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An innovator in index construction

TOBAM is a Paris-based asset management firm that has developed a mathematical definition of diversification. CalPERS and Amundi Asset Management are minority shareholders.

ETF Strategy:
Maximum Diversification
Paris/New York/Dublin

The TOBAM approach

Maximizing diversification through a patented quantitative process

TOBAM has created a mathematical definition of diversification that enables investors to avoid the portfolio concentrations that historically have impacted market cap-weighted indexes.

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Defines the investable universe
TOBAM applies liquidity, longevity, and socially responsible investment screens in determining the investable universe.

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Creates the “most diversified” portfolio
Using their proprietary Diversification Ratio®, TOBAM constructs a portfolio with equal and lowest possible correlation among individual holdings*.

*Subject to active share constraints.

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Seeks to neutrally allocate risk
The portfolio neutrally allocates risk to the effective independent sources of risk present in the market even if it has no position in a particular stock or sector.

Learn about TOBAM's maximum diversification index construction methodology.

Nationwide Maximum Diversification ETF

Diversification is one of the most widely accepted principles of investing. But investments that track market cap-weighted indexes may be less diversified than many investors realize.

The Nationwide Maximum Diversification ETF seeks to deliver higher risk-adjusted performance over the long term by pursuing a different approach to diversification.

MXDU Nationwide Maximum Diversification U.S. Core Equity ETF

ETF Strategy
Maximum Diversification


Index Provider

Maximum Diversification® USA Index

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