Apollo: The 60/40 Portfolio Is Dead
N.R. Finch
Apollo chief economist Torsten Sløk says the classic 60/40 portfolio has lost its effectiveness — the diversification logic behind it is breaking down, forcing investors to rethink how they build portfolios.
What is a 60/40 portfolio, and why has it been the gold standard?
The 60/40 portfolio — 60% stocks, 40% bonds — has been the default "balanced" allocation for decades, treated as the cornerstone of sensible investing.
The core assumption: when stocks fall, bonds tend to rise. The two move in opposite directions, offsetting each other and keeping the overall portfolio steady.
In plain terms = umbrella in one hand, sunglasses in the other — rain or shine, one of them works. That natural hedge is the whole bet.
Sløk says it's "broken" — what exactly went wrong?
Sløk identifies two fracture points: stock returns are now heavily concentrated in a handful of names, no longer tracking the broad economic cycle; and the negative correlation between stocks and bonds — one falls, the other rises — is disappearing.
This means → the umbrella and the sunglasses are starting to move together, and the foundation of diversification is gone.
This reflects a deeper shift: when a few mega-cap stocks dominate total market returns, "buying a basket of stocks" is no longer truly diversified.
What does this mean for the ordinary investor?
If your pension or fund still runs a 60/40 template, Sløk's conclusion is blunt: the framework faces a fundamental challenge, not one that fine-tuning can fix.
The next core question: whether investors need assets beyond stocks and bonds — alternatives, real assets — to rebuild portfolio structure from scratch.
In plain terms = the issue isn't "the umbrella broke, buy a new one." It's "the weather pattern changed — time to rethink the entire wardrobe."
Content is for reference only, not financial advice.