Endowment Spending Rate Rechner
Berechnen Sie annual endowment spending und whether your spending rate is sustainable against returns und inflation.
Annual Spending
$2,500,000
Annual Spending vs Annual Spending Rate
Formel
## How Endowment Spending Works Endowments are designed to provide perpetual funding. The spending rate must be low enough that investment returns preserve the real (inflation-adjusted) value of the endowment. ### Formula **Annual Spending = Endowment Value x Spending Rate** **Sustainable if Spending Rate <= Expected Return - Inflation** ### Common Practice - Most institutions spend 4-5% annually - The "Yale Model" suggests 5.25% with a diversified portfolio - Spending above the real return rate erodes the endowment over time
Lösungsbeispiel
A $50M endowment with 5% spending rate, 7% expected return, 3% inflation.
- 01Annual spending: $50M x 0.05 = $2,500,000
- 02Real return: 7% - 3% = 4%
- 03Spending (5%) > Real return (4%): Not sustainable long-term
- 04Net growth: $50M x (7 - 5 - 3)/100 = -$500,000 per year
Häufig Gestellte Fragen
What is a prudent spending rate?
The UPMIFA guidelines suggest spending 4-7% is presumptively prudent, but sustainability depends on investment returns and inflation.
Can a school spend more during emergencies?
Yes, boards can approve temporary higher spending, but should plan to return to sustainable levels within a defined period.
How are endowment returns measured?
Using total return (interest, dividends, and capital appreciation) on a rolling 3-year or 5-year average to smooth volatility.