As the DJIA (NYSEARCA:DIA), S&P 500 (NYSEARCA:SPY) and Nasdaq (NASDAQ:QQQ) all rose higher in trading action on Wednesday, some companies saw their share prices surge even more. Here’s why these stocks performed strongly today:

RadioShack Corporation (NYSE:RSH) shares closed at $10.96, up $1.16, or 11.84% having traded in a 52-week range of $9.15 to $17.71.  The shares finished near its highs, following Barclays’ upgrading of the stock to Equal Weight on valuation earlier today. According to RadioShack, its fundamentals are stabilizing, and financial results will look good in 2012 when compared Y/Y.

Fairchild Semiconductor International (NYSE:FCS) shares closed at $14.53, up $1.52, or 11.68%, having traded in a 52-week range of $10.25 to $21.02, after reporting reported results that surprised to the upside, and issued upbeat guidance, lifting its shares.

Shares of Linear Technology Corporation (NASDAQ:LLTC) have traded in a 52-week range of $25.41 to $35.97, and closed at $33.32, up $3.45, or 11.55%, moving to the top of the S & P leader board. This after its strong upward guidance, and it might have reached an “inflection point” according to CFO Paul Coghlan, who notes that, little growth is expected to come from inventory replenishment, and is “the first positive revision for a larger cap semiconductor stock in a while.”

Out of a total call volume of 5,000 contracts (384 puts), NXP Semiconductors NV (NASDAQ:NXPI) 20 calls (January and February) are active. Implied volatility of 64 (from February call option) is below its 26-week average of 68, according to Track Data. Position for larger price movement by traders is implied by active call volume  into the expected release of Q4 results on February 9. The shares have traded in a 52-week range of $13.06 to $35.32, and closed at $18.98, up $1.79, or 10.41%.

HiRel Systems LLC, a leading supplier of high reliability transformers, inductors, coils, and power conversion products, is being acqiured by Vishay Intertechnology (NYSE:VSH), with a purchase price of approximately $85M, including repayment of HiRel debt, and is subject to customary post-closing adjustments. Shares have traded in a 52-week range of $7.94 to $19.36, and closed at $11.43, up $1.13, or 10.97%.

To contact the reporter on this story: Mark Lawson at staff.writers@wallstcheatsheet.com

To contact the editor responsible for this story: Damien Hoffman at editors@wallstcheatsheet.com

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