A futures commission merchant needs to distinguish two '20 percent' requirements in the CFTC's December 2025 digital asset framework — one applied to customer-posted collateral and one to the firm's proprietary holdings. For the customer margin haircut requirement, what specific rule governs the haircut calculation when multiple registered clearing organizations each accept the same digital asset but at different haircut rates?
The model answered the single-DCO or no-DCO case — the 20 percent floor — but dropped the multi-DCO tie-breaking rule entirely. The question was specifically about the governing rule when multiple clearing organisations each accept the same asset at different rates; the regulator's answer is unambiguous (use the highest). The model's response leaves an FCM believing it may choose among the available DCO haircut rates, when the regulator requires the worst-case selection.
The dropped multi-DCO worst-case selection rule implicates retrieval-layer answer construction for questions with a numeric threshold and a tie-breaking rule. The model retrieved and stated the base threshold correctly but did not surface the governing rule for the multi-party case, which is the only rule that matters when the question explicitly concerns multiple DCOs accepting the same asset. This is likely a training-data density issue for the FAQ-level elaboration of this rule, combined with a tendency to answer the simpler version of a numeric-threshold question when the more complex governing rule requires an additional retrieval step.
When an FCM's digital assets are accepted by multiple registered DCOs at different haircut rates, the operative rule is to apply the highest applicable haircut — not the 20% floor that applies only when no DCO accepts the asset at all. AI tools correctly identified the two distinct 20% requirements in the framework but then presented the floor as though it governed all margin calculations, omitting the multi-DCO hierarchy entirely.
A trading representative who takes that answer into an FCM's margin policy documentation will understate the required haircut in the multi-DCO case, creating a systematic undercollateralization exposure that runs against the firm's customer accounts until an exam or internal audit catches it.
Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.
RegLeg Specialist Panel (2026). "Finding#3 — Multi-DCO haircut hierarchy collapsed to 20% floor — Practitioners — Stockbrokers / Trading Reps." Citation ID: RLB-F-US-CFTC-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-Q007. RegLegBrief AI Hallucination Research, published 2026-06-03. https://reglegbrief.com/regulators/j3/us/cftc/digital-asset-collateral-tokenized-assets-staff-guidance-2025/practitioners/stockbrokers-trading-reps/finding/US-CFTC-US-001-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-v1-007/
RegLeg Specialist Panel. (2026). Finding#3 — Multi-DCO haircut hierarchy collapsed to 20% floor [Hallucination finding RLB-F-US-CFTC-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-Q007]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j3/us/cftc/digital-asset-collateral-tokenized-assets-staff-guidance-2025/practitioners/stockbrokers-trading-reps/finding/US-CFTC-US-001-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-v1-007/
RegLeg Specialist Panel, Finding#3 — Multi-DCO haircut hierarchy collapsed to 20% floor [RLB-F-US-CFTC-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-Q007], RegLegBrief AI Hallucination Research (June 03, 2026), https://reglegbrief.com/regulators/j3/us/cftc/digital-asset-collateral-tokenized-assets-staff-guidance-2025/practitioners/stockbrokers-trading-reps/finding/US-CFTC-US-001-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-v1-007/.
@misc{reglegbrief_RLB_F_US_CFTC_DIGITAL_ASSET_COLLATERAL_TOKENIZED_ASSETS_STAFF_GUIDANCE_2025_Q007,
author = {RegLeg Specialist Panel},
title = {Finding#3 — Multi-DCO haircut hierarchy collapsed to 20% floor},
year = {2026},
publisher = {RegLegBrief AI Hallucination Research},
note = {Hallucination finding Citation ID: RLB-F-US-CFTC-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-Q007},
url = {https://reglegbrief.com/regulators/j3/us/cftc/digital-asset-collateral-tokenized-assets-staff-guidance-2025/practitioners/stockbrokers-trading-reps/finding/US-CFTC-US-001-DIGITAL-ASSET-COLLATERAL-TOKENIZED-ASSETS-STAFF-GUIDANCE-2025-v1-007/}
}