 Enservco Corp NYSEAMERICAN:ENSVs share price gapped up prior to trading on Friday . The stock had previously closed at 0.19, but opened at 0.19. Enservco shares last traded at 0.19, with a volume of 1,531,200 shares changing hands. Several analysts recently issued reports on ENSV shares. Alliance Global Partners cut Enservco from a buy rating ... 