NEW YORK ( TheStreet) -- Several stocks trading near $5 were poised to move on above-average volume during Tuesday's session.

Ballard Power Systems ( BLDP) jumped by 35 cents, or 15.1%, to $2.67 in the premarket session after the company said it has acquired a controlling interest in Denmark-based Dantherm Power, which will result in accelerated development of fuel cell backup power applications across Europe. The 50-day average daily volume for Ballard Power is 470,000, according to the Nasdaq.

Helicos BioSciences ( HLCS) rose by 11 cents, or 9.8%, to $1.23 in the premarket session after the company announced the sale of a Helicos Genetic Analysis System to the Turku Centre for Biotechnology. Terms were not disclosed. Riitta Lahesmaa, Director of the center, said the acquisition of a Helicos system will allow the center to perform novel experiments using single molecule sequencing technology. The 50-day average daily volume for Helicos is 1.27 million.

MDRNA ( MRNA) added 6 cents, or 5.9%, to $1.08 in the premarket session after the company announced the presentation of data highlighting the ability of its UsiRNA construct to significantly minimize off-target effects while maintaining potent RNA Interference (RNAi) activity. The 50-day average daily volume for MDRNA is 1.17 million.

PFSweb ( PSFW) continued to rally, climbing 12.4% to $4.25 in the premarket session. Last week, PFSweb and Procter & Gamble ( PG) jointly announced that they will begin piloting the eStore, an online shopping site that will be owned and operated by PFSweb and exclusively feature P&G products to consumers in the U.S The 50-day average daily volume for PFSweb is 19,000.

Enterra Energy Trust ( ENT) jumped by 37 cents, or 17.4%, to $2.48 in the premarket session after the company said its board of directors unanimously approved the conversion of the Trust to a corporation to be named Equal Energy Ltd. The three-month average daily volume for Enterra is 361,000, according to Yahoo! Finance.

( Earlier at 7:34 a.m. EST.)

Allied Defense Group ( ADG) was set to trade higher after Chemring Group agreed to acquire the company for $7.25 a share in an all-cash deal. The three-month average daily volume for Allied Defense is 27,000, according to Yahoo! Finance.

GenVec ( GNVC) rallied by 26 cents, or 15%, to $2 in the premarket session after the company said it has entered into a research collaboration and license agreement with Novartis ( NVS) to develop treatments for hearing loss and balance disorders. If certain clinical, regulatory and sales milestones are met, GenVec is eligible to receive up to $213.6 mln, including upfront and milestone payments, in addition to royalties on future sales. The 50-day average daily volume for GenVec is 2 million, according to the Nasdaq.

Chelsea Therapeutics ( CHTP) should open higher Tuesday after Roth Capital Partners raised its stock price target to $6 from $5 following a meeting with Chelsea's management, with the firm saying it feels more sanguine about prospects for lead drug Droxidopa to treat neurogenic orthostatic hypotension. The 50-day average daily volume for Chelsea Therapeutics is 462,000.

Hersha Hospitality Group ( HT) may trade higher after R.W. Baird analysts upgraded the stock to outperform from neutral and raised their stock price target to $4 from $3. The firm cited the recent share offering, which helps reduce leverage and increase liquidity. The three-month average daily volume for Hersha Hospitality is 697,000.

-- Written by Robert Holmes in Boston.

Check out all of Tuesday's high-volume, under-$5 stocks at the Dollar Store

Follow Robert Holmes on Twitter and become a fan of TheStreet.com on Facebook.

More from Stocks

Pegasystems Founder Explains Why He Has One of the Hottest Tech Stocks Around

Pegasystems Founder Explains Why He Has One of the Hottest Tech Stocks Around

9 Stocks Goldman Sachs Thinks Will Blow Wall Street's Performance Away in 2019

9 Stocks Goldman Sachs Thinks Will Blow Wall Street's Performance Away in 2019

Jim Cramer on U.S.-China Trade: The Media Has it Wrong

Jim Cramer on U.S.-China Trade: The Media Has it Wrong

Is Tesla's Stock Set to Nearly Double to $500?

Is Tesla's Stock Set to Nearly Double to $500?

Tesla's $78,000 Model 3 Is a Bargain. Here's Why

Tesla's $78,000 Model 3 Is a Bargain. Here's Why