日経平均 per - SERP Analysis

https://nikkeiyosoku.com/nikkeiper/

https://indexes.nikkei.co.jp/nkave/archives/data%3Flist%3Dper

https://nikkei225jp.com/data/per.php

https://www.nikkei.com/markets/kabu/japanidx/

https://www.nli-research.co.jp/files/topics/60207_ext_18_0.pdf

https://www.moomoo.com/ja/community/feed/which-is-correct-the-nikkei-average-per-index-base-or-112522146807822

https://www.smd-am.co.jp/market/ichikawa/2025/08/irepo250812/

https://shikiho.toyokeizai.net/news/0/905233

https://finance.yahoo.co.jp/quote/998407.O