The JPX-Nikkei 400 Inverse (-1x) Index is intended to provide the benchmarks, based on the JPX-Nikkei Index 400, to evaluate hedging investment strategy.
The JPX-Nikkei 400 Inverse (-1x) Index is calculated on the JPX-Nikkei 400. JPX-Nikkei 400 is composed common stocks whose main market is the Tokyo Stock Exchange Prime Market, Standard Market or Growth Market (in principle).
The JPX-Nikkei 400 Inverse (-1x) Index is calculated by applying inverse (reversed sign) daily return of the JPX-Nikkei 400.
Base date etc
The indexes started to be published from August 3, 2015. The inception values were 10,000 points on August 30, 2013 (calculation base date) and calculated retroactively back to August 31th, 2006. The indexes are calculated every 15 seconds during the trading hours of the Tokyo Stock Exchange.