Corporate Pension Plans Lost a Median 3.7% in the Third Quarter While Endowments Gained 0.7%, a 4.4-Point Gap Across 362 Large US Plans

Large US institutional plans split sharply by plan type in the quarter to 30 September 2026. Across 362 plans with combined assets of about $1.6 trillion, the median return for all plans was 0.04%. Within that, corporate pension (ERISA) plans lost a median 3.7%, public funds lost 0.1% and foundations and endowments gained 0.7%. That is a 4.4-point gap between the best and worst plan type in one quarter, our arithmetic. Two of the three plan types lost money, which is 67% by count.

What drove the split

The Federal Reserve raised the federal funds rate by 25 basis points in September to a range of 3.75% to 4.00%, and long-dated US Treasury yields reached levels not seen since the early 2000s. The median fixed income program returned negative 3.5% in the quarter, in line with the broad US bond benchmark at negative 3.5%. The median US equity program returned 1.0% against 2.3% for the S&P 500. Allocation did the rest. The median endowment holds 26% in private equity, 17% in US public equity and less than 10% in fixed income. The median public fund holds 29% in US equities and 22% in US fixed income. Across the whole universe, top-quartile plans hold more than 70% in fixed income and bottom-quartile plans less than 20%, so the median hides very different portfolios.

The longer view

The quarter is not a one-off for corporate plans. Over one year the medians are 11.1% for endowments, 9.3% for public funds and 1.8% for corporate plans, a spread of 9.3 points between the top and bottom, our arithmetic. Over three years they are 13.4%, 12.0% and 8.4%. Over five years they are 7.0%, 6.5% and 1.4%, a gap of 5.6 points between endowments and corporate plans.

How it connects to our other coverage

The pattern fits what we have reported elsewhere. US public pension funded ratios slipped to 87.4% in September, Norway's wealth fund lost 0.5% in the third quarter as bonds fell 3.5%, and Ivy League endowment returns spread over 10.5 points in fiscal 2026. Bond weakness hurt the quarter, while portfolios built around private equity and equities held up better.

What it means for GPs

This is our view, not a finding in the data. The plan type decides the conversation. An endowment with a 26% private equity median is a natural buyer of private markets exposure, while a corporate pension fund with a bond-heavy portfolio is likely to be focused on its liabilities and on rate risk. Public funds sit between the two. Before an approach, check which type your target is, and describe your fund's role in terms of the problem that plan type is solving. FundLinx members can filter limited partners by type and see who is allocating.

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