NEW YORK (TheStreet) -- Technology stocks were not immune to August's market selloff. The worst performers of the third quarter included many semiconductor stocks. 

As a result of the choppy markets, the S&P 500 Information Technology Index fell 4.1% for the three-month period, ending Sept. 30. While the tech sector did better than the broader S&P 500, down 6.9% -- its worst quarterly performance in four years -- these 10 worst-performing tech stocks clearly underperformed. 

Here's the list, paired with TheStreet Ratings to let you know if you should still buy or sell these stocks as we head into the final quarter of the year. And when you're done be sure to check out the worst-performing stocksin the S&P 500 for the third quarter. 

TheStreet Ratings uses a quantitative approach to rating over 4,300 stocks to predict return potential for the next year. The model is both objective, using elements such as volatility of past operating revenues, financial strength, and company cash flows, and subjective, including expected equities market returns, future interest rates, implied industry outlook and forecasted company earnings.

Buying an S&P 500 stock that TheStreet Ratings rated a "buy" yielded a 16.56% return in 2014 beating the S&P 500 Total Return Index by 304 basis points. Buying a Russell 2000 stock that TheStreet Ratings rated a "buy" yielded a 9.5% return in 2014, beating the Russell 2000 index, including dividends reinvested, by 460 basis points last year.

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QCOM

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10. Qualcomm Inc.  (QCOM) - Get Report
Industry: Technology/ Communications Equipment
Market Cap: $82.5 billion
Year-to-date return: -14.2%

TheStreet Said: TheStreet Ratings team rates QUALCOMM INC as a Hold with a ratings score of C+. TheStreet Ratings Team has this to say about their recommendation:

We rate QUALCOMM INC (QCOM) a HOLD. The primary factors that have impacted our rating are mixed ? some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, expanding profit margins and notable return on equity. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, weak operating cash flow and a generally disappointing performance in the stock itself.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The current debt-to-equity ratio, 0.33, is low and is below the industry average, implying that there has been successful management of debt levels. Along with this, the company maintains a quick ratio of 3.83, which clearly demonstrates the ability to cover short-term cash needs.
  • QUALCOMM INC's earnings per share declined by 44.3% 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, QUALCOMM INC increased its bottom line by earning $4.40 versus $3.91 in the prior year. This year, the market expects an improvement in earnings ($4.61 versus $4.40).
  • The gross profit margin for QUALCOMM INC is rather high; currently it is at 63.08%. Regardless of QCOM's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, QCOM's net profit margin of 20.30% compares favorably to the industry average.
  • The company, on the basis of change in net income from the same quarter one year ago, has significantly underperformed against the S&P 500 and did not exceed that of the Communications Equipment industry. The net income has significantly decreased by 47.1% when compared to the same quarter one year ago, falling from $2,238.00 million to $1,184.00 million.
  • Net operating cash flow has decreased to $2,116.00 million or 20.83% when compared to the same quarter last year. In conjunction, when comparing current results to the industry average, QUALCOMM INC has marginally lower results.
  • You can view the full analysis from the report here: QCOM
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HPQ

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9. Hewlett-Packard Co. (HPQ) - Get Report
Industry: Technology
Market Cap: $44.9 billion
Year-to-date return: -14.6%

TheStreet Said: TheStreet Ratings team rates HEWLETT-PACKARD CO as a Buy with a ratings score of B-. TheStreet Ratings Team has this to say about their recommendation:

We rate HEWLETT-PACKARD CO (HPQ) a BUY. This is driven by some important positives, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover. Among the primary strengths of the company is its attractive valuation levels, considering its current price compared to earnings, book value and other measures. We feel its strengths outweigh the fact that the company has had sub par growth in net income.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • HEWLETT-PACKARD CO's earnings per share declined by 9.6% in the most recent quarter compared to the same quarter a year ago. Stable earnings per share over the past year indicate the company has sound management over its earnings and share float. We anticipate these figures will begin to experience more growth in the coming year. During the past fiscal year, HEWLETT-PACKARD CO's EPS of $2.62 remained unchanged from the prior years' EPS of $2.62. This year, the market expects an improvement in earnings ($3.63 versus $2.62).
  • The revenue fell significantly faster than the industry average of 36.6%. Since the same quarter one year prior, revenues slightly dropped by 8.1%. The declining revenue appears to have seeped down to the company's bottom line, decreasing earnings per share.
  • HPQ's debt-to-equity ratio of 0.94 is somewhat low overall, but it is high when compared to the industry average, implying that the management of the debt levels should be evaluated further. Despite the fact that HPQ's debt-to-equity ratio is mixed in its results, the company's quick ratio of 0.67 is low and demonstrates weak liquidity.
  • 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 Computers & Peripherals industry and the overall market on the basis of return on equity, HEWLETT-PACKARD CO has underperformed in comparison with the industry average, but has exceeded that of the S&P 500.
  • You can view the full analysis from the report here: HPQ


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8. Symantec Corp. (SYMC) - Get Report
Industry: Technology/Systems Software
Market Cap: $13.1 billion
Year-to-date return: -16.3%

TheStreet Said: TheStreet Ratings team rates SYMANTEC CORP as a Hold with a ratings score of C+. TheStreet Ratings Team has this to say about their recommendation:

We rate SYMANTEC CORP (SYMC) a HOLD. The primary factors that have impacted our rating are mixed ? some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, disappointing return on equity and feeble growth in the company's earnings per share.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The current debt-to-equity ratio, 0.35, is low and is below the industry average, implying that there has been successful management of debt levels. Along with the favorable debt-to-equity ratio, the company maintains an adequate quick ratio of 1.10, which illustrates the ability to avoid short-term cash problems.
  • SYMC, with its decline in revenue, slightly underperformed the industry average of 10.1%. Since the same quarter one year prior, revenues fell by 13.6%. Weakness in the company's revenue seems to have hurt the bottom line, decreasing earnings per share.
  • The share price of SYMANTEC CORP has not done very well: it is down 17.81% and has underperformed the S&P 500, in part reflecting the company's sharply declining earnings per share when compared to the year-earlier quarter. The fact that the stock is now selling for less than others in its industry in relation to its current earnings is not reason enough to justify a buy rating at this time.
  • 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 Software industry and the overall market on the basis of return on equity, SYMANTEC CORP has outperformed in comparison with the industry average, but has underperformed when compared to that of the S&P 500.
  • You can view the full analysis from the report here: SYMC
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SWKS

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7. Skyworks Solutions (SWKS) - Get Report
Industry: Technology/Semiconductors
Market Cap: $15.9 billion 
Year-to-date return: -19.1%

TheStreet Said: TheStreet Ratings team rates SKYWORKS SOLUTIONS INC as a Buy with a ratings score of A-. TheStreet Ratings Team has this to say about their recommendation:

We rate SKYWORKS SOLUTIONS INC (SWKS) a BUY. This is based on the convergence of positive investment measures, which should help this stock outperform the majority of stocks that we rate. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, notable return on equity, expanding profit margins and good cash flow from operations. Although no company is perfect, currently we do not see any significant weaknesses which are likely to detract from the generally positive outlook.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The revenue growth greatly exceeded the industry average of 11.5%. Since the same quarter one year prior, revenues rose by 38.0%. Growth in the company's revenue appears to have helped boost the earnings per share.
  • SWKS has no debt to speak of therefore resulting in a debt-to-equity ratio of zero, which we consider to be a relatively favorable sign. Along with this, the company maintains a quick ratio of 4.66, which clearly demonstrates the ability to cover short-term cash needs.
  • Current return on equity exceeded its ROE from the same quarter one year prior. This is a clear sign of strength within the company. When compared to other companies in the Semiconductors & Semiconductor Equipment industry and the overall market, SKYWORKS SOLUTIONS INC's return on equity exceeds that of the industry average and significantly exceeds that of the S&P 500.
  • The gross profit margin for SKYWORKS SOLUTIONS INC is rather high; currently it is at 53.70%. It has increased from the same quarter the previous year. Along with this, the net profit margin of 25.60% is above that of the industry average.
  • Net operating cash flow has increased to $221.90 million or 11.50% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of -22.77%.
  • You can view the full analysis from the report here: SWKS
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LRCX

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6. LAM Research Corp. (LRCX) - Get Report
Industry: Technology/Semiconductor Equipment
Market Cap: $10.2 billion
Year-to-date return: -19.7%

TheStreet Said: TheStreet Ratings team rates LAM RESEARCH CORP as a Buy with a ratings score of A-. TheStreet Ratings Team has this to say about their recommendation:

We rate LAM RESEARCH CORP (LRCX) a BUY. This is based on the convergence of positive investment measures, which should help this stock outperform the majority of stocks that we rate. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels, good cash flow from operations and expanding profit margins. We feel its strengths outweigh the fact that the company has had sub par growth in net income.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The revenue growth greatly exceeded the industry average of 11.5%. Since the same quarter one year prior, revenues rose by 18.6%. This growth in revenue does not appear to have trickled down to the company's bottom line, displayed by a decline in earnings per share.
  • The current debt-to-equity ratio, 0.44, is low and is below the industry average, implying that there has been successful management of debt levels. To add to this, LRCX has a quick ratio of 1.96, which demonstrates the ability of the company to cover short-term liquidity needs.
  • Net operating cash flow has increased to $292.07 million or 18.77% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of -22.77%.
  • LAM RESEARCH CORP's earnings per share declined by 45.2% 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, LAM RESEARCH CORP increased its bottom line by earning $3.70 versus $3.68 in the prior year. This year, the market expects an improvement in earnings ($6.09 versus $3.70).
  • You can view the full analysis from the report here: LRCX


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5. Micron Technology (MU) - Get Report
Industry: Technology/Semiconductors
Market Cap: $15.7 billion 
Year-to-date return: -20.5%

TheStreet Said: TheStreet Ratings team rates MICRON TECHNOLOGY INC as a Hold with a ratings score of C+. TheStreet Ratings Team has this to say about their recommendation:

We rate MICRON TECHNOLOGY INC (MU) a HOLD. The primary factors that have impacted our rating are mixed ? some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, weak operating cash flow and a generally disappointing performance in the stock itself.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The debt-to-equity ratio is somewhat low, currently at 0.60, and is less than that of the industry average, implying that there has been a relatively successful effort in the management of debt levels. To add to this, MU has a quick ratio of 1.62, which demonstrates the ability of the company to cover short-term liquidity needs.
  • MICRON TECHNOLOGY INC's earnings per share declined by 38.2% 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, MICRON TECHNOLOGY INC increased its bottom line by earning $2.55 versus $1.00 in the prior year. This year, the market expects an improvement in earnings ($2.67 versus $2.55).
  • Despite any intermediate fluctuations, we have only bad news to report on this stock's performance over the last year: it has tumbled by 52.39%, worse than the S&P 500's performance. Consistent with the plunge in the stock price, the company's earnings per share are down 38.23% 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.
  • 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 Semiconductors & Semiconductor Equipment industry. The net income has significantly decreased by 39.1% when compared to the same quarter one year ago, falling from $806.00 million to $491.00 million.
  • You can view the full analysis from the report here: MU
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TDC

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4. Teradata Corp. (TDC) - Get Report
Industry: Technology/IT Consulting & Other Services
Market Cap: $4.2 billion
Year-to-date return: -21.7%

TheStreet Said: TheStreet Ratings team rates TERADATA CORP as a Hold with a ratings score of C-. TheStreet Ratings Team has this to say about their recommendation:

We rate TERADATA CORP (TDC) a HOLD. The primary factors that have impacted our rating are mixed ? some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and weak operating cash flow.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The current debt-to-equity ratio, 0.51, is low and is below the industry average, implying that there has been successful management of debt levels. To add to this, TDC has a quick ratio of 1.89, which demonstrates the ability of the company to cover short-term liquidity needs.
  • Despite the weak revenue results, TDC has outperformed against the industry average of 21.6%. Since the same quarter one year prior, revenues slightly dropped by 7.8%. Weakness in the company's revenue seems to have hurt the bottom line, decreasing earnings per share.
  • The gross profit margin for TERADATA CORP is rather high; currently it is at 59.55%. Regardless of TDC's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, TDC's net profit margin of -42.53% significantly underperformed when compared to the industry average.
  • Net operating cash flow has decreased to $80.00 million or 42.02% when compared to the same quarter last year. In addition, when comparing the cash generation rate to the industry average, the firm's growth is significantly lower.
  • Return on equity has greatly decreased when compared to its ROE from the same quarter one year prior. This is a signal of major weakness within the corporation. Compared to other companies in the IT Services industry and the overall market, TERADATA CORP's return on equity significantly trails that of both the industry average and the S&P 500.
  • You can view the full analysis from the report here: TDC
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AMAT

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3. Applied Materials Inc. (AMAT) - Get Report
Industry: Technology/Semiconductor Equipment
Market Cap: $17.5 billion
Year-to-date return: -23.5%

TheStreet Said: TheStreet Ratings team rates APPLIED MATERIALS INC as a Buy with a ratings score of B-. TheStreet Ratings Team has this to say about their recommendation:

We rate APPLIED MATERIALS INC (AMAT) a BUY. This is driven by several positive factors, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, growth in earnings per share, increase in net income and reasonable valuation levels. We feel its strengths outweigh the fact that the company shows weak operating cash flow.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • The revenue growth came in higher than the industry average of 11.5%. Since the same quarter one year prior, revenues slightly increased by 9.9%. This growth in revenue appears to have trickled down to the company's bottom line, improving the earnings per share.
  • AMAT's debt-to-equity ratio is very low at 0.24 and is currently below that of the industry average, implying that there has been very successful management of debt levels. To add to this, AMAT has a quick ratio of 1.57, which demonstrates the ability of the company to cover short-term liquidity needs.
  • APPLIED MATERIALS INC has improved earnings per share by 12.5% in the most recent quarter compared to the same quarter a year ago. The company has demonstrated a pattern of positive earnings per share growth over the past two years. We feel that this trend should continue. During the past fiscal year, APPLIED MATERIALS INC increased its bottom line by earning $0.87 versus $0.21 in the prior year. This year, the market expects an improvement in earnings ($1.18 versus $0.87).
  • The company, on the basis of net income growth from the same quarter one year ago, has significantly outperformed against the S&P 500 and exceeded that of the Semiconductors & Semiconductor Equipment industry average. The net income increased by 9.3% when compared to the same quarter one year prior, going from $301.00 million to $329.00 million.
  • You can view the full analysis from the report here: AMAT
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YHOO

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2. Yahoo! Inc. (YHOO)
Industry: Technology/Internet Software and Services
Market Cap: $26.7 billion
Year-to-date return: -26.4%

TheStreet Said: TheStreet Ratings team rates YAHOO INC as a Hold with a ratings score of C+. TheStreet Ratings Team has this to say about their recommendation:

We rate YAHOO INC (YHOO) a HOLD. The primary factors that have impacted our rating are mixed ? some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and notable return on equity. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, weak operating cash flow and a generally disappointing performance in the stock itself.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • YHOO's revenue growth has slightly outpaced the industry average of 7.1%. Since the same quarter one year prior, revenues rose by 14.7%. This growth in revenue does not appear to have trickled down to the company's bottom line, displayed by a decline in earnings per share.
  • Although YHOO's debt-to-equity ratio of 0.04 is very low, it is currently higher than that of the industry average. Along with this, the company maintains a quick ratio of 4.84, which clearly demonstrates the ability to cover short-term cash needs.
  • The gross profit margin for YAHOO INC is currently very high, coming in at 70.85%. Regardless of YHOO's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, YHOO's net profit margin of -1.73% significantly underperformed when compared to the industry average.
  • 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 Internet Software & Services industry. The net income has significantly decreased by 108.0% when compared to the same quarter one year ago, falling from $269.71 million to -$21.55 million.
  • Net operating cash flow has decreased to $307.95 million or 13.83% when compared to the same quarter last year. In addition, when comparing the cash generation rate to the industry average, the firm's growth is significantly lower.
  • You can view the full analysis from the report here: YHOO
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QRVO

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1. Qorvo Inc. (QRVO) - Get Report
Industry: Technology/Semiconductors
Market Cap: $6.5 billion 
Year-to-date return: -43.8%

TheStreet Said: TheStreet Ratings team rates QORVO INC as a Buy with a ratings score of B-. TheStreet Ratings Team has this to say about their recommendation:

We rate QORVO INC (QRVO) a BUY. This is driven by multiple strengths, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, good cash flow from operations and expanding profit margins. We feel its strengths outweigh the fact that the company has had sub par growth in net income.

Highlights from the analysis by TheStreet Ratings Team goes as follows:

  • QRVO's very impressive revenue growth greatly exceeded the industry average of 11.5%. Since the same quarter one year prior, revenues leaped by 113.0%. This growth in revenue does not appear to have trickled down to the company's bottom line, displayed by a decline in earnings per share.
  • QRVO has no debt to speak of therefore resulting in a debt-to-equity ratio of zero, which we consider to be a relatively favorable sign. Along with this, the company maintains a quick ratio of 2.96, which clearly demonstrates the ability to cover short-term cash needs.
  • Net operating cash flow has significantly increased by 290.03% to $141.43 million when compared to the same quarter last year. In addition, QORVO INC has also vastly surpassed the industry average cash flow growth rate of -22.77%.
  • The gross profit margin for QORVO INC is rather high; currently it is at 66.13%. It has increased significantly from the same period last year. Despite the strong results of the gross profit margin, QRVO's net profit margin of 0.30% significantly trails the industry average.
  • QORVO INC 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. But, we feel it is poised for EPS growth in the coming year. During the past fiscal year, QORVO INC increased its bottom line by earning $2.60 versus $0.20 in the prior year. This year, the market expects an improvement in earnings ($4.55 versus $2.60).
  • You can view the full analysis from the report here: QRVO