What it means
A single mutual fund can offer several share classes, each with its own fee structure. All classes hold the same investments and are managed by the same team, but the costs charged to investors differ.
Retail shares typically carry higher ongoing expenses because they cover the cost of selling, marketing and serving thousands of small accounts. Institutional shares cost less to run per dollar invested, because a few big investors are cheaper to serve.
Minimum investments vary widely. They can be $1,000,000 or more, though some funds set lower minimums or waive them for retirement plans, advisers and certain platforms.
The saving can be significant over time. A fee difference of 0.25% a year may look small, but on a large balance invested for decades it adds up to a meaningful sum, and fees reduce returns directly.
Investors should still compare costs across the whole market, because an institutional class of one fund can cost more than the retail class of another. They should also check whether the class pays sales charges, which are rare in institutional shares, and read the fund's documents for any other limits.
Companies running retirement plans often use institutional shares for their staff to keep costs low. A plan sponsor with a duty to act in members' interests will normally look for the cheapest class that is available.
In practice
Real-world examples.
Example
A university endowment places $20,000,000 into an equity fund through the institutional class. The lower expense ratio saves the endowment tens of thousands of dollars each year compared with the retail class. At a difference of 0.25%, the saving on $20,000,000 is 20,000,000 x 0.0025 = $50,000 every year.
Example
A small business owner sets up a retirement plan for 40 employees with a provider that has negotiated access to institutional shares. The plan pays the lower fee even though no single employee could meet the minimum. The provider pools the money of all 40 employees, so the plan as a whole qualifies for the institutional class.
Example
A financial adviser moves a wealthy client's $1,500,000 portfolio from retail shares to institutional shares in the same fund. The adviser explains that the investments are identical, but the client keeps more of the return. The adviser also checks that the switch does not trigger a tax charge before going ahead.
Formula
Calculation
Annual fee saving = Amount invested x (Retail expense ratio - Institutional expense ratio)
A company pension plan invests $1,000,000 in a fund. The retail class has an expense ratio of 0.85% and the institutional class has 0.60%. Annual cost in the retail class is 1,000,000 x 0.0085 = $8,500, and in the institutional class it is 1,000,000 x 0.0060 = $6,000. The annual saving is 8,500 - 6,000 = $2,500, and over ten years the simple saving is $25,000, before any growth on the money saved. If the fund grows, the fee is charged on a larger balance, so the real saving is usually greater than this simple figure.Case study
Seen in the real world.
Harlow Engineering is an illustrative, fictional company with a staff retirement plan of $12,000,000 invested in retail share classes with an average expense ratio of 0.90%. A new finance director reviewed the plan and asked the provider about cheaper options.
By moving to institutional shares in the same funds, the average expense ratio fell to 0.55%. The portfolio, the managers and the risk stayed exactly the same, and only the charges changed. The annual saving was 12,000,000 x 0.35% = $42,000, which stayed in employees' accounts.
The fictional company also documented the review, which is good practice for plan sponsors. The illustrative lesson is that checking which share class you are in is one of the easiest ways to cut costs without changing the investments. The finance director now repeats the review every year and records the outcome in the plan committee minutes.
Watch out
Common mistakes.
- Assuming institutional shares hold different investments, when they hold exactly the same portfolio as other classes in the fund.
- Believing that only institutions can ever buy them, when some platforms and retirement plans offer access to smaller investors, often by pooling many small accounts.
- Choosing a share class on past performance, when the difference between classes is almost entirely due to fees.
Questions
People also ask.
What are the benefits of institutional shares?
They have lower ongoing costs, which means a larger share of the fund's return reaches the investor. Over long periods, even a small fee gap can compound into a large difference in final value.
How do I find out which share class I own?
Check the fund's name and ticker on your statement, and read the prospectus, which lists each class and its fees.
Do institutional shares carry sales charges?
They usually do not, although investors should read the fund documents to be sure. Some classes may still have redemption fees for early withdrawals.
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