One Case Just Moved Your Month. The Climate Did Not Move.
Every plan has lived this meeting: a single seven-figure case lands, the month blows out, and the room starts managing the name. Six things from building an instrument for the members where the money concentrates.
1. Concentration is the physics, not the anomaly. The top 1% of members carry roughly a fifth of spend; the top 5% carry about half. This is one of the most stable findings in health economics — which means a month with a million-dollar case is not a surprise; it is a scheduled event with an unscheduled date.
2. Price the case in PMPM and the panic gets honest. A $900,000 case on a 10,000-member book is $7.50 per member per month. Real money — and exactly the size of arithmetic a leadership meeting can hold calmly instead of reorganizing the company around one name. The names are weather. The load is climate. Manage the climate.
3. Stop-loss is financing, never savings. The market runs near a loss ratio in the high eighties — you pay roughly a dollar to move somewhat more than a dollar of tail risk in a good year. Worth doing for the balance sheet; never bookable as cost reduction. A stop-loss line in a savings deck is a category error wearing a dollar sign.
4. Leveraged trend and the laser are where renewals bite. Claims above a fixed deductible grow faster than claims overall — that is deductible leverage, and it compounds quietly in every renewal. And the carrier who watched your book all year can laser the known cases at renewal: individual, higher deductibles on the exact members you hoped the coverage covered. The renewal is where last year's names become this year's terms.
5. The same catastrophe is financed opposite ways in MA and the ACA. Medicare Advantage risk adjustment is prospective — this year's diagnoses pay next year, so year one of a catastrophic case is naked. The ACA model is concurrent and its reinsurance program picks up a share of the very largest claims in-year. Two books, one event, opposite cash profiles — and forecasts that ignore the difference miss exactly when it matters.
6. High-cost members are where savings claims go to look brilliant. Pick last year's most expensive members, run any program, and watch them improve — regression to the mean guarantees it. The most decorated case studies in care management live in this population for that reason. Every claimed saving on high claimants has to clear the noise floor and a counterfactual first, or it is applause for arithmetic.
We built this as an instrument: the concentration math on your own book, per-case PMPM honesty, stop-loss economics with the leverage and the laser priced, and the MA/ACA financing split. Browser-only; nothing entered leaves the machine.
The names are weather; the load is climate — and a plan that manages names will be surprised annually, on schedule.
When the next seven-figure case lands, will your meeting price it in PMPM against the climate — or spend an hour on the weather?