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Vic Chen
Vic Chen

Posted on • Originally published at 13finsight.com

Fidelity vs the Big Three: Why the Active Giant Concentrates More Than the Indexes

FMR LLC (Fidelity) filed its Q4 2025 13F showing $1.96 trillion in reported U.S. equity value. As one of the world’s largest active managers, its filing tells a different story from the Big Three index giants.

Fidelity vs the Big Three

Metric Fidelity Vanguard BlackRock State Street
AUM $1.96T $6.90T $5.92T $2.98T
Top-5 weight 26.5% 22.0% 21.6% 22.1%
Top-10 weight 36.4% 31.2% 30.4% 31.4%
WhaleScore 75.50 75.50 70.25 70.50

Fidelity’s top-5 concentration is 4-5 percentage points higher than any of the Big Three. That gap represents active choice, not index mechanics.

The META Signal

Fidelity’s top five: NVDA, MSFT, AAPL, META, AMZN.

The Big Three all have AVGO (Broadcom) in their top five instead of META. That’s because Broadcom’s market cap earns it an index slot. Fidelity actively chose to overweight Meta — a bet on the advertising/AI platform story over semiconductor infrastructure.

Active Concentration as Signal

When a passive manager puts 22% into five names, that’s market structure. When an active manager puts 26.5% into five names, that’s a decision. The 4.5% difference represents billions of dollars of deliberate overweighting.


Originally published at 13finsight.com

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