I just found out about something interesting that’s happening in the Japanese stock market. The Japan Exchange Group has just announced a fairly restrictive measure on how companies can handle their crypto asset holdings.

Basically, if a listed company has more than 50% of its assets in cryptocurrencies, it will no longer be able to be included in major indices like TOPIX. This is a pretty aggressive move, considering that the crypto market is expanding. What’s interesting is that this rule doesn’t affect the index’s current constituents—it only applies to future additions.

The Japanese exchange justifies this by saying that they’re concerned that volatility in the prices of crypto assets could end up destabilizing both stock prices and the overall performance of the indices. This isn’t a completely unjustified reason, but it definitely signals a cautious stance from Japan’s regulator.

What I find relevant is that they recently kicked off a public consultation and plan to implement this formally before the end of the year. So we have a few months to see how the market reacts and whether other exchanges follow a similar path. Japan has always been fairly cautious with the crypto sector, so this isn’t too surprising, but it’s a reminder that regulators are keeping a very close watch on how traditional companies are exposing themselves to digital assets.