William Marsh Rice University Portfolio Concentration: Analysis of Holdings as of June 30, 2026

As of June 30, 2026, the investment strategy employed by William Marsh Rice University is characterized by significant portfolio concentration. The total value held stands at $219,204,000.

The university's largest position is heavily weighted towards the Vanguard Index Fund (VOO), a widely recognized exchange-traded fund tracking the S&P 500 index. This holding accounts for 63.91% of the total portfolio value and represents 203,965 shares.

The second major position is Black Stone Minerals L P (BSM), a company operating in the Energy sector. BSM holds a substantial allocation of 36.09%, equivalent to 5,663,476 shares and valued at $79,118,760.

This portfolio structure indicates an investment focus primarily within large-cap US equities through VOO and the Energy sector via BSM. There are only two holdings in total (holding_count: 2), meaning that these two positions encompass the entire $219,204,000 portfolio.

The allocation breakdown reveals a clear dominance of the Vanguard Index Fund (VOO) at 63.91% and Black Stone Minerals L P (BSM) at 36.09%. This concentration is reflected in the sector allocation, where VOO's value falls under "Unknown" due to its index nature, while BSM contributes significantly to the Energy allocation.

Regarding changes from the previous period, there was a notable adjustment in the Vanguard Index Fund (VOO) position. The number of shares decreased by 21,949 units (-9.72%). This reduction is detailed within the portfolio's change metrics for VOO.

The Energy sector allocation remains unchanged at 36.09% due to no change in BSM shares, while the Vanguard Index Fund (VOO) allocation slightly decreased from its previous period value as noted by the share reduction.