In its latest SEC filing, First Citizens Bank & Trust Co. reported ownership of 49,191 shares of the Vanguard S&P 500 ETF (VOO) following a purchase of 1,886 additional shares during the third quarter. This increase represents a 4.0% boost in its position and brings the total value of its VOO holdings to approximately $30.12 million. VOO now accounts for 0.5% of the institution’s overall portfolio, making it the firm’s 23rd largest holding and signaling continued confidence in broad U.S. large-cap exposure.

TRB Advisors LP disclosed a 72.7% jump in its VOO position during the third quarter, acquiring 200,000 shares to reach a total of 475,000 shares. At the end of the period, the stake was valued at $290.88 million and represented 57.5% of the firm’s total assets under management, elevating VOO to its single largest holding. The dramatic increase underscores TRB’s strategic emphasis on low-cost S&P 500 tracking vehicles amid a market environment favoring passive index strategies.

Cullen Frost Bankers Inc. reduced its VOO stake by 834 shares in the third quarter, leaving it with 51,459 shares valued at approximately $31.51 million. The modest 1.6% reduction suggests a slight rebalancing rather than a directional view against the ETF. VOO remains a core component of the bank’s asset allocation, consistent with its preference for high-liquidity, benchmark-tracking equity instruments.

The recent institutional flows into VOO — including sizeable additions by First Citizens and TRB Advisors alongside only minor trimming by Cullen Frost — reflect strong appetite for S&P 500 exposure via low-cost ETF wrappers. With VOO’s steady inflows, its assets under management continue to grow, reinforcing its liquidity advantage. Investors may interpret these moves as validation of passive large-cap indexing, particularly given VOO’s market-leading scale and portfolio concentration aligned with the S&P 500 benchmark.