trading sessions

ParkerVision (Nasdaq: PRKR) 29.9% HIGHER; shares surged 67 percent yesterday and are continuing higher today, now over the all-important $1 level.

As recently as two Monday's ago, PRKR shares closed at 48 cents. Genetic Technologies Limited (Nasdaq: GENE) 28.7% LOWER; reports completion of a 60 million offering on the Australian Stock Exchange at an issue price of AUD 0.195 per share.

Radiant Systems (Nasdaq: RADS) 30.4% HIGHER; NCR to acquire Radiant for $28 per share. Coffee Holdings (Nasdaq: JVA) 19.7% LOWER; the stock is finally correcting today following six straight sessions of upside, over which time the stock rose about 68 percent.

FiberTower (Nasdaq: FTWR) 16.1% HIGHER; continuing a very volatile run this week. After gaining more than 30 percent to start last week's session, the stock sold of by more than 11 percent over Friday and Monday's trading sessions.

Nobel Learning Communities, Inc. (Nasdaq: NLCI) 32.9% HIGHER; announced Wednesday morning the company has reached a definitive agreement to be acquired by Leeds Equity Partners in a deal valued at about $149 million.

Under the terms of the definitive agreement, the Company's stockholders will receive $11.75 in cash for each share of Nobel Learning common stock held.

SatCon (Nasdaq: SATC) 23.6% HIGHER; traders are finally buying the dip following a nearly 22 percent slide over the last three trading sessions.

Volume is very heavy.

Dubbed as the black week, the week that started October 6, saw the Dow Jones Industrial Average close lower in all five trading sessions and lose 18% of it's value.

Here is a recap of the top news items from this week on Wall Street: 1. On Wednesday the Fed left interest rates unchanged, but indicated they would be reinvesting principal payments from agency debt and agency mortgage-backed securities in longer-term Treasury securities.

Effectively, the Fed has been given the flexibility to purchase treasuries as inflation has trended lower in recent quarters and will "be subdued for some time." Stocks fell sharply from Monday to Wednesday and remained depressed during the last two trading sessions of this week as volume was very light. 2.

Cardica (Nasdaq: CRDC) 59.9% HIGHER; the stock appears to be breaking out on technicals today. The $2 level seems to have been an area of resistance and the price hasn't held over this level since May of last year.

Volume is very heavy today. Bank of Granite (Nasdaq: GRAN) 44.7% HIGHER; continuing higher today for the sixth day in a row.

Over the last 9 trading sessions, shares of GRAN have surged more than 160%. Volume continues to be very strong.

This is clearly a hot momo trade.

Somaxon Pharma (Nasdaq: SOMX) 48.3% HIGHER; over the last five trading sessions, shares of Somaxon have closed higher everyday, adding 46% over the course.

Volume continues to be very heavy. Euro Tech Holdings (Nasdaq: CLWT) 26.2% HIGHER; traders are buying the stock aggressively today as it has broken out since bouncing off the 50-day SMA last week and over the $3.00 level this morning.

Columbia Bancorp (Nasdaq: CBBO) 42% HIGHER; not hearing any news today. Over the last three trading sessions, the stock has been down nearly 30%, with 15% of the move coming yesterday.

The stock may simply be correcting today following so much downside. Volume is very heavy today.

Fannie Mae (NYSE: FNM) 45.8% HIGHER; shares are continuing higher this week following last week's solid upside momentum.

Over the last 3 trading sessions, shares of Fannie have nearly doubled, up about 90%. Just after noon, the stock has already traded 517 million times, which compares to the stock's average daily volume of just 18 million shares.

Mercer International (Nasdaq: MERC) 35.8% HIGHER; since announcing it's Q2 results on July 29, share of Mercer have skyrocketed more than 340%.

Regis Corporation (NYSE: RGS) 22.1% LOWER; intends to offer approximately 11,500,000 shares of common stock in an underwritten public offering and $125 million in convertible senior notes due 2014.

Also issued Q4 sales results. Click here for the full report.