Fonar Corp (FONR)

Fonar (FONR) has been upgraded by TheStreet Ratings from Hold to Buy with a ratings score of B.

Fonar Corporation (Nasdaq:FONR) has been upgraded by TheStreet Ratings from a hold to buy.

Unusual volume can signal that hedge funds and momentum traders are piling into a stock ahead of a catalyst.

Trade-Ideas LLC identified Fonar Corporation (FONR) as a "dead cat bounce" (down big yesterday but up big today) candidate

Trade-Ideas LLC identified Fonar Corporation (FONR) as a new lifetime high candidate

Unusual volume can signal that hedge funds and momentum traders are piling into a stock ahead of a catalyst.

Some of the best investment calls in 2013 have been among small-mid cap tech and healthcare stocks trading for $5-$10 with medium-term catalysts.

Often when above-average volume moves into an equity, it precedes a large spike in volatility.

Fonar Corporation (Nasdaq:FONR) has been downgraded by TheStreet Ratings from from a buy to hold.

Fonar Corporation (Nasdaq:FONR) has been downgraded by TheStreet Ratings from from a buy to hold.

Regardless of the reason behind it, when a stock makes a large-percentage move, it is often just the start of a new major trend -- a trend that can lead to huge profits.

Fonar Corporation (Nasdaq:FONR) has been upgraded by TheStreet Ratings from a hold to buy.

These under-$10 stocks look poised to trade higher from current levels.

Shares of Fonar Corporation (Nasdaq:FONR) were gapping up Wednesday morning with an open price 10.3% higher than Tuesday's closing price. The stock closed at $4.26 yesterday and opened today's trading at $4.70.

Shares of Fonar Corporation (Nasdaq:FONR) have taken a tremendous swing upward. The stock is trading at $5.17 as of 2:20 p.m. ET, 21.1% above Tuesday's closing price of $4.27. Volume is at 672,362, 1.5 times the daily average of 444,600.

Shares of Fonar Corporation (Nasdaq:FONR) have taken a tremendous swing upward. The stock is trading at $5.96 as of 2:25 p.m. ET, 20.6% above Friday's closing price of $4.94. Volume is at 1.3 million, 6.8 times the daily average of 192,900.

Shares of Fonar Corporation (Nasdaq:FONR) have taken a tremendous swing upward. The stock is trading at $2.62 as of 3:45 p.m. ET, 20.2% above Wednesday's closing price of $2.18. Volume is at 278,983, eight times the daily average of 35,000.

Shares of Fonar Corporation (Nasdaq:FONR) have taken a tremendous swing upward. The stock is trading at $2.44 as of 9:40 a.m. ET, 25.8% above Monday's closing price of $1.94. Volume is at 429,049, 12.3 times the daily average of 35,000.

Shares of Fonar Corporation (Nasdaq:FONR) have taken a tremendous swing upward. The stock is trading at $2.14 as of 9:46 a.m. ET, 25.1% above Monday's closing price of $1.71. Volume is at 161,906, 5.7 times the daily average of 28,400.

TheStreet presents a rundown of the winners in the small-cap space during the day's trading.

Several stocks trading near $5, including YRC Worldwide, were moving on above-average volume Tuesday.

Fonar tumbled Monday on above-average volume after the medical equipment maker reported a third-quarter loss that swelled from a year earlier.

Several small-cap stocks were poised to move on above-average volume during Tuesday's session.

Accelr8 Technology revs higher.

In a poor day for the market Tuesday, DepoMed plummeted after a disappointing drug trial.

Genta is crushed after Aventis venture is terminated.