Key Takeaways
- • CalSTRS' $400 billion portfolio derives 79% of total risk from combined public and private equities, with public equity alone accounting for 63% of portfolio risk despite representing only 41% of assets under management.
- • The fund maintains pronounced domestic concentration, with 75.4% of portfolio exposure to U.S. markets as of March 31, 2026, concentrated heavily in technology sector mega-caps including Nvidia (1.7%), Apple (1.5%), Alphabet (1.2%), and Microsoft (1.1%).
- • U.S. government fixed income represents CalSTRS' largest single exposure at 10.4% of the total fund, while treasury and government bonds dominate fixed income holdings at 56.5% of that asset class.
- • BlackRock's Aladdin risk management system flags a material gap between public equity's 41% asset weight and its 63% risk contribution, signaling concentration risk in technology equities requires active monitoring.
- • Active risk remains within CalSTRS' approved governance ranges, and the system maintains strong liquidity positioning and leverage flexibility across real estate holdings to respond to market volatility.
Summary
CalSTRS' latest portfolio review reveals concentrated risk exposure in equity markets despite the $400 billion fund's substantial diversification across asset classes. According to Board of Trustees materials, public and private equities combined represent 79% of total portfolio risk. This concentration is particularly acute in public equities, which generate 63% of total portfolio risk while comprising only 41% of assets—a significant disparity that underscores the outsized volatility contribution of equity holdings relative to their asset allocation weight.
The fund's geographic footprint is heavily tilted toward domestic markets, with 75.4% of the portfolio invested in U.S. securities as of March 31, 2026. International exposure is marginal by comparison, with Japan representing the second-largest exposure at 2.3%, followed by the United Kingdom (1.8%), Canada (1.5%), China (1.1%), and France and Taiwan (1.0% each). This domestic concentration amplifies U.S. market dependency.
Technology sector mega-capitalization stocks dominate CalSTRS' equity holdings. The "Magnificent Seven" technology stocks comprise the bulk of the fund's top 10 exposures: Nvidia (1.7%), Apple (1.5%), Alphabet (1.2%), Microsoft (1.1%), Amazon (0.8%), Meta Platforms (0.5%), and Tesla (0.4%). Combined with the largest single exposure of U.S. government fixed income (10.4%), these concentrated positions reflect CalSTRS' structural positioning in growth-oriented assets and sovereign debt.
Fixed income exposure centers on U.S. government obligations, which account for 56.5% of the fund's fixed income allocation. Financial sector concentration is modest, with Morgan Stanley and Bank of America each representing 0.5% of total portfolio fixed income exposure, followed by Citigroup and Goldman Sachs at 0.4% each. The fund's risk team utilizes BlackRock's Aladdin platform to monitor portfolio risk in real-time across the total plan structure.
Despite the elevated concentration in equities and domestic markets, CalSTRS reports that active risk remains within approved governance ranges, and the fund maintains strong liquidity positioning and real estate leverage flexibility. These risk management frameworks appear designed to provide the portfolio sufficient optionality to respond to economic volatility while maintaining its strategic asset allocation targets.
The fund's geographic footprint is heavily tilted toward domestic markets, with 75.4% of the portfolio invested in U.S. securities as of March 31, 2026. International exposure is marginal by comparison, with Japan representing the second-largest exposure at 2.3%, followed by the United Kingdom (1.8%), Canada (1.5%), China (1.1%), and France and Taiwan (1.0% each). This domestic concentration amplifies U.S. market dependency.
Technology sector mega-capitalization stocks dominate CalSTRS' equity holdings. The "Magnificent Seven" technology stocks comprise the bulk of the fund's top 10 exposures: Nvidia (1.7%), Apple (1.5%), Alphabet (1.2%), Microsoft (1.1%), Amazon (0.8%), Meta Platforms (0.5%), and Tesla (0.4%). Combined with the largest single exposure of U.S. government fixed income (10.4%), these concentrated positions reflect CalSTRS' structural positioning in growth-oriented assets and sovereign debt.
Fixed income exposure centers on U.S. government obligations, which account for 56.5% of the fund's fixed income allocation. Financial sector concentration is modest, with Morgan Stanley and Bank of America each representing 0.5% of total portfolio fixed income exposure, followed by Citigroup and Goldman Sachs at 0.4% each. The fund's risk team utilizes BlackRock's Aladdin platform to monitor portfolio risk in real-time across the total plan structure.
Despite the elevated concentration in equities and domestic markets, CalSTRS reports that active risk remains within approved governance ranges, and the fund maintains strong liquidity positioning and real estate leverage flexibility. These risk management frameworks appear designed to provide the portfolio sufficient optionality to respond to economic volatility while maintaining its strategic asset allocation targets.
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