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← Active investing collectively drags down portfolio returns, and the evidence leaves almost no counter-argument.
14 connected korrents · 10 moments on record from 11 Jan 2021 to 2 Sept 2026.
Everything filed under stock market
stock market
Everything filed under value investing
value investing
Everything filed under market efficiency
market efficiency
Everything filed under America
America
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Read this korrent: Active investing collectively drags down portfolio returns, and the evidence leaves almost no counter-argument.
Active investing collectively drags down portfolio returns, and the evidence leaves almost no counter-argument.
Last stated 3 months ago
18 Jun 2026
AD
Aswath Damodaran — holds since 2026-06-18 — tap for who they are
Same subject: The claim that passive investing has made markets less efficient is overwrought. — tap to centre the map on it
The claim that passive investing has made markets less efficient is overwrought.
Last stated 3 months ago
18 Jun 2026
AD
Aswath Damodaran — holds since 2026-06-18 — tap for who they are
Same subject: Most active investors are not hunting for information; they are betting on mean reversion in data everyone already has. — tap to centre the map on it
Most active investors are not hunting for information; they are betting on mean reversion in data everyone already has.
Last stated 3 months ago
18 Jun 2026
AD
Aswath Damodaran — holds since 2026-06-18 — tap for who they are
Same subject: Even the most advanced AI cannot be followed blindly in investing, where value added is zero-sum and what is widely known is therefore worth little. — tap to centre the map on it
Even the most advanced AI cannot be followed blindly in investing, where value added is zero-sum and what is widely known is therefore worth little.
Last stated 3 months ago
10 Jun 2026
RD
Ray Dalio — holds since 2026-06-10 — tap for who they are
Same subject: The value-versus-growth distinction does not serve investors well in a fast-changing world. — tap to centre the map on it
The value-versus-growth distinction does not serve investors well in a fast-changing world.
Last stated 6 years ago
11 Jan 2021
HM
Howard Marks — holds since 2021-01-11 — tap for who they are
Same subject: The worry that AI's returns are locked away in private companies is overstated: well under a fifth of American market capitalisation is private. — tap to centre the map on it
The worry that AI's returns are locked away in private companies is overstated: well under a fifth of American market capitalisation is private.
Last stated 3 months ago
4 Jun 2026
PT
Phil Trammell — holds since 2026-06-04 — tap for who they are
Same subject: Refusing to commit is the right strategy inside a portfolio and the wrong one everywhere else in life. — tap to centre the map on it
Refusing to commit is the right strategy inside a portfolio and the wrong one everywhere else in life.
Last stated a month ago
28 Jul 2026
NM
Nick Maggiulli — holds since 2026-07-28 — tap for who they are
Same subject: About a dozen holdings captures nearly all the benefit of diversification; going to fifty adds almost nothing. — tap to centre the map on it
About a dozen holdings captures nearly all the benefit of diversification; going to fifty adds almost nothing.
Last stated 3 years ago
20 Feb 2024
BA
Bill Ackman — holds since 2024-02-20 — tap for who they are
Same subject: The pull of fundamentals that used to reverse market momentum has weakened, so betting on mean reversion is more dangerous than it was. — tap to centre the map on it
The pull of fundamentals that used to reverse market momentum has weakened, so betting on mean reversion is more dangerous than it was.
Last stated 5 days ago
2 Sept 2026
AD
Aswath Damodaran — holds since 2026-09-02 — tap for who they are
Same subject: A portfolio you cannot hold through an ordinary market cycle is not a portfolio but a bet. — tap to centre the map on it
A portfolio you cannot hold through an ordinary market cycle is not a portfolio but a bet.
Last stated 2 weeks ago
25 Aug 2026
NM
Nick Maggiulli — holds since 2026-08-25 — tap for who they are
Same subject: Readily measurable indicators of cheapness are no longer sufficient on their own to produce a sustainable investing edge. — tap to centre the map on it
Readily measurable indicators of cheapness are no longer sufficient on their own to produce a sustainable investing edge.
Last stated 6 years ago
11 Jan 2021
HM
Howard Marks — holds since 2021-01-11 — tap for who they are
Same subject: The S&P 500’s price-to-sales ratio no longer signals what it once did, because today’s companies earn higher margins. — tap to centre the map on it
The S&P 500’s price-to-sales ratio no longer signals what it once did, because today’s companies earn higher margins.
Last stated 2 weeks ago
25 Aug 2026
NM
Nick Maggiulli — holds since 2026-08-25 — tap for who they are
Same subject: Almost all of the dot-com era's exuberance turned out to be warranted; we remember the failures and forget the value that era created. — tap to centre the map on it
Almost all of the dot-com era's exuberance turned out to be warranted; we remember the failures and forget the value that era created.
Last stated a year ago
18 Aug 2025
BT
Bret Taylor — holds since 2025-08-18 — tap for who they are
Same subject: Almost no mutual fund earns the fees it charges, so most investors are better off buying an index fund. — tap to centre the map on it
Almost no mutual fund earns the fees it charges, so most investors are better off buying an index fund.
Last stated 3 years ago
20 Feb 2024
BA
Bill Ackman — holds since 2024-02-20 — tap for who they are
Same subject: An investor's starting point should be the portfolio that is best to hold independent of any tactical market view — tap to centre the map on it
An investor's starting point should be the portfolio that is best to hold independent of any tactical market view
Last stated 2 weeks ago
25 Aug 2026
RD
Ray Dalio — holds since 2026-02-19 — tap for who they are
NM
Nick Maggiulli — holds since 2026-08-25 — tap for who they are
same subject or similar wording a cloud: claims about one subject, named for it bar: when it was last stated, on a scale from 2015 to today — full is today a face: someone on record holding the claim — tap it for who they are