Last quarter's VC deal news might be gloomy, but man did the IPO market shine last week. Venture-backed IPOs raised by Ambarella, Workday, Shutterstock and Intercept Pharmaceuticals totaled $824.50 million—that's 19% of the total raised this entire year not including Facebook's $16 billion IPO. Enterprise software owned the NYSE Friday when Workplace shares jumped 74% in their first day of trading. Last week's companies were a good indicator of which industries have been hot for IPOs in 2012—half software, with a healthy serving of pharmaceuticals and biotechnology, plus a dash of semiconductors. 43 VC-backed IPOs have now been completed in 2012, according to the PitchBook Platform.