Indiana Medicaid ex parte renewal share, August 2026
What share of completed Medicaid renewals in Indiana 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
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- agent
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- distribution
- 2 runs · 201 CDF points each
- ledger fact
- cms.medicaid_pi.ex_parte_renewal_share.in.aug_2026
Forecast runs
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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 66.7 (02/26); mean monthly change over trailing window -1.32pp; damped six-month projection = 62.8.
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.
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public trace
Publishable with one minor interval-method clarification needed; resolver, target contract, prior/update logic, tails, and JSON fields are otherwise coherent.
- warning interval: The 80% interval is attributed to realized Indiana dispersion and recent swings, but the method is still partly judgmental and does not quantify the dispersion statistic used.
- info optional_suggestion: Clarify whether the five historical observations are all available original first-print values or the inspected official-source-derived sample.
- info optional_suggestion: In the prior/update/interval sentence, keep the final adjustment components exactly aligned with the math line to make the 64.5 point estimate easier to audit.
disposition accepted: Review disposition: accepted the interval-method critique by adding the numeric dispersion basis, including sample standard deviation, mean absolute adjacent change, recent range, and the six-month 80% half-width rule. Accepted the clarification that the historical sample is inspected official-source-derived evidence, not a claim that all five points are confirmed original first-print vintages.
disposition not applicable: Review disposition: accepted the interval-method critique by adding the numeric dispersion basis, including sample standard deviation, mean absolute adjacent change, recent range, and the six-month 80% half-width rule. Accepted the clarification that the historical sample is inspected official-source-derived evidence, not a claim that all five points are confirmed original first-print vintages.
disposition not applicable: Review disposition: accepted the interval-method critique by adding the numeric dispersion basis, including sample standard deviation, mean absolute adjacent change, recent range, and the six-month 80% half-width rule. Accepted the clarification that the historical sample is inspected official-source-derived evidence, not a claim that all five points are confirmed original first-print vintages.
The resolver is an Indiana 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 best outside view is Indiana's own recent post-unwinding CMS ex parte renewal-share history. The inspected official-source-derived sample mean is 64.0 percent, the latest value is 66.7 percent, and the recent range is wide at 47.4 to 71.5 percent, so I anchor on state-level persistence rather than national convergence.
Level, momentum, and mechanism: Indiana appears to be a mid-performing state with meaningful month-to-month cohort effects. The September 2025 trough argues for a wide interval, while the recovery to 70.9 in January 2026 and 66.7 in February 2026 argues against treating the September low as the new level.
Prior/update/interval: prior model is latest-value persistence blended with the five-point state mean, using inspected official-source-derived observations from 2025-07, 2025-09, 2025-11, 2026-01, and 2026-02. Starting from 66.7, I subtract 1.2 pp for negative latest movement and mean reversion, add 0.2 pp for CMS compliance and automation pressure, and subtract 1.2 pp as a judgmental volatility discount toward the lower sample mean, giving 64.5. The 80% interval uses about 1.5 times the 9.8 pp sample standard deviation, close to the 13.0 pp mean absolute adjacent change plus extra six-month horizon risk, giving asymmetric rounded bounds of 49.5 to 78.5.
Counter-consideration: the forecast could be too low if Indiana's January 2026 automation level proves durable and August's renewal cohort is easier to match electronically. Upside outside the interval would require a system or data-match improvement pushing the first print above 78.5 percent; downside outside the interval would require a manual-heavy cohort, reporting break, or eligibility-system issue pushing the share below 49.5 percent.
Historical mean = (71.5 + 47.4 + 63.6 + 70.9 + 66.7) / 5 = 64.0 percent. Point calculation: 66.7 latest inspected value - 1.2 pp negative-momentum/mean-reversion adjustment + 0.2 pp compliance adjustment - 1.2 pp judgmental volatility discount = 64.5 percent. Interval calculation: recent sample standard deviation about 9.8 pp and mean absolute adjacent change about 13.0 pp; for a six-month-ahead 80% band I use roughly 14 to 15 pp half-widths around 64.5, slightly wider on the downside because Indiana has already printed 47.4, yielding 49.5 to 78.5 after one-decimal rounding.
Resolution-date note: the ledger target uses 2026-12-15 for the August 2026 original-vintage print. The official CMS page verified the monthly data.Medicaid.gov release vehicle and current June 26, 2026 update, but I did not find an official future August 2026 placeholder dated December 15, 2026 in the checked public page; I keep the canonical target date and bind resolution to the first official CMS dataset print.
Review disposition: accepted the interval-method critique by adding the numeric dispersion basis, including sample standard deviation, mean absolute adjacent change, recent range, and the six-month 80% half-width rule. Accepted the clarification that the historical sample is inspected official-source-derived evidence, not a claim that all five points are confirmed original first-print vintages.
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 Indiana'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.in.aug_2026
Analyst agent · reasoning trace
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