01 — The baseline
Running short is normal. It happens to more than a third of schools.
Across 1,874 school-years at comparison independent schools, 36.9% ended in a true operating deficit. Not a tuition gap. An actual shortfall after everything was counted.
That is the number to hold onto. Whatever follows has to be judged against a field where running short is a normal event, not a scandal.
02 — Barely a gap
Non-Orthodox Jewish schools sit close to the field.
They run short in 42.6% of years. Six points above the comparison group. Noticeable, and not on its own alarming.
If the closure record were tracking financial condition, this is where the alarm should be loudest. It isn't.
03 — The outlier
Orthodox day schools run short two years in three.
65.2% of observed school-years ended in an operating deficit. The average Orthodox school-year in this sample was in deficit, not merely at break-even.
These are the schools generally described as holding their enrollment while others struggle. On this measure they are the furthest from stable in the dataset.
04 — Incidence is the wrong question
One bad year is an event. Every year is a condition.
So the measure changes. Among schools observed for two or more years, how many were in deficit every single year?
Comparison schools, 13.2%. Non-Orthodox, 18.0%. Orthodox, 42.9% — and not one Orthodox school in that subsample had a clean record.
05 — The measure that matters
Now ask what is behind the shortfall.
This is the household question. A deficit is survivable if there is a reserve to draw on, and something else entirely if there isn't. So among schools actually running a deficit, how many months of expenses does the endowment cover?
Comparison schools hold about 5.2 months. Non-Orthodox schools hold 6.6.
06 — Nineteen days
The Orthodox median is measured in weeks.
Roughly 19 days of operating expenses. And across the deficit-years with usable data, the share where a school drew enough from endowment to cover that year's shortfall was zero.
Comparison schools did so in 17.8% of their deficit-years. Non-Orthodox schools in 30.2%. The mechanism the rest of the sector uses to absorb a bad year is, in this segment, essentially absent.
07 — Holding the obvious constant
It isn't that they're small, or southern, or unlucky.
Small schools run deficits more often. Regions differ. Some years are worse than others. A statistical model can hold those constant — comparing schools of similar size, in similar places, in the same year — so that what is left is the difference associated with being an Orthodox day school in particular.
Even with size, region and year held constant, Orthodox schools carry roughly 3.3 to 4.1 times the odds of running a deficit. Two different model types agree, and both clear the significance bar.
