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.
5. “For the Time Being” Leaves the Timeline Open-Ended
The consultation says the deferral would apply “for the time being,” without specifying a review period, exit standard, or sunset mechanism. In practice, that leaves the timeline open-ended.
The timing matters here. October 2026 will be the first periodic review under the next-generation TOPIX framework in which Standard and Growth market companies can become eligible through the new process. A deferral that coincides with that review, without a defined path back to eligibility, could function as a longer-term exclusion even if it isn’t framed that way.
A clearer review cadence, or an explicit sunset, would make the proposal easier to evaluate on its merits.
6. Global Peers Have Taken More Time on the Same Question
JPXI is not the only index provider thinking about this. MSCI recently considered a threshold-based approach to digital-asset treasury companies and ultimately did not adopt a blanket exclusion, acknowledging the need for further work to distinguish operating companies from non-operating or investment-like entities. FTSE Russell has not announced a comparable rule.
The common thread is that the classification question is genuinely unsettled. Operating companies that hold Bitcoin alongside other business lines: media, energy, retail, mining, infrastructure, don’t fit neatly into existing categories, and the global index community is still working out how to think about them.
Given that, there’s a reasonable case for JPXI to engage further with issuers and market participants before codifying a rule, rather than moving ahead of where the broader conversation has landed.
7. An Asset-Neutral Framework Would Be More Durable
If the underlying concern is that some listed companies have become more concentrated or investment-like, that concern is worth addressing, but it isn’t unique to cryptoassets. Concentrated holdings can take many forms: listed equities, private-company stakes, fund interests, real estate, or other non-operating assets.
A framework that applies consistently across these categories would likely be more durable than a single-asset rule. It would also sidestep the definitional and arbitrage concerns above, since the test would focus on the economic characteristic JPXI actually cares about rather than on one particular asset class.
Several paths could accomplish this:
- Enhanced disclosure standards for concentrated treasury positions of any kind, giving investors clarity without changing index composition
- An asset-neutral concentration framework that applies the same test to any non-operating asset held above a defined threshold
- An optional index variant for investors who want exposure to the Japanese market with cryptoasset-heavy companies excluded, offered alongside, not in place of, the flagship benchmark
Where This Leaves the Proposal
None of this is to say JPXI’s instinct to think carefully about a new category of issuer is wrong. It isn’t. Bitcoin treasury companies are relatively new, and their prominence in Japan has grown quickly enough that questions about how to treat them are worth taking seriously.
But the specific rule on consultation is narrower, vaguer, and more open-ended than the questions it’s trying to answer. A clearer definition, a defined review period, and an asset-neutral framing would go a long way toward addressing the underlying concerns while preserving what has made TOPIX a trusted benchmark: objective, rules-based eligibility that reflects the Japanese equity market as it is.
That combination, substance over form, clarity over ambiguity, neutrality across asset classes, seems like the stronger path forward.
Add Your Signature
Bitcoin For Corporations has organized a coalition letter urging JPXI to withdraw the proposed exclusion and preserve TOPIX as a neutral, rules-based benchmark. The public comment period closes May 7, 2026 and every signature strengthens the case that this issue matters to issuers, investors, and market participants worldwide.
If the arguments above resonate, add your name. Individuals and organizations from any jurisdiction can sign.
→ Sign the coalition letter at topix.bitcoinforcorporations.com
You can also review the full position letter, see who has already signed, and share the campaign with your network from the same page. The deadline is firm, and the window to shape JPXI’s final decision is short.
Disclaimer: This content was prepared on behalf of Bitcoin For Corporations for informational purposes only. It reflects the author’s own analysis and opinion and should not be relied upon as investment advice. Nothing in this article constitutes an offer, invitation, or solicitation to purchase, sell, or subscribe for any security or financial product.