NEW YORK (TheStreet) -- Today's buy-and-trade earnings previews focus on nine companies in five sectors that report quarterly results on Thursday and Friday. Among these stocks are buy rated retail pharmacy chain Walgreen (WAG), the buy rated used cars seller CarMax (KMX - Get Report) and hold rated new Dow component and athletic footwear and apparel maker Nike (NKE)
The nine stocks include four from the retail-wholesale sector, two from the construction sector, and one each from the computer and technology, consumer discretionary and consumer staples sectors.
The computer and technology sector is 27.8% overvalued with an overweight rating. Of the 1136 stocks 52.3% in this sector have buy or strong buy ratings.
The construction sector is 17.2% overvalued with an underweight rating. Of the 156 stocks 56.4% in this sector have sell or strong sell ratings.
Must Read: 4 Stocks Rising With Big Volume
The consumer discretionary sector is 27.6% overvalued with an equal-weight rating. Of the 392 stocks 83.7% in this sector have hold ratings.
The consumer staples sector is 22.6% overvalued with an overweight rating. Of the 255 stocks 48.6% in this sector buy or strong buy ratings.
The retail-wholesale sector is 23.8% overvalued with an overweight rating. Of the 343 stocks 84.5% in this sector have buy or strong buy ratings.
Six of the nine stocks profiled today have buy ratings, two have hold ratings and one has a sell rating. Two stocks are fractionally undervalued by 2.1% and 2.3% and five are overvalued by 21.3% to 62.4%. All nine stocks have gains over the last 12 months, one by 120.8% and another by 441%. Two are below their 200-day simple moving averages while seven are above their 200-day simple SMAs which reflect the risk of reversion to the mean.
Conagra Foods (CAG) ($31.48) set a second half 2013 low at $29.87 on Sept. 30 then as high as $33.47 on Dec. 9 staying below its 200-day SMA at $33.98. Analysts expect the company to report earnings of 55 cents a share in the premarket on Thursday. The buy rated food company is 2.3% undervalued with a gain of 3.8% over the last 12 months. My monthly value level is $31.33 with weekly, semiannual and quarterly risky levels at $33.55, $34.74 and $35.14.