A week or so ago, Daiwa launched the first [mutual fund](https://search.sbisec.co.jp/v2/popwin/info/connect/rfund/H04316241.pdf) and ETF tracking the new JPX Prime 150 index.
The fee is 0.2145%, which is not that cheap, compared to the eMaxis SLIM or Tawara Nikkei 225 funds which cost about 0.15%.
I am not sure what the 実質コスト of this new fund is as the data is not available on [Shintaro](https://shintaro-money.com/index-cost/) yet.
I might wait to see if other providers introduce Prime 150 index funds with lower expense ratios.
This [review](https://www.smartkarma.com/insights/the-tse-s-new-better-index-jpx-prime-150) is pretty negative about the Prime 150 regardless of its cost.
If I understand it right, he is concerned that the index concentrates too much on momentum stocks due to the rules about price multiples and one-year trailing ROE. There is also a potential turnover issue.
What do you think?
Is it worth waiting for a version with a lower expense ratio, or not bothering at all, given the issues this review raises?
Edit: FYI, Japan is less than 10% of my portfolio.
by GachaponPon
