Bitcoin Magazine

7 Reasons JPX Should Reconsider Its Proposed Digital Asset Exclusion From TOPIX

A closer look at why the consultation’s proposed deferral sits awkwardly inside a rules-based benchmark and what a better path forward might look like.

JPX Market Innovation & Research (JPXI) is considering a new rule that would defer companies whose principal asset is cryptoassets from new inclusion in TOPIX and other periodically reviewed indices. The proposal is measured in tone, and the underlying concern, how to treat a newly emerging category of issuer, is a reasonable one for any index provider to think about.

But the specific rule under consultation raises real questions. It would affect companies like Metaplanet, Remixpoint, and ANAP Holdings, along with a growing set of Japanese issuers whose business models are fully legitimate, fully regulated, and fully aligned with long-standing corporate treasury practices.

Here are seven reasons JPXI should reconsider the proposal before February 2026.

1. The Rule Doesn’t Measure What TOPIX Normally Measures

TOPIX is designed to function as a broad, neutral, investable benchmark of the Japanese equity market. Its methodology already contains objective tools for that purpose: liquidity screens, free-float-adjusted market capitalization criteria, continuation buffers, and established treatment for delistings and other listing-quality events.

A crypto-asset screen is a different kind of test. It doesn’t measure liquidity, free float, turnover cost, market capitalization, or listing quality. It looks instead at the composition of a company’s balance sheet.

That’s a meaningful departure from how TOPIX eligibility has historically worked, and it deserves a clearer justification than the consultation currently provides. If a company satisfies TOPIX’s ordinary eligibility requirements, deferring it because of one category of asset introduces a new kind of judgment into a methodology that has been valued precisely for its objectivity.

2. “Principal Asset Is Cryptoassets” Needs a Clearer Definition

The consultation refers to companies whose “principal asset is cryptoassets,” but leaves several administrative questions open:

• Is the test based on parent-only holdings or consolidated holdings?
• Would exposure through wholly owned subsidiaries, affiliated companies, or strategic equity stakes be captured?
• Would indirect exposure through securities, derivatives, or economically similar instruments count?
• Is the inquiry formal (direct legal title) or substantive (economic exposure)?

These aren’t edge cases. They determine which companies the rule actually applies to. Index methodology gains its credibility from rules that are objective, measurable, and consistently administrable, and a clearer definition would help everyone: issuers, investors, and JPXI itself.

3. The Rule May Be Easier to Work Around Than to Apply

A practical concern follows from the definitional question. If direct Bitcoin holdings by the parent company are disfavored, but equivalent exposure through other structures is not, the rule becomes sensitive to legal form rather than economic substance.

Consider the asymmetry:

• A direct Bitcoin position would trigger the rule
• A position in the iShares Bitcoin Trust ETF (IBIT) likely would not
• A position in a listed Bitcoin miner likely would not
• A stake in a crypto-linked subsidiary likely would not

The economic exposure in these cases can be very similar. The index treatment would be quite different. That creates an incentive for issuers to restructure toward less transparent forms of exposure rather than disclose direct holdings on the balance sheet. A benchmark rule generally works better when it encourages clear disclosure rather than the opposite.

4. The Carve-Out for Existing Constituents Creates an Internal Tension

The consultation contemplates deferring new inclusion while not applying the rule to existing constituents. This is understandable from a stability standpoint, no one wants unnecessary index churn.

But it also creates an internal tension in the rule’s logic. If Bitcoin treasury exposure were genuinely incompatible with TOPIX, it would be difficult to justify exempting current members. And if it isn’t incompatible, it’s worth asking why new entrants meeting the same investability criteria should be treated differently.

Reconciling that asymmetry would strengthen the proposal considerably.