Hard drive equipment maker Intervac (IVAC +13.8%) soars after beating Q1 EPS estimates, and reporting its order backlog grew 26% Q/Q to $41.3M. Other HDD industry players appear to be getting a lift: WDC +3.1%. STX +3.7%. XRTX +2.2%. Needham (Buy) argues Intervac is nearing an "inflection point," with the industry due to reach max capacity by the end of 2012, and notes the company has been trading at just ~20% above book value.