Stock Quotes in this Article: ARTX, GSS, HNSN, IMMU

DELAFIELD, Wis. (Stockpickr) -- At Stockpickr, we track daily portfolios of stocks that are the biggest percentage gainers and the biggest percentage losers.

>>5 Breakout Trades Under $10

Stocks that are making large moves like these are favorites among short-term traders because they can jump into these names and try to capture some of that massive volatility. Stocks that are making big-percentage moves either up or down are usually in play because their sector is becoming attractive or they have a major fundamental catalyst such as a recent earnings release. Sometimes stocks making big moves have been hit with an analyst upgrade or an analyst downgrade.

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. If you time your trade correctly, combining technical indicators with fundamental trends, discipline and sound money management, you will be well on your way to investment success.

>>5 Stocks With Big Insider Buying

With that in mind, let's take a closer look at a several stocks under $10 that are making large moves to the upside today.

Arotech

Arotech (ARTX) is a defense and security products and services company, engaged in two business areas: interactive simulation for military, law enforcement and commercial markets; and batteries and charging systems for the military. This stock closed up 4.5% to $1.85 in Thursday's trading session.

Thursday's Range: $1.74-$1.90

52-Week Range: $0.91-$2.71

Thursday's Volume: 609,000

Three-Month Average Volume: 324,722

From a technical perspective, ARTX spiked sharply higher here back above its 50-day moving average of $1.83 with strong upside volume. Market players should now look for a continuation move higher in ARTX in the short-term if it can manage to take out Thursday's high soon with decent upside volume flows.

Traders should now look for long-biased trades in ARTX as long as it's trending above Thursday's low of $1.74 and then once it sustains a move or close above Thursday's high of $1.90 with volume that hits near or above 324,722 shares. If we get that move soon, then ARTX will set up to re-test or possibly take out its next major overhead resistance levels at $2.16 to $2.24. Any high-volume move above those levels will then give ARTX a chance to tag its 52-week high at $2.71.

Golden Star Resources

Golden Star Resources (GSS) is a gold mining and exploration company, producing gold in Ghana, West Africa. This stock closed up 5.9% to 57 cents per share in Thursday's trading session.

Thursday's Range: $0.53-$0.57

52-Week Range: $0.39-$1.95

Thursday's Volume: 3.59 million

Three-Month Average Volume: 3.37 million

From a technical perspective, GSS spiked higher here and broke out above some near-term overhead resistance at 54 cents per share with above-average volume. This move is quickly pushing shares of GSS within range of triggering another big breakout trade. That trade will hit if GSS manages to take out some near-term overhead resistance at 57 cents per share with high volume.

Traders should now look for long-biased trades in GSS as long as it's trending above its 50-day at 48 cents and then once it sustains a move or close above 57 cents with volume that hits near or above 3.37 million shares. If that breakout hits soon, then GSS will set up to re-test or possibly take out its next major overhead resistance levels at 70 cents to 77 cents, or even 75 cents per share.

Hansen Medical

Hansen Medical (HNSN) develops, manufactures and markets new generation of medical robotics for accurate positioning, manipulation and stable control of catheters and catheter-based technologies. Its products include Magellan Robotic System and Lynx. This stock closed up 7.1% to $1.96 in Thursday's trading session.

Thursday's Range: $1.76-$1.97

52-Week Range: $1.14-$2.75

Thursday's Volume: 410,000

Three-Month Average Volume: 282,011

From a technical perspective, HNSN ripped sharply higher here back above both its 200-day at $1.84 and its 50-day at $1.85 with strong upside volume. This move is quickly pushing shares of HNSN within range of triggering a major breakout trade. That trade will hit if HNSN manages to take out Thursday's high of $1.97 to more near-term overhead resistance levels at $2.10 to $2.18 with high volume.

Traders should now look for long-biased trades in HNSN as long as it's trending above Thursday's low of $1.76 or above more support at $1.72 and then once it sustains a move or close above those breakout levels with volume that hits near or above 282,011 shares. If that breakout triggers soon, then HNSN will set up to re-test or possibly take out its next major overhead resistance levels at $2.50 to its 52-week high at $2.75. Any high-volume move above those levels will then give HNSN a chance to tag $3 to $3.30.

Immunomedics

Immunomedics (IMMU) is a biopharmaceutical company which is focused on the development of monoclonal antibody-based products for the targeted treatment of cancer, autoimmune and other serious diseases. This stock closed up 0.88% to $3.45 in Thursday's trading session.

Thursday's Range: $3.29-$3.52

52-Week Range: $2.11-$7.35

Thursday's Volume: 1.20 million

Three-Month Average Volume: 1.25 million

From a technical perspective, IMMU bounced modestly higher here right above some near-term support at $3.28 with decent upside volume. This stock has been downtrending badly for the last month, with shares dropping sharply lower from its high of $7.35 to its low of $3.28. During that downtrend, shares of IMMU have been consistently making lower highs and lower lows, which is bearish technical price action. That said, the downside volatility for IMMU could be coming to an end in the short-term if this stock can manage to see large volume buying that pushes it above some key near-term overhead resistance levels.

Traders should now look for long-biased trades in IMMU as long as it's trending above that low of $3.28 or above more past support at $3 and then once it sustains a move or close above resistance at $3.94 to its 200-day at $4.15 with volume that hits near or above 1.25 million shares. If we get that move soon, then IMMU will set up to re-test or possibly take out its next major overhead resistance levels at $4.92 to its 50-day at $5.43.

To see more stocks that are making notable moves higher today, check out the Stocks Under $10 Moving Higher portfolio on Stockpickr.

-- Written by Roberto Pedone in Delafield, Wis.


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At the time of publication, author had no positions in stocks mentioned.

Roberto Pedone, based out of Delafield, Wis., is an independent trader who focuses on technical analysis for small- and large-cap stocks, options, futures, commodities and currencies. Roberto studied international business at the Milwaukee School of Engineering, and he spent a year overseas studying business in Lubeck, Germany. His work has appeared on financial outlets including

CNBC.com and Forbes.com. You can follow Pedone on Twitter at www.twitter.com/zerosum24 or @zerosum24.