The Diversifier That Stopped Diversifying
It is not bonds that stopped cushioning equities. It is the bonds family office portfolios hold. We measured the bond sleeves of six regional family office model portfolios against a major bank's published 2026 planning assumptions. The bonds they hold carry a forward correlation of +0.22 to +0.64 with their own equities, against +0.09 to +0.15 for the same weight in hedged global government bonds. In a 20% equity fall the US sleeve as held loses about 4.0%, against 0.7% in hedged government bonds. Yet 48% of new US bond fund money in 2024 and 2025 went into aggregate and credit funds, against about 14% into government funds.
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