Saturday, March 7, 2026

Frankenstein’s index fund – CFA Institute Enterprising Investor

Frankenstein’s index fund – CFA Institute Enterprising Investor

Arthur Frankenstein didn’t begin to create a monster. He had the very best scientific intentions. He hoped to create a living being out of body parts. While Mary Shelley’s story has an impact, we learn that Frankenstein’s experiment ended badly.

A much less gruesome experiment began in Massachusetts in 1911. The first nationwide pension fund was created here within the United States. It turned out to be a far more successful experiment, but not with none unexpected consequences.

Today all 50 countries hold a minimum of one nationwide pension plan. All as much as five have several nationwide plans. And then there are all plans of the town and the district. Jurisdiction with several pension plans are the topic of this contribution.

Diversification is a cardinal principle of prudent pension fund management. The principle is written in all places within the trust law. The public plan faithowers were conscientious of their efforts to diversify investments. Without exception, they create a wealth distribution plan for diversification between asset classes. You hire several investment managers. You use index funds. Your returns on broad market indices. For example, my studies show that on average large public fund returns have one 2 of 98% with those of the market. Public pension funds are diversified as much as the degree.

Diversification gone

Here things get sticky. Large public funds use a median of greater than 150 asset managers.[1] A bid of efficient portfolio management is that the investor uses lively managers to diversify, which may be carried out less expensive with index funds. The setting of scads from managers is pricey. I assume that public pension funds, with their average allocation of 35% on expensive alternative systems and 20% or less in index funds, arise in investment costs of 100 to 150 basis points per 12 months. And below average the market indices for an analogous amount. Trustee receive their diversification, yes – but with sad inefficiency.[2]

The monster we built

Things worsen if there are several pension funds in a single jurisdiction. This results in a redundancy that corresponds to the de facto consolidation of all individual funds, as that is the consequences on taxpayers. Consider a taxpayer in Los Angeles. Their taxation is influenced by the performance of three city pension funds, a County Fund and three nationwide funds. The consolidated fund comprises greater than 1,000 actively managed portfolios with countless individual positions. The losers of a portfolio compare the winners of one other. Investment betting of the a whole lot cancel one another. The result’s an unholy index fund that summarizes without intentional and results in a monster inefficient diversification.

In the United States there are 5 trillion dollars of publicly defined performance. I appreciate that public plans to waste 50 billion US dollars a 12 months through inefficient diversification. The waste contributes to the large burden on the financing of public pension plans, which ultimately falls on taxpayers.

What is the answer? Some states like Minnesota have a state investment committee. Although Minnesota has several nationwide pension plans, their assets are summarized for the aim of the investment. This is a step in the proper direction. As already mentioned, the person pension funds are tended to be diversified inefficient, in order that there is no such thing as a certainty that the easy bundling plan achieves the specified result. And state investment committees often do the local funds.

A safer alternative is to index public pension assets. Jumbo size, state-run pension funds that work in a political goldfish bowl are missing as investors comparative benefits. Passive investments that invest almost no costs transforms the sport into one by which public funds may be consistent winners.

Key Takeaways

Public pension plans can use index funds or market benchmarks to follow, but in point of fact:

  • They still employed a whole lot of lively managers
  • Make expensive alternative investments
  • End with aggregated portfolios that reflect the market, but an excessive amount of higher costs

[1] See Aubry, JP and K. Wandrei. 2020. “Internal vs. external management for state and local pension plans.” Center for Retirement Research, Boston College.

[2] See Ennis, RM 2025. “The decline of alternative investments.” (shortly). https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5163511.

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