>>5 "Magic Formula" Stocks for 2013 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 Insiders are Stashing 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.Rubicon Technology ( RBCN) This is an electronic materials provider that develops, manufactures and sells monocrystalline sapphire and other innovative crystalline products for LEDs, RFICs, blue laser diodes, optoelectronics and other optical applications. This stock is trading up 7.7% to $6.84 in recent trading. Today's Range: $6.40-$6.87 52-Week Range: $5.82-$13.59 Volume: 322,000 Three-Month Average Volume: 348,285 From a technical perspective, RBCN is ripping higher here right above some near-term support at $6.07 with decent volume. This move has pushed RBCN into breakout territory, since the stock has started to challenge some near-term overhead resistance levels at $6.51 to $6.79. At last check, RBCN has hit an intraday high of $6.80 and volume is just a bit below its three-month average action of 348,285 shares. Traders should now look for long-biased trades in RBCN as long as it's trending above today's low of $6.40 with strong upside volume flows. I would consider any upside volume day that registers near or above its three-month average action of 348,285 shares as bullish. If RBCN can maintain that trend, then this stock will set up to re-test or possible take out its next major overhead resistance levels at $7.79 to $8.50.