one is willing to risk in order to earn profits?; the level of acceptable volatility for highly performing stocks; the current valuation as compared to projected earnings growth; and the financial strength of the underlying company as compared to its stock's valuation as compared to its stock's performance.

These and many more derived observations are then combined, ranked, weighted, and scenario-tested to create a more complete analysis. The result is a systematic and disciplined method of selecting stocks. As always, stock ratings should not be treated as gospel — rather, use them as a starting point for your own research.

The following pages contain our analysis of 3 stocks with substantial yields, that ultimately, we have rated "Sell."

Concurrent Computer

Dividend Yield: 7.50%

Concurrent Computer (NASDAQ: CCUR) shares currently have a dividend yield of 7.50%.

Concurrent Computer Corporation provides software, hardware, and professional services for the multi-screen video and real-time markets in North America, the Asia Pacific, Europe, and South America. It operates through two segments, Products and Services. The company has a P/E ratio of 3.56.

The average volume for Concurrent Computer has been 19,200 shares per day over the past 30 days. Concurrent Computer has a market cap of $60.1 million and is part of the computer hardware industry. Shares are down 9.4% year-to-date as of the close of trading on Friday.

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TheStreet Ratings rates Concurrent Computer as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income and generally disappointing historical performance in the stock itself.

Highlights from the ratings report include:
  • The company, on the basis of change in net income from the same quarter one year ago, has underperformed when compared to that of the S&P 500 and greatly underperformed compared to the Computers & Peripherals industry average. The net income has significantly decreased by 27.5% when compared to the same quarter one year ago, falling from $1.08 million to $0.78 million.
  • Reflecting the weaknesses we have cited, including the decline in the company's earnings per share, CCUR has underperformed the S&P 500 Index, declining 12.98% from its price level of one year ago. Turning toward the future, the fact that the stock has come down in price over the past year should not necessarily be interpreted as a negative; it could be one of the factors that may help make the stock attractive down the road. Right now, however, we believe that it is too soon to buy.
  • CONCURRENT COMPUTER CP's earnings per share declined by 25.0% in the most recent quarter compared to the same quarter a year ago. This company has not demonstrated a clear trend in earnings over the past 2 years, making it difficult to accurately predict earnings for the coming year. During the past fiscal year, CONCURRENT COMPUTER CP increased its bottom line by earning $2.04 versus $0.49 in the prior year.
  • The revenue fell significantly faster than the industry average of 32.7%. Since the same quarter one year prior, revenues slightly dropped by 6.4%. The declining revenue appears to have seeped down to the company's bottom line, decreasing earnings per share.
  • The gross profit margin for CONCURRENT COMPUTER CP is rather high; currently it is at 61.62%. It has increased from the same quarter the previous year. Despite the strong results of the gross profit margin, CCUR's net profit margin of 4.58% significantly trails the industry average.

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Seadrill Partners

Dividend Yield: 18.60%

Seadrill Partners (NYSE: SDLP) shares currently have a dividend yield of 18.60%.

Seadrill Partners LLC owns, operates, and acquires offshore drilling units. The company primarily serves various oil and gas companies. As of March 31, 2015, its fleet consisted of four semi-submersible drilling rigs, three drillships, and three tender rigs. The company has a P/E ratio of 5.67.

The average volume for Seadrill Partners has been 342,700 shares per day over the past 30 days. Seadrill Partners has a market cap of $917.6 million and is part of the energy industry. Shares are down 24.8% year-to-date as of the close of trading on Friday.

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TheStreet Ratings rates Seadrill Partners as a sell. The company's weaknesses can be seen in multiple areas, such as its generally high debt management risk, disappointing return on equity and generally disappointing historical performance in the stock itself.

Highlights from the ratings report include:
  • The debt-to-equity ratio is very high at 3.97 and currently higher than the industry average, implying increased risk associated with the management of debt levels within the company. Along with the unfavorable debt-to-equity ratio, SDLP maintains a poor quick ratio of 0.96, which illustrates the inability to avoid short-term cash problems.
  • The company's current return on equity has slightly decreased from the same quarter one year prior. This implies a minor weakness in the organization. Compared to other companies in the Energy Equipment & Services industry and the overall market on the basis of return on equity, SEADRILL PARTNERS LLC has underperformed in comparison with the industry average, but has exceeded that of the S&P 500.
  • SDLP's stock share price has done very poorly compared to where it was a year ago: Despite any rallies, the net result is that it is down by 62.52%, which is also worse that the performance of the S&P 500 Index. Investors have so far failed to pay much attention to the earnings improvements the company has managed to achieve over the last quarter. Naturally, the overall market trend is bound to be a significant factor. However, in one sense, the stock's sharp decline last year is a positive for future investors, making it cheaper (in proportion to its earnings over the past year) than most other stocks in its industry. But due to other concerns, we feel the stock is still not a good buy right now.
  • SEADRILL PARTNERS LLC has improved earnings per share by 35.5% in the most recent quarter compared to the same quarter a year ago. This company has reported somewhat volatile earnings recently. But, we feel it is poised for EPS growth in the coming year. During the past fiscal year, SEADRILL PARTNERS LLC reported lower earnings of $1.72 versus $1.86 in the prior year. This year, the market expects an improvement in earnings ($2.87 versus $1.72).
  • The net income growth from the same quarter one year ago has significantly exceeded that of the S&P 500 and the Energy Equipment & Services industry. The net income increased by 92.9% when compared to the same quarter one year prior, rising from $19.80 million to $38.20 million.

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EV Energy Partners

Dividend Yield: 18.20%

EV Energy Partners (NASDAQ: EVEP) shares currently have a dividend yield of 18.20%.

EV Energy Partners, L.P. engages in the acquisition, development, and production of oil and natural gas properties in the United States. The company operates in two segments, Exploration and Production, and Midstream. The company has a P/E ratio of 7.86.

The average volume for EV Energy Partners has been 372,300 shares per day over the past 30 days. EV Energy Partners has a market cap of $537.6 million and is part of the energy industry. Shares are down 46.6% year-to-date as of the close of trading on Friday.

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TheStreet Ratings rates EV Energy Partners as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income, generally high debt management risk, generally disappointing historical performance in the stock itself and feeble growth in its earnings per share.

Highlights from the ratings report include:
  • The company, on the basis of change in net income from the same quarter one year ago, has significantly underperformed when compared to that of the S&P 500 and the Oil, Gas & Consumable Fuels industry. The net income has significantly decreased by 886.2% when compared to the same quarter one year ago, falling from -$6.25 million to -$61.67 million.
  • The debt-to-equity ratio of 1.06 is relatively high when compared with the industry average, suggesting a need for better debt level management. Along with the unfavorable debt-to-equity ratio, EVEP maintains a poor quick ratio of 0.77, which illustrates the inability to avoid short-term cash problems.
  • Despite any intermediate fluctuations, we have only bad news to report on this stock's performance over the last year: it has tumbled by 71.21%, worse than the S&P 500's performance. Consistent with the plunge in the stock price, the company's earnings per share are down 694.11% compared to the year-earlier quarter. Naturally, the overall market trend is bound to be a significant factor. However, in one sense, the stock's sharp decline last year is a positive for future investors, making it cheaper (in proportion to its earnings over the past year) than most other stocks in its industry. But due to other concerns, we feel the stock is still not a good buy right now.
  • EV ENERGY PARTNERS LP has experienced a steep decline in earnings per share in the most recent quarter in comparison to its performance from the same quarter a year ago. This company has reported somewhat volatile earnings recently. We feel it is likely to report a decline in earnings in the coming year. During the past fiscal year, EV ENERGY PARTNERS LP turned its bottom line around by earning $2.52 versus -$1.69 in the prior year. For the next year, the market is expecting a contraction of 119.0% in earnings (-$0.48 versus $2.52).
  • The company's current return on equity greatly increased when compared to its ROE from the same quarter one year prior. This is a signal of significant strength within the corporation. In comparison to the other companies in the Oil, Gas & Consumable Fuels industry and the overall market, EV ENERGY PARTNERS LP's return on equity is significantly below that of the industry average and is below that of the S&P 500.

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