A manager can buy more shares and still show a lower portfolio weight, or cut shares while a position looks bigger. This guide explains how to read both signals together.
ARK's Q4 2025 13F reveals a $15.07B portfolio where Tesla commands 8.7% and NVIDIA sits at just 1.6%. After an AUM trough of $7.09B in Q1 2025, the fund has doubled back to $15B — and the innovation thesis hasn't budged.
Dodge & Cox closed 2025Q4 with $185.26B across 222 positions and a 74.75 WhaleScore, pairing steady scale with broad value-style exposure across financials, healthcare, and energy.
Optiver Holding B.V.’s Q4 2025 filing shows $268.81B in 13F AUM and a 61.58% top-5 concentration anchored by index-linked exposure, offering a high-conviction read on market-making inventory structure.
BNP PARIBAS FINANCIAL MARKETS reported $220.69B in Q4 2025 and a sharp +17.8% QoQ AUM increase, combining large megacap positions with a significant non-standard top holding.
Swiss National Bank reported $168.01B in Q4 2025 with NVDA, AAPL, and MSFT as the top three holdings. The filing shows persistent U.S. mega-cap concentration despite slight quarter-over-quarter AUM cooling.
AMERICAN CENTURY COMPANIES INC reported $198.97B in Q4 2025, led by an $11.81B NVIDIA stake, while keeping top-10 concentration at 33.4% across a 500-position portfolio.
Jennison Associates finished Q4 2025 at $166.57B, led by NVDA at $14.56B. With top-10 concentration at 47.6%, the filing shows high-conviction mega-cap growth positioning with selective breadth.
Neuberger Berman Group LLC reported $134.34B in Q4 2025 with only 17.5% in its top five holdings, highlighting a broad allocation model instead of concentrated single-name risk.