Hawaii Medicaid ex parte renewal share, August 2026
What share of completed Medicaid renewals in Hawaii will be processed on an ex parte basis in the August 2026 reporting period, per the CMS eligibility processing dataset?
Trend
history + forecaststatic prototype estimate · seeded forecast value
- record
- prototype seed
- agent
- prototype seed
- distribution
- 2 runs · 201 CDF points each
- ledger fact
- cms.medicaid_pi.ex_parte_renewal_share.hi.aug_2026
Forecast runs
same target · agents, packs, updatespublic trace
Ex parte share measures how much of the renewal burden the state carries instead of the beneficiary. It trends with data-matching infrastructure, which improves in vendor-release steps rather than smoothly.
Latest 70.5 (02/26); mean monthly change over trailing window -2.43pp; damped six-month projection = 63.2.
Half-weight trend continuation with volatility-scaled uncertainty; renewal cohorts differ month to month, so the interval is wider than the point trend alone would suggest.
Validated live Codex-backed thesis.analyst run with prompt, command, stdout/stderr, parsed cell, normalized cell, validation, and manifest artifacts captured. Prompt mode: fast. Pre-submit review artifacts captured.
public trace
The draft is publishable: it matches the ledger resolver, states a Hawaii-specific persistence prior, gives a compact update and interval rationale, and keeps the point, interval, and JSON fields coherent.
- info optional_suggestion: Clarify whether the five historical observations are the full available recent sample or a selected sparse inspection sample.
- info optional_suggestion: State that the 14 pp half-width is intended as an 80% interval half-width, since confidence is 0.8.
disposition not applicable: Review disposition: accepted the optional clarifications that the five observations are an inspected sparse recent sample and that the 14.0 percentage-point half-width is the intended 80% interval half-width; no required fixes were raised.
disposition not applicable: Review disposition: accepted the optional clarifications that the five observations are an inspected sparse recent sample and that the 14.0 percentage-point half-width is the intended 80% interval half-width; no required fixes were raised.
The resolver is a Hawaii state row, not a national weighted average: the original first-publication August 2026 reporting-period row in the CMS eligibility processing dataset. The target is the share of completed Medicaid renewals processed ex parte, reported in percent and rounded to one decimal.
Base-rate/reference class: the closest outside view is Hawaii's own recent CMS eligibility-processing history. The five inspected sparse observations average 80.7 percent, while the latest three average 78.4 percent and the latest value is 70.5 percent, so the prior is latest-value persistence with partial mean reversion rather than a straight extrapolation of the latest drop.
Level, momentum, and mechanism: the level is below Hawaii's recent average, and the latest move is negative. But the series has large renewal-cohort swings, including a rebound from 76.8 to 85.5 in late 2025, so I avoid carrying the full February weakness linearly into August.
Prior/update/interval: prior model is Hawaii latest-value persistence with partial mean reversion, using five inspected sparse observations from 2025-07, 2025-09, 2025-11, 2026-01, and 2026-02. Starting from latest inspected 70.5 percent, I subtract 3.0 pp for negative short-run momentum, add 0.5 pp for mean reversion toward the 78.4 percent latest-three average, and use 68.0 as the rounded point. The 80% interval uses a 14.0 pp half-width based on realized large first-print moves in this sparse sample, widened for the six-month horizon and cohort mix, giving 54.0 to 82.0.
Counter-consideration: the forecast could be too low if February was an unusually manual-heavy renewal cohort or if Hawaii's data matches normalize back toward the 2025 average. It could be too high if February revealed a durable system or policy-processing deterioration.
Historical mean = (91.4 + 76.8 + 85.5 + 79.3 + 70.5) / 5 = 80.7 percent; latest-three mean = (85.5 + 79.3 + 70.5) / 3 = 78.4 percent. Point calculation: 70.5 - 3.0 momentum adjustment + 0.5 mean-reversion adjustment = 68.0 percent. 80% interval calculation: center 68.0 with 14.0 pp half-width, yielding 54.0 to 82.0 after one-decimal-compatible rounding.
Outside-the-interval scenarios: below 54.0 would likely require a sustained eligibility-system or data-match disruption, a reporting-method break, or an unusually manual-heavy August renewal cohort. Above 82.0 would likely require a rebound to pre-February operating conditions or a cohort dominated by beneficiaries easy to renew through existing data matches.
Resolution-date note: the canonical ledger target uses 2026-12-15 for the August 2026 first print, tied to CMS's data.Medicaid.gov monthly release vehicle and the expected three-to-four-month lag. I did not independently fetch a separate future-dated CMS placeholder from the network in this sandbox, so I keep the ledger date and bind resolution to the first official CMS dataset print.
Review disposition: accepted the optional clarifications that the five observations are an inspected sparse recent sample and that the 14.0 percentage-point half-width is the intended 80% interval half-width; no required fixes were raised.
Key drivers
- Data-matching coverage across wage, SNAP, and vital records sources
- Eligibility system modernization and vendor release schedules
- Renewal cohort composition month to month
- CMS renewal-policy requirements and state compliance plans
Resolution
- source
- CMS, State Medicaid and CHIP Eligibility Processing Data (data.medicaid.gov)
- expected
- December 15, 2026
- rule
- Resolves to Hawaii's ex parte renewal share for the August 2026 reporting period, computed from the original (O) submission row in CMS dataset 5abea2e0-3f8e-4b49-a50d-d63d5fd9103c when CMS first publishes it (expected roughly three to four months after the period). Numerator and denominator as published; share computed to one decimal.
- Data point
- cms.medicaid_pi.ex_parte_renewal_share.hi.aug_2026
Analyst agent · reasoning trace
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