This article has been updated from Sept. 30, 2015 with market commentary.

NEW YORK (TheStreet) -- U.S. markets in the third quarter of 2015 were characterized by extreme volatility, facilitated by fears of China's growth slowdown and its own stock market crash. The S&P 500 index had its worst performance in four years as a result of August's market selloff, slumping 6.9% for the three-months ending Sept. 30, despite the market rally on Wednesday. The index is down 6.7% for the year.

"U.S. stocks fell into correction territory in the [third quarter], but we believe this had more to do about fear and overreaction to the same old Emerging Market, commodity and Fed worries as opposed to any real deterioration in U.S. stock fundamentals, which we believe remain in good shape," BMO Capital Markets analysts wrote in an Oct. 1 note. BMO Capital Markets is a division of Bank of Montreal(BMO) - Get Report .

"Our secular bull market call for U.S. stocks remains intact as bear market ingredients are not present. Corrections tend to occur in August, September and October and this one was long overdue," the note said.

The macro economy is expected to "hum along at the current pace of 3% or better" in the fourth quarter, according to JPMorgan Chase(JPM) - Get Report analysts, "largely to high consumer confidence and low price of oil and other commodities."

That said, some stocks somehow managed to avoid the selloff and correlating volatility, most prominently several stocks in the tech, utilities and consumer sectors. Teco Energy (TE) earned the title of best-performing stock in the S&P 500 for the third quarter.

Here are the 10 best-performing stocks for the quarter, paired with TheStreet Ratings to let you know if they're still good stocks to buy.

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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AAP

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10. Advance Auto Parts Inc. (AAP) - Get Report
Industry: Consumer Goods & Services/Automotive Retail
Market Cap: $12.6 billion 
Third-Quarter Return: 18.9%

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

We rate ADVANCE AUTO PARTS INC (AAP) 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, growth in earnings per share, revenue growth, expanding profit margins and largely solid financial position with reasonable debt levels by most measures. 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:

  • 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 33.82% over the past year, a rise that has exceeded that of the S&P 500 Index. 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.
  • ADVANCE AUTO PARTS INC has improved earnings per share by 7.4% 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, ADVANCE AUTO PARTS INC increased its bottom line by earning $6.71 versus $5.33 in the prior year. This year, the market expects an improvement in earnings ($8.30 versus $6.71).
  • Despite its growing revenue, the company underperformed as compared with the industry average of 10.0%. Since the same quarter one year prior, revenues slightly increased by 0.9%. Growth in the company's revenue appears to have helped boost the earnings per share.
  • 48.52% is the gross profit margin for ADVANCE AUTO PARTS INC 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 6.32% trails the industry average.
  • The debt-to-equity ratio is somewhat low, currently at 0.64, and is less than that of the industry average, implying that there has been a relatively successful effort in the management of debt levels. Even though the company has a strong debt-to-equity ratio, the quick ratio of 0.20 is very weak and demonstrates a lack of ability to pay short-term obligations.
  • You can view the full analysis from the report here: AAP

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CMG

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9. Chipotle Mexican Grill (CMG) - Get Report
Industry: Consumer Goods & Services/Restaurants
Market Cap: $22.2 billion
Third-Quarter Return: 19%

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

We rate CHIPOTLE MEXICAN GRILL INC (CMG) 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, impressive record of earnings per share growth, compelling growth in net income, notable return on equity and solid stock price performance. We feel its strengths outweigh the fact that the company is trading at a premium valuation based on our review of its current price compared to such things as earnings and book value.

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

  • The revenue growth came in higher than the industry average of 3.8%. Since the same quarter one year prior, revenues rose by 14.1%. Growth in the company's revenue appears to have helped boost the earnings per share.
  • CHIPOTLE MEXICAN GRILL INC has improved earnings per share by 27.1% 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, CHIPOTLE MEXICAN GRILL INC increased its bottom line by earning $14.13 versus $10.46 in the prior year. This year, the market expects an improvement in earnings ($17.40 versus $14.13).
  • The net income growth from the same quarter one year ago has significantly exceeded that of the S&P 500 and the Hotels, Restaurants & Leisure industry. The net income increased by 27.1% when compared to the same quarter one year prior, rising from $110.27 million to $140.20 million.
  • 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 Hotels, Restaurants & Leisure industry and the overall market on the basis of return on equity, CHIPOTLE MEXICAN GRILL INC has underperformed in comparison with the industry average, but has exceeded that of the S&P 500.
  • 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, the stock's rise over the last year has already helped drive it to a level which is relatively expensive compared to the rest of its industry. We feel, however, that the other strengths this company displays justify these higher price levels.
  • You can view the full analysis from the report here: CMG



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8. Motorola Solutions Inc. (MSI) - Get Report
Industry: Technology/Communications Equipment
Market Cap: $14 billion
Third-Quarter 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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7. H&R Block Inc.(HRB) - Get Report
Industry: Consumer Goods & Services/Specialized Consumer Services
Market Cap: $9.8 billion
Third-Quarter Return: 22.1%

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

We rate BLOCK H & R INC (HRB) 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 increase in net income, revenue growth, largely solid financial position with reasonable debt levels by most measures, solid stock price performance and growth in earnings per share. 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 net income growth from the same quarter one year ago has significantly exceeded that of the S&P 500 and the Diversified Consumer Services industry. The net income increased by 14.3% when compared to the same quarter one year prior, going from -$116.23 million to -$99.66 million.
  • Despite its growing revenue, the company underperformed as compared with the industry average of 11.3%. Since the same quarter one year prior, revenues slightly increased by 3.1%. This growth in revenue appears to have trickled down to the company's bottom line, improving the earnings per share.
  • The current debt-to-equity ratio, 0.30, is low and is below the industry average, implying that there has been successful management of debt levels. To add to this, HRB has a quick ratio of 1.57, which demonstrates the ability of the company to cover short-term liquidity needs.
  • The stock has not only risen over the past year, it has done so at a faster pace than the S&P 500, reflecting the earnings growth and other positive factors similar to those we have cited here. 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.
  • BLOCK H & R INC has improved earnings per share by 12.5% 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, BLOCK H & R INC reported lower earnings of $1.75 versus $1.78 in the prior year. This year, the market expects an improvement in earnings ($2.10 versus $1.75).
  • You can view the full analysis from the report here: HRB



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NVDA

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6. Nvidia Corp. (NVDA) - Get Report
Industry: Technology/Semiconductors
Market Cap: $12.8 billion
Third-Quarter Return: 22.5%

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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5. Activision Blizzard Inc. (ATVI) - Get Report
Industry: Technology/Home Entertainment Software
Market Cap: $22.6 billion 
Third-Quarter 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
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CB

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4. Chubb Corp. (CB) - Get Report
Industry: Financial Services/Property & Casualty Insurance
Market Cap: $27.8 billion 
Third-Quarter Return: 28.9%

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

We rate CHUBB CORP (CB) 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, largely solid financial position with reasonable debt levels by most measures, good cash flow from operations, notable return on equity and attractive valuation levels. We feel its strengths outweigh the fact that the company shows low profit margins.

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

  • 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 32.39% 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, CB should continue to move higher despite the fact that it has already enjoyed a very nice gain in the past year.
  • Although CB's debt-to-equity ratio of 0.21 is very low, it is currently higher than that of the industry average.
  • Net operating cash flow has increased to $552.00 million or 35.96% when compared to the same quarter last year. In addition, CHUBB CORP has also vastly surpassed the industry average cash flow growth rate of -46.11%.
  • 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 Insurance industry and the overall market on the basis of return on equity, CHUBB CORP has outperformed in comparison with the industry average, but has underperformed when compared to that of the S&P 500.
  • Despite the weak revenue results, CB has outperformed against the industry average of 12.2%. Since the same quarter one year prior, revenues slightly dropped by 1.6%. The declining revenue has not hurt the company's bottom line, with increasing earnings per share.
  • You can view the full analysis from the report here: CB
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3. AGL Resources Inc. (GAS)
Industry: Utilities-Non-Telecom/Gas Utilities
Market Cap: $7.3 billion
Third-Quarter Return: 31.1%

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

We rate AGL RESOURCES INC (GAS) 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 good cash flow from operations and solid stock price performance. We feel its strengths outweigh the fact that the company has had generally high debt management risk by most measures that we evaluated.

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

  • Net operating cash flow has increased to $365.00 million or 13.35% when compared to the same quarter last year. The firm also exceeded the industry average cash flow growth rate of 1.52%.
  • 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.
  • GAS, with its decline in revenue, slightly underperformed the industry average of 20.1%. Since the same quarter one year prior, revenues fell by 24.2%. Weakness in the company's revenue seems to have hurt the bottom line, decreasing earnings per share.
  • The change in net income from the same quarter one year ago has significantly exceeded that of the Gas Utilities industry average, but is less than that of the S&P 500. The net income has significantly decreased by 27.6% when compared to the same quarter one year ago, falling from $58.00 million to $42.00 million.
  • AGL RESOURCES INC's earnings per share declined by 27.1% in the most recent quarter compared to 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, AGL RESOURCES INC increased its bottom line by earning $4.72 versus $2.45 in the prior year. For the next year, the market is expecting a contraction of 37.1% in earnings ($2.97 versus $4.72).
  • You can view the full analysis from the report here: GAS

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2. Cablevision Systems Corp. (CVC)
Industry: Consumer Goods & Services/Cable & Satellite
Market Cap: $8.9 billion
Third-Quarter Return: 35.6%

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

We rate CABLEVISION SYS CORP (CVC) 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, expanding profit margins and solid stock price performance. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, weak operating cash flow and feeble growth in the company's earnings per share.

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 6.4%. Since the same quarter one year prior, revenues slightly increased by 1.6%. 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 CABLEVISION SYS CORP is rather high; currently it is at 51.28%. Regardless of CVC's high profit margin, it has managed to decrease from the same period last year. Despite the mixed results of the gross profit margin, the net profit margin of 4.57% trails the industry average.
  • 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 Media industry average. The net income has decreased by 19.8% when compared to the same quarter one year ago, dropping from $94.21 million to $75.60 million.
  • Net operating cash flow has decreased to $368.70 million or 12.87% 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: CVC
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TE

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1. Teco Energy Inc. (TE)
Industry: Utilities-Non-telecom/Multi-Utilities
Market Cap: $6.2 billion
Third-Quarter Return: 48.7%

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

We rate TECO ENERGY INC (TE) 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, good cash flow from operations, solid stock price performance, reasonable valuation levels and notable return on equity. 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 7.5%. Since the same quarter one year prior, revenues rose by 12.4%. 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 significantly increased by 102.15% to $149.80 million when compared to the same quarter last year. In addition, TECO ENERGY INC has also vastly surpassed the industry average cash flow growth rate of 41.60%.
  • TECO ENERGY INC' earnings per share from the most recent quarter came in slightly below the year earlier quarter. 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, TECO ENERGY INC increased its bottom line by earning $0.92 versus $0.88 in the prior year. This year, the market expects an improvement in earnings ($1.10 versus $0.92).
  • Compared to its closing price of one year ago, TE's share price has jumped by 54.75%, exceeding the performance of the broader market during that same time frame. Looking ahead, the stock's sharp rise over the last year has already helped drive it to a level which is relatively expensive compared to the rest of its industry. We feel, however, that other strengths this company displays justify these higher price levels.
  • You can view the full analysis from the report here: TE