NEW YORK ( TheStreet) -- The nine stocks I am profiling today have sell ratings according to www.ValuEngine.com and have recently set all-time highs or multi-year highs and are overvalued. Two are components of the Dow Industrial Average.It is a prudent investment policy to book profits or at least to pare back positions in sell-rated stocks to your initial dollar investment in a stock market where 77.6% of all stocks are overvalued, 44.5% by 20% or more. For example, if you invested $5,000 in a stock and today that investment is worth $10,000 you have doubled your money. Selling half the position locks in a significant profit and you keep your initial $5,000 investment.
Value Level: Price at which to enter a GTC limit order to buy on weakness. The letters mean; W-weekly, M-monthly, Q-quarterly, S-semiannual and A-annual. Pivot: A level between a value level and risky level that should be a magnet during the time frame noted. Risky Level: Price at which to enter a GTC limit order to sell on strength. Boeing ( BA) ($117.51) set a new all-time high at $120.38 on Thursday. My monthly value level is $111.85 with no risky levels. CSX) ($26.20) set a multi-year high at $26.90 on Thursday. My quarterly value level is $17.41 with a monthly risky level at $28.41. Du Pont ( DD) ($59.41) set a multi-year high at $60.86 on Thursday. My quarterly value level is $43.42 with a semiannual pivot at $61.73 and semiannual risky level at $67.38. Dow Chemical ( DOW) ($39.24) set a multi-year high at $41.08 on Thursday. My monthly value level is $35.71 with a semiannual risky level at $43.22. Micron ( MU) ($17.20) set a multi-year high at $17.59 on Thursday and has been downgraded to sell. Micron is also in my first post of the day since the company reports quarterly results on Thursday. My semiannual value level is $13.56 with a monthly pivot at $16.26 and no risky levels, but this stock was a victim of the year 2000 tech bubble with a high of $97.50 in July 2000. Nucor ( NUE) ($49.88) set a multi-year high at $51.25 on Thursday. My monthly value level is $47.16 with an annual risky level at $65.23. ROK) ($106.93) set an all-time high at $109.72 on Thursday. My semiannual value level is $99.59 with a semiannual risky level at $111.04. At the time of publication the author held no positions in any of the stocks mentioned. Follow @Suttmeier This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.