NEW YORK (TheStreet) -- The technology sector was not immune to August's market selloff, with the S&P 500 Information Technology Index down 4.1% for the quarter. Still plenty of tech stocks were able to buck the trend.

The S&P 500 index saw its worst quarterly performance in four years, slumping 6.9% for the three-months ending Sept. 30 and down 6.7% for the year.

Here are the 10 best-performing stocks in 2015, paired with TheStreet Ratings to let you know if you should still buy these stocks as we head into the final quarter of the year. And when you're done, be sure to read which stocks in the larger S&P 500 were the best performers in 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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10. Visa Inc. (V) - Get Report
Industry: Technology/Data Processing & Outsourced Services
Market Cap: $167.5 billion
Year-to-date return: 3.7%

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

We rate VISA INC (V) 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, growth in earnings per share, increase in net income and expanding profit margins. 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 21.6%. Since the same quarter one year prior, revenues rose by 11.5%. Growth in the company's revenue appears to have helped boost the earnings per share.
  • V 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 the favorable debt-to-equity ratio, the company maintains an adequate quick ratio of 1.47, which illustrates the ability to avoid short-term cash problems.
  • VISA INC has improved earnings per share by 27.2% 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, VISA INC increased its bottom line by earning $2.15 versus $1.90 in the prior year. This year, the market expects an improvement in earnings ($2.62 versus $2.15).
  • The net income growth from the same quarter one year ago has significantly exceeded that of the S&P 500 and the IT Services industry. The net income increased by 24.8% when compared to the same quarter one year prior, going from $1,360.00 million to $1,697.00 million.
  • The gross profit margin for VISA INC is rather high; currently it is at 67.99%. It has increased from the same quarter the previous year. Along with this, the net profit margin of 48.23% significantly outperformed against the industry average.
  • You can view the full analysis from the report here: V
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FISV

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9. Fiserv Inc. (FISV) - Get Report
Industry: Technology/Data Processing & Outsourced Services
Market Cap: $20 billion
Third-quarter return: 4.6%

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

We rate FISERV INC (FISV) 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, expanding profit margins, notable return on equity, solid stock price performance and largely solid financial position with reasonable debt levels by most 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:

  • The revenue growth came in higher than the industry average of 21.6%. Since the same quarter one year prior, revenues slightly increased by 3.6%. 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 gross profit margin for FISERV INC is rather high; currently it is at 53.31%. It has increased from the same quarter the previous year. Regardless of the strong results of the gross profit margin, the net profit margin of 9.78% trails the industry average.
  • The return on equity has improved slightly when compared to the same quarter one year prior. This can be construed as a modest strength in the organization. Compared to other companies in the IT Services industry and the overall market on the basis of return on equity, FISERV INC has underperformed in comparison with the industry average, but has exceeded that of the S&P 500.
  • Compared to its closing price of one year ago, FISV's share price has jumped by 33.84%, exceeding the performance of the broader market during that same time frame. We feel that the stock's sharp appreciation over the last year has driven it to a price level which is now somewhat expensive compared to the rest of its industry. The other strengths this company shows, however, justify the higher price levels.
  • FISERV INC's earnings per share declined by 18.5% 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, FISERV INC increased its bottom line by earning $2.98 versus $2.45 in the prior year. This year, the market expects an improvement in earnings ($3.82 versus $2.98).
  • You can view the full analysis from the report here: FISV


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8. Facebook Inc. (FB) - Get Report
Industry: Technology/Internet Software & Services
Market Cap: $244.7 billion
Third-quarter return: 4.8%

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

We rate FACEBOOK INC (FB) a BUY. This is driven by a number of 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, expanding profit margins and solid stock price performance. 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 7.1%. Since the same quarter one year prior, revenues rose by 38.9%. 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.
  • FB's debt-to-equity ratio is very low at 0.00 and is currently below that of the industry average, implying that there has been very successful management of debt levels. Along with this, the company maintains a quick ratio of 8.47, which clearly demonstrates the ability to cover short-term cash needs.
  • Net operating cash flow has increased to $1,880.00 million or 40.19% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of 19.67%.
  • The gross profit margin for FACEBOOK INC is currently very high, coming in at 94.81%. It has increased from the same quarter the previous year. Regardless of the strong results of the gross profit margin, the net profit margin of 17.78% trails the industry average.
  • FACEBOOK INC's earnings per share declined by 16.7% 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, FACEBOOK INC increased its bottom line by earning $1.10 versus $0.59 in the prior year. This year, the market expects an improvement in earnings ($2.07 versus $1.10).
  • You can view the full analysis from the report here: FB
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7. Fidelity National Information Services   (FIS) - Get Report
Industry: Technology/Data Processing & Outsourced Services
Market Cap: $18.8 billion
Year-to-date return: 8.5%

TheStreet Said: TheStreet Ratings team rates FIDELITY NATIONAL INFO SVCS as a Buy with a ratings score of A. TheStreet Ratings Team has this to say about their recommendation:

We rate FIDELITY NATIONAL INFO SVCS (FIS) 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 solid stock price performance, impressive record of earnings per share growth, compelling growth in net income, largely solid financial position with reasonable debt levels by most measures and expanding profit margins. 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:

  • Looking at where the stock is today compared to one year ago, we find that it is not only higher, but it has also clearly outperformed the rise in the S&P 500 over the same period. Although other factors naturally played a role, the company's strong earnings growth was key. Looking ahead, unless broad bear market conditions prevail, we still see more upside potential for this stock, despite the fact that it has already risen over the past year.
  • FIDELITY NATIONAL INFO SVCS has improved earnings per share by 37.1% 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, FIDELITY NATIONAL INFO SVCS increased its bottom line by earning $2.39 versus $1.66 in the prior year. This year, the market expects an improvement in earnings ($3.30 versus $2.39).
  • The net income growth from the same quarter one year ago has significantly exceeded that of the S&P 500 and the IT Services industry. The net income increased by 34.3% when compared to the same quarter one year prior, rising from $178.80 million to $240.20 million.
  • The debt-to-equity ratio is somewhat low, currently at 0.78, and is less than that of the industry average, implying that there has been a relatively successful effort in the management of debt levels. Along with the favorable debt-to-equity ratio, the company maintains an adequate quick ratio of 1.17, which illustrates the ability to avoid short-term cash problems.
  • 42.37% is the gross profit margin for FIDELITY NATIONAL INFO SVCS which we consider to be strong. It has increased from the same quarter the previous year. Regardless of the strong results of the gross profit margin, the net profit margin of 15.13% trails the industry average.
  • You can view the full analysis from the report here: FIS
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6. Total System Services Inc. (TSS) - Get Report
Industry: Technology/Data Processing & Outsourced Services
Market Cap: $8.3 billion
Year-to-date return: 8.7%

TheStreet Said: TheStreet Ratings team rates TOTAL SYSTEM SERVICES INC as a Buy with a ratings score of A+. TheStreet Ratings Team has this to say about their recommendation:

We rate TOTAL SYSTEM SERVICES INC (TSS) 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, solid stock price performance, impressive record of earnings per share growth and good cash flow from operations. 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 21.6%. Since the same quarter one year prior, revenues rose by 15.1%. Growth in the company's revenue appears to have helped boost the earnings per share.
  • The debt-to-equity ratio is somewhat low, currently at 0.81, 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, TSS has a quick ratio of 2.00, which demonstrates the ability of the company to cover short-term liquidity needs.
  • Powered by its strong earnings growth of 40.62% and other important driving factors, this stock has surged by 48.41% over the past year, outperforming the rise in the S&P 500 Index during the same period. Turning to the future, naturally, any stock can fall in a major bear market. However, in almost any other environment, the stock should continue to move higher despite the fact that it has already enjoyed nice gains in the past year.
  • TOTAL SYSTEM SERVICES INC has improved earnings per share by 40.6% 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, TOTAL SYSTEM SERVICES INC increased its bottom line by earning $1.46 versus $1.27 in the prior year. This year, the market expects an improvement in earnings ($2.29 versus $1.46).
  • Net operating cash flow has increased to $126.80 million or 39.74% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of -2.74%.
  • You can view the full analysis from the report here: TSS


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5. Verisign Inc. (VRSN) - Get Report
Industry: Technology/Internet Software & Services
Market Cap: $7.7 billion
Year-to-date return: 14.3%

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

We rate VERISIGN INC (VRSN) 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. The company's strengths can be seen in multiple areas, such as its revenue growth, good cash flow from operations, expanding profit margins and solid stock price performance. 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:

  • Despite its growing revenue, the company underperformed as compared with the industry average of 7.1%. Since the same quarter one year prior, revenues slightly increased by 4.8%. 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.
  • Net operating cash flow has increased to $174.96 million or 44.46% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of 19.67%.
  • The gross profit margin for VERISIGN INC is currently very high, coming in at 87.68%. Regardless of VRSN's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, VRSN's net profit margin of 35.42% significantly outperformed against the industry.
  • Looking at where the stock is today compared to one year ago, we find that it is not only higher, but it has also clearly outperformed the rise in the S&P 500 over the same period, despite the company's weak earnings results. Turning our attention to the future direction of the stock, it goes without saying that even the best stocks can fall in an overall down market. However, in any other environment, this stock still has good upside potential despite the fact that it has already risen in the past year.
  • VERISIGN INC' earnings per share from the most recent quarter came in slightly below the year earlier quarter. The company has suffered a declining pattern of earnings per share over the past year. However, we anticipate this trend reversing over the coming year. During the past fiscal year, VERISIGN INC reported lower earnings of $2.52 versus $3.54 in the prior year. This year, the market expects an improvement in earnings ($3.04 versus $2.52).
  • You can view the full analysis from the report here: VRSN


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4. Google Inc. (GOOGL) - Get Report (GOOG) - Get Report
Industry: Technology/Internet Software & Services
Market Cap: $420.6 billion 
Year-to-date return: 16.9% - Class C; 18.2% - Class A

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

We rate GOOGLE INC (GOOGL) 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. 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, increase in net income and good cash flow from operations. We feel its strengths outweigh the fact that the company has had somewhat disappointing return on equity.

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

  • GOOGL's revenue growth has slightly outpaced the industry average of 7.1%. Since the same quarter one year prior, revenues rose by 11.1%. 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 GOOGL's debt-to-equity ratio of 0.05 is very low, it is currently higher than that of the industry average. Along with this, the company maintains a quick ratio of 4.60, which clearly demonstrates the ability to cover short-term cash needs.
  • 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 Internet Software & Services industry average. The net income increased by 17.3% when compared to the same quarter one year prior, going from $3,351.00 million to $3,931.00 million.
  • Net operating cash flow has increased to $6,985.00 million or 24.13% when compared to the same quarter last year. In addition, GOOGLE INC has also modestly surpassed the industry average cash flow growth rate of 19.67%.
  • You can view the full analysis from the report here: GOOGL

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3. Motorola Solutions Inc. (MSI) - Get Report
Industry: Technology/Communications Equipment
Market Cap: $14 billion
Year-to-date return: 19.2%

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

We rate MOTOROLA SOLUTIONS INC (MSI) 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 solid stock price performance, growth in earnings per share 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:

  • Looking at where the stock is today compared to one year ago, we find that it is not only higher, but it has also clearly outperformed the rise in the S&P 500 over the same period. Although other factors naturally played a role, the company's strong earnings growth was key. Looking ahead, our view is that this company's fundamentals will not have much impact in either direction, allowing the stock to generally move up or down based on the push and pull of the broad market.
  • MOTOROLA SOLUTIONS INC reported significant earnings per share improvement 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, MOTOROLA SOLUTIONS INC swung to a loss, reporting -$3.12 versus $3.47 in the prior year. This year, the market expects an improvement in earnings ($3.36 versus -$3.12).
  • Despite the weak revenue results, MSI has outperformed against the industry average of 11.9%. Since the same quarter one year prior, revenues slightly dropped by 1.9%. The declining revenue has not hurt the company's bottom line, with increasing earnings per share.
  • 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 Communications Equipment industry. The net income has significantly decreased by 82.6% when compared to the same quarter one year ago, falling from $824.00 million to $143.00 million.
  • Net operating cash flow has decreased to $140.00 million or 19.07% when compared to the same quarter last year. In conjunction, when comparing current results to the industry average, MOTOROLA SOLUTIONS INC has marginally lower results.
  • You can view the full analysis from the report here: MSI
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2. Nvidia Corp. (NVDA) - Get Report
Industry: Technology/Semiconductors
Market Cap: $12.9 billion
Year-to-date return: 22.6%

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

We rate NVIDIA CORP (NVDA) 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. 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, good cash flow from operations, solid stock price performance 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 came in higher than the industry average of 11.5%. Since the same quarter one year prior, revenues slightly increased by 4.5%. 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, 0.34, 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 5.36, which clearly demonstrates the ability to cover short-term cash needs.
  • Net operating cash flow has significantly increased by 69.29% to $163.00 million when compared to the same quarter last year. In addition, NVIDIA CORP has also vastly surpassed the industry average cash flow growth rate of -22.77%.
  • Looking at where the stock is today compared to one year ago, we find that it is not only higher, but it has also clearly outperformed the rise in the S&P 500 over the same period, despite the company's weak earnings results. Turning our attention to the future direction of the stock, it goes without saying that even the best stocks can fall in an overall down market. However, in any other environment, this stock still has good upside potential despite the fact that it has already risen in the past year.
  • The gross profit margin for NVIDIA CORP is rather high; currently it is at 60.45%. Regardless of NVDA's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, NVDA's net profit margin of 2.25% is significantly lower than the industry average.
  • You can view the full analysis from the report here: NVDA
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1. Activision Blizzard Inc. (ATVI) - Get Report
Industry: Technology/Home Entertainment Software
Market Cap: $22.6 billion
Year-to-date return: 27.6%

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

We rate ACTIVISION BLIZZARD INC (ATVI) 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, solid stock price performance, reasonable valuation levels, expanding profit margins and good cash flow from operations. Although the company may harbor some minor weaknesses, we feel they are unlikely to have a significant impact on results.

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

  • The revenue growth came in higher than the industry average of 10.1%. Since the same quarter one year prior, revenues slightly increased by 7.6%. This growth in revenue appears to have trickled down to the company's bottom line, improving the earnings per share.
  • Investors have apparently begun to recognize positive factors similar to those we have mentioned in this report, including earnings growth. This has helped drive up the company's shares by a sharp 48.46% over the past year, a rise that has exceeded that of the S&P 500 Index. Regarding the stock's future course, although almost any stock can fall in a broad market decline, ATVI should continue to move higher despite the fact that it has already enjoyed a very nice gain in the past year.
  • The gross profit margin for ACTIVISION BLIZZARD INC is currently very high, coming in at 81.80%. It has increased from the same quarter the previous year.
  • Net operating cash flow has increased to $135.00 million or 27.35% when compared to the same quarter last year. In addition, ACTIVISION BLIZZARD INC has also vastly surpassed the industry average cash flow growth rate of -30.52%.
  • You can view the full analysis from the report here: ATVI