Here are stocks that gapped up today with opening prices significantly higher than the close on the previous trading day:

  • Equinix (EQIX) gapped up today, opening at $165.99 after closing the previous trading session at $149.47. Shares are up 11.6% and trading at a volume of 1.5 million. The stock has moved up across its 50-day moving average of $150.06 today.

  • Regeneron Pharmaceuticals (REGN) closed the previous trading session at $127.11, gapping up to open at $143.06 today. While trading at a volume of 1.5 million, the stock price has risen 11.6%. The stock is trading 19.6% above its 50-day moving average and 38.1% above its 200-day moving average.

  • Citrix Systems (CTXS) gapped up today, opening at $86.35 after closing the previous trading session at $77.17. Shares have risen 9%, trading at a volume of 2.2 million. Share price is up $4.77 (6%) from $79.36 on March 27, 2012. The stock is trading 9.3% above its 50-day moving average and 16.4% above its 200-day moving average.

  • Nuance Communications (NUAN) closed the previous trading session at $22.80, gapping up to open at $25.41 today. Shares are up 8.8% and trading at a volume of 4.2 million. The stock has lost momentum over the last three months, losing $3.57 (-12.6%) from $28.38 on January 30, 2012. The stock has climbed a step closer to its 50-day moving average, sitting at just 99.9% of the mark.

  • Ancestry.com (ACOM) opened at $27.23 after closing the previous trading session at $24.44, gapping up. Trading at a volume of 1.3 million, the stock price is up 10.8%. Shares have been on on the rise over the past month, climbing $4.25 (18.6%) from a price of $22.84 on March 27, 2012. The stock has moved up across its 200-day moving average of $25.07 today.

  • VirnetX Holding Corporation (VHC) gapped up today, opening at $26.67 after closing the previous trading session at $24.07. While trading at a volume of 936,203, the stock price has risen 6.4%. The stock has been on the rise in the last two months, up $2.99 (13.2%) from a price of $22.61 on February 28, 2012. The stock is trading 7.7% above its 50-day moving average and 10.4% above its 200-day moving average.

  • Skechers USA (SKX) opened at $17.69 after closing the previous trading session at $14.92, gapping up. Shares are up 11.2% and trading at a volume of one million. The stock is trading 23.1% above its 50-day moving average and 19.8% above its 200-day moving average.

  • Stamps.com (STMP) gapped up today, opening at $31.74 after closing the previous trading session at $28.30. Shares have risen 12.4%, trading at a volume of 445,432. Shares have shown some positive movement over the last two months as the price has climbed $5.21 (19.6%) from a price of $26.60 on February 28, 2012. The stock is trading 14.7% above its 50-day moving average and 15.5% above its 200-day moving average.

  • Guanwei Recycling (GPRC) closed the previous trading session at $1.56, gapping up to open at $1.73 today. The stock price is up 6.4% with a volume of 280,093. The stock is trading 46.6% above its 50-day moving average and 37.2% above its 200-day moving average.