BENCHMARK 2021-B31 MORTGAGE TRUST - A Simple Guide for Investors

I’ve put together this guide to help you understand how this trust performed this year. Use it to decide if this investment still fits your goals.

1. What is this trust?

Benchmark 2021-B31 is a Mortgage Trust created in October 2021. Think of it as a locked vault holding 55 commercial real estate loans worth about $1.15 billion. When you invest, you buy a "slice" of that vault. You earn money from the interest paid on those loans. Payments follow a strict order, and the trust is designed to pay out income until it matures in October 2034.

2. How did it perform this year?

The trust is in "maintenance mode." Its only job is to collect payments until the loans expire. It manages specific assets, such as the $114.5 million loan for 350 & 450 Water Street and the $48.5 million loan for One Memorial Drive. Currently, all loans are up to date, and none are in default.

3. Financial health and the paperwork

The trust relies on third-party companies—like Midland Loan Services and U.S. Bank—to handle daily operations. These companies file regular reports to prove they are following the rules. The latest paperwork confirms that these systems are working well and that all financial controls are effective.

4. Key risks: What could go wrong?

This is the most important part to understand:

• Legal Headwinds: Banks acting as trustees are currently facing lawsuits from investors in other trusts regarding past performance. While these lawsuits do not involve our specific trust, they create industry-wide uncertainty. If management becomes distracted or faces structural changes, it could lead to higher costs or administrative shifts.
• Concentration Risk: The trust holds a limited number of large loans. The top 10 loans make up about 45% of the total pool. There is no safety net; if a borrower defaults on a major property, the lowest-rated slices of the trust will lose money first.

5. The Bottom Line

The trust is doing exactly what it was designed to do: collecting interest. There are no plans for growth. Your return depends on the commercial real estate market, especially the office sector, which makes up over half of the trust's assets.

Decision Checklist:

• Monitor the Office Market: Since over 50% of the assets are office properties, watch for news regarding office vacancies and commercial real estate trends.
• Watch the "Debt Service Coverage Ratio": This is your most important metric. If this number falls below 1.0, it means the properties are no longer generating enough cash to cover their loan payments, which is a red flag for potential defaults.