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Stock Market Volatility and Trustees’ Duties Under the California Prudent Investor Act 

by | May 1, 2025 | Trust and Probate Litigation, Trusts

Stock market volatility this year has frayed the nerves of anyone whose assets are in stocks or are otherwise influenced by the market. “Unless there’s some quick reversal on tariffs, the amount of disruption we’re seeing there, along with every other force being imposed on the economy right now, probably will drag us under in terms of putting us into recession,” JPMorgan Asset Management chief global strategist David Kelly told Yahoo Finance. Other analysts, however, point to softening of the president’s stance on some tariffs (which Wall Street liked), recent positive job numbers posted by the Department of Labor, and the Dow Jones Industrial Average’s 7,544-point increase over one year ago.  

Still, predicting stock market swings is challenging in the best of times. Regardless of market stability, though, trustees in California are required to ensure trust assets are invested carefully and managed closely to protect their value. These duties are spelled out in the Prudent Investor Rule contained in the California Prudent Investor Act which is codified in California Probate Code Sections 16045–16054.  

Below is a breakdown of the relevant sections of the Act:  

Section 16045 – Duty to Invest and Manage as a Prudent Investor; Scope of the Act. Trustees are required to invest and manage trust assets as a prudent investor would, considering the purposes, terms, distribution requirements, and other circumstances of the trust.  

Section 16046 – Standard of Care; Portfolio Strategy; Delegation. The standard of care in this section mandates that trustees exercise reasonable care, skill, and caution in investment decisions. It highlights the importance of a portfolio strategy that considers the risk and return objectives of the trust. Also, trustees are permitted to delegate investment and management functions, provided they exercise prudence in selecting agents and establishing the scope and terms of the delegation. 

Section 16047 – Prudent Investor Rule; Key Factors to Consider in Investment Decisions. The prudent investor rule requires trustees to consider several factors when making investment decisions. These include general economic conditions, the possible effect of inflation or deflation, tax consequences, the role of each investment within the overall portfolio, and the expected total return from income and appreciation. In the current climate, trustees will want to monitor the impact of global trade policies on trust investments.  

Section 16048 – Requirement to Diversify Investments. Trustees must diversify the trust’s investments unless they reasonably determine that, due to special circumstances, the purposes of the trust are better served without diversification. This requirement aims to minimize the risk of large losses by spreading investments across various asset classes. This approach is rooted in modern portfolio theory, which advocates for diversification and risk management to achieve optimal returns. Trustees are required to consider the trust’s purposes, terms, distribution requirements, and other circumstances when developing an investment strategy. If the portfolio is heavily concentrated in a few old stocks, talk to a professional estate planner and/or qualified financial advisor about whether selling some of the old stocks and reinvesting the proceeds into a mix of different asset classes is the wisest path or if you have other options.  

Section 16049 – Duty to Review Trust Assets and Bring Them into Compliance. Trustees must review trust assets and ensure they comply with the prudent investor rule. This involves assessing the current holdings and making necessary adjustments to align with the trust’s objectives and the prudent investor standards. 

Section 16050 – Loyalty to Beneficiaries in Investment Decisions. Trustees must act solely in the interest of the beneficiaries when making investment decisions, avoiding conflicts of interest and ensuring that their actions benefit the trust. 

Section 16051 – Duty to Monitor and Report; Annual Accounting Requirements. Trustees are required to monitor the trust’s investments and report on their status regularly. They must provide annual accounting to the beneficiaries, ensuring transparency and accountability in the management of trust assets. 

Section 16052 – Delegation of Investment and Management Functions. Trustees may delegate investment and management functions to agents, provided they exercise prudence in selecting, instructing, and monitoring these agents. This delegation must be consistent with the purposes and terms of the trust. 

Section 16053 – Trustee’s Liability When Following Prudent Investor Rule. Trustees are protected from liability when they follow the prudent investor rule, i.e., they are not to be held liable for losses resulting from investments if they were prudent choices. This is important protection for trustees. Frustrated beneficiaries may fault a trustee for not anticipating an economic downturn and a corresponding fall in the value of their inheritance. 

Section 16054 – Application and Interpretation of the Act. This section addresses the application and interpretation of the Act, ensuring that trustees understand their fiduciary duties and responsibilities.   

Common Mistakes  

Here are a few ways in which trustees can run afoul of the standards set out in the California Prudent Investor Act and other laws.  

Trustees can face liability for failing to:  

Understand their Fiduciary Duties. Trustees must comprehend the trust document, the wishes of the trust creator, and the legal obligations associated with their position. California law imposes a range of fiduciary duties, including loyalty, care, impartiality, and confidentiality. 

Put the Trust First.  Engaging in transactions that benefit the trustee personally, rather than the trust, is strictly prohibited. Self-dealing is illegal.  

Collect Asset Information. Trustees should determine the nature, extent, and title of the settlor’s assets as soon as possible to recognize potential uncertainties early in the administration.  

Diversify. Placing investments in a single company or industry, for example, can put assets at risk. With some exceptions, the law requires a balanced investment portfolio approach.  

Pay Attention. If a trustee does not monitor the investments, they will not be able to make necessary adjustments to protect the assets.  

Keep Good Records. Trustees are required to maintain accurate and detailed records of all transactions and decisions related to the estate or trust. Failure to do so can trigger legal action 

Delegate Responsibly. Trustees must exercise reasonable care, skill, and caution in investment decisions and avoid delegating responsibilities to unqualified individuals. 

Meet Legal Obligations. Overlooking required notifications, failing to follow the terms of the trust, or mismanaging disputes among beneficiaries can expose trustees to lawsuits or removal. 

Manage Finances Properly. As examples, do not combine trust assets with personal assets and do not miss important tax deadlines.  

Communicate. Effective communication with beneficiaries is essential to avoiding disputes and mistrust. 

Consequences 

If a trustee violates the Prudent Investor Act there can be significant consequences. Keep in mind, though, trustees are protected if they follow the standards of the Act. If they act responsibly and in line with the code, but investments suffer due to unforeseen circumstances, for example, they cannot be held responsible under the law.  

Here are potential consequences if the standards are not met: 

Liability. Trustees can be held legally liable for any losses incurred due to imprudent investment decisions. This means they may be required to restore lost trust assets, pay interest on improperly managed funds, or compensate beneficiaries for unrealized gains that would have been achieved with prudent investment strategies. 

Removal. If a trustee fails to adhere to the prudent investor rule, they can be removed from their position. This can be initiated by beneficiaries or through court action. 

Restitution. Trustees may be required to make financial restitution for any losses caused by their mismanagement. This includes compensating beneficiaries for any financial harm resulting from the trustee’s actions. 

Repairs. Courts can issue orders to rectify the situation, which may include directing the trustee to take specific actions to bring the trust assets into compliance with the prudent investor rule. 

Penalties. Trustees may face penalties and fines for failing to comply with the prudent investor rule. These penalties can be substantial and are intended to deter trustees from making imprudent investment decisions. 

Overall, the consequences of violating the prudent investor law are designed to protect the interests of beneficiaries and ensure that trust assets are managed responsibly and prudently. Bottom line: Follow the standards set in the rule. 

Conclusion 

Even during economically unexciting times, estate planners in California must ensure trustees understand their responsibilities under the Prudent Investor Act to manage and invest trust assets prudently, safeguard the interests of beneficiaries, and fulfill their fiduciary responsibilities. Given this year’s wild swings in the stock market, it is even more critical for trustees to be prudent investors. Market volatility can severely damage trust assets, so trustees must pay close attention to economic conditions and diversify investments.  

Disclaimer: The information provided in this article is for general informational purposes only and is not intended as financial or legal advice. The content should not be relied upon for making financial decisions. Readers are strongly encouraged to consult with a qualified financial professional before making any investment or financial decisions. To discuss legal matters please contact The Estate Lawyers or another qualified law firm. 

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