621 PE investments worth $14.60 billion were announced in the reported nine-month period of 2018: Report. : Private Equity (PE) investments moderated to $14.60 billion during January-September period, owing to macroeconomic concerns, market volatility and valuations of companies, a report said Tuesday. According to Grant Thornton's latest PE Dealtracker, 621 PE investments worth $14.60 billion were announced in the reported nine-month period of 2018. In the year-ago period, the value stood at $15.60 billion.