CRYPTOPRU.COM · The Concentration Number

Scope gate

Does CRYPTOPRU 5 apply to the firm?

CRYPTOPRU 5 applies to a firm that enters into a trading book transaction involving a qualifying cryptoasset CRYPTOPRU 5.1.1R. It contains no calculation of its own: it applies MIFIDPRU 5.4–5.10 with modifications CRYPTOPRU 5.1.2G–5.1.4R. A firm with no such trading book is outside the chapter and K-CON is nil.

The firm enters into trading book transactions in qualifying cryptoassets
Untick if the firm holds no trading book in qualifying cryptoassets — the tool will state the nil result and stop.

Firm inputs

Own funds and regime status

The soft limit, the tranche bands and both hard limits are all expressed against the firm's own funds — eligible own funds after deductions COREPRU 3.2.2R. Arrive from The Capital Number and the figure is filled in; otherwise use your COREPRU 3 workings. Inputs are kept in this browser only, until Reset; nothing typed here is sent anywhere.

Own funds (£) COREPRU 3.2.2R

The firm is also a MIFIDPRU investment firm
A dual firm calculates a single soft limit per client or connected group, summing its MIFIDPRU 5.4.1R exposures, its K-CCD exposures and its issuer-linked cryptoasset positions CRYPTOPRU 5.1.2G, 5.1.3R. Enter the MIFIDPRU legs from your MIFIDPRU calculation.

Exposures

Counterparties and connected groups

One row per client or group of connected clients — the grouping is your judgement, not the tool's (see Method & gaps). Each row aggregates that group's three exposure legs: net long trading-book positions in qualifying cryptoassets issued by, or whose supply is controlled by, the client CRYPTOPRU 5.1.4R(2); amounts due under K-CCD transactions CRYPTOPRU 4.10.5R–4.10.6R; and (dual firms) the MIFIDPRU exposure value MIFIDPRU 5.4.1R.

Client / connected group	Counterparty type 4.10.11R	Eligible instn 5.5.1R(2)	Net long positions £ 5.1.4R(2)	K-CCD amount due £ 4.10.6R	Due-asset type	Collateral £	Collateral type 4.10.9R	MIFIDPRU EV £	MIFIDPRU OFR £	Days excess persisted 5.9.2R(3)

Calculation

K-CON per group, and in total

Soft limit = 25% of own funds per group MIFIDPRU 5.5.1R(1) (eligible institutions: the higher of 25% and the lower of £150m / 100% of own funds 5.5.1R(2)). The requirement on the excess (EVE): OFRE × 200% while the excess has persisted 10 business days or fewer; beyond that, the EVE is apportioned across tranches of own funds and each portion carries its factor MIFIDPRU 5.7.4R as cross-applied by CRYPTOPRU 5.1.3R/5.1.4R.

Group	EV	Soft limit	EVE (excess)	OFRE	Factor	K-CON	Status
Total K-CON						£0

K-CON — the concentration risk own funds requirement CRYPTOPRU 5; the eighth part of the K-factor requirement, CRYPTOPRU 4.3.1R(8)£0

Reopens The Capital Number with your figures and this K-CON total in the K-factor requirement.

Limits

The hard limits

While an excess has persisted for 10 business days or fewer, the group's EV must not exceed 500% of own funds MIFIDPRU 5.9.1R(1). The aggregate of all EVEs for excesses persisting more than 10 business days must not exceed 600% of own funds, connected or not MIFIDPRU 5.9.1R(2), 5.9.2R(2). The 10-day period runs from the start of the business day the excess occurred 5.9.2R(3).

500% cap (£)

£0

Worst EV ≤10 days

£0

600% aggregate cap (£)

£0

Aggregate EVE >10 days

£0

Regulatory consequence

Notifications

Exceeding the soft limit, and breaching a hard limit, each carry their own FCA notification using MIFIDPRU 5 Annex 1, submitted through the online notification system.

No exposures currently exceed the soft limit — no K-CON notification is due on these inputs.

Honesty box

Method notes and stated limits

Connected clients are your judgement. The tool takes each row as a settled client or connected group; it cannot derive connectedness. A group is aggregated and treated as a single undertaking CRYPTOPRU 5.1.3R(6).
"Issued by, or whose supply is controlled by, the client" is a factual determination the tool asks for, not one it makes — the same judgement that drives the COREPRU 3.3.39R connected-cryptoasset deduction.
OFRE is pro-rated. The own funds requirement for the exposure excess is computed as the group's exposure OFR × (EVE ÷ EV), mirroring the apportionment language of MIFIDPRU 5.7.4R(2). The group OFR sums 40% of net long positions CRYPTOPRU 4.9.18R, the K-CCD requirement (1.2 × EV × RF) CRYPTOPRU 4.10.6R, 4.10.11R and, for dual firms, the MIFIDPRU OFR you enter.
One aggregate K-CCD leg per group. Enter the group's amounts due and collateral in aggregate by asset type; a transaction-by-transaction schedule belongs in the Excel engine, not this page. A due asset that would be deductible in full takes its transaction out of K-CCD CRYPTOPRU 4.10.5R(2); the 100% adjustment applies to collateral only 4.10.5R(3).
The link to The Capital Number. Arriving from it fills in eligible own funds, the dual-firm answer and the scope gate, and pre-fills its aggregate K-CCD legs as one row to split; "Carry K-CON back" reopens it as you left it with this total in the K-factor requirement, together with the own funds it was computed on and the count of groups above the soft limit. The figures travel in the link itself; The Capital Number's state is not stored here.
Net positions are your netting output. Netting is permitted only across identical assets — identical rights, fungible with one another — and forwards count as spots CRYPTOPRU 4.9.8R, 4.9.15R–4.9.16G. Enter the netted figure.
Dual firms: the MIFIDPRU EV and OFR legs come from your MIFIDPRU calculation; this tool applies the single-limit mechanics CRYPTOPRU 5.1.2G but does not recompute K-NPR or K-TCD.
Citation basis: MIFIDPRU figures were verified unchanged against the May 2026 Handbook edition on 17 Aug 2026; page-anchored citations in the underlying register sit against the Release 18 export (VI-12-016). The trading-book scope reading carries the product owner's confirmation point at VI-12-007.
Not advice. An indicative calculator for firms preparing for the regime commencing 25 October 2027. The instruments govern.

Source discipline

Citation register

Every constant in this page, pinned to the made instruments. Citation spine: PS26/12 (FCA 2026/45, COREPRU/CRYPTOPRU); MIFIDPRU as cross-applied, verified against the May 2026 edition.

Full register (constant → value → anchor → status)

Assurance

Engine self-test

Acceptance tests run in this page on load: the FCA's own K-CCD worked example (£2.688 — CRYPTOPRU 4.10.13G) plus hand-verified soft-limit, tranche, eligible-institution and hard-limit cases. If any test fails, do not rely on the outputs.

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