An interval fund is a fund that holds hard-to-sell assets, like private loans or property.

It does not let you cash out any day. It buys back shares only at set times, or intervals.

That calendar is the point. It lets the fund own things that do not trade daily.

Interval funds have grown fast, holding over $100 billion by 2025.

That is up from just a few billion a decade ago.

Money flowed in for access to private credit and real estate.

Most funds buy back about 5% of shares each quarter.

They must give at least 21 days notice before each window.

A normal mutual fund must sell assets to pay anyone who leaves, any day.

That forces it to hold liquid things it can sell fast.

An interval fund removes the daily promise, so it can hold slow assets.

It sets a window, often quarterly, and offers to buy back a slice of shares.

The offer is capped, usually near 5% of the fund.

Between windows, your money stays invested whether you like it or not.

The first stress point is the cap. If more than 5% want out, the fund pays each person only part.

The rest wait for the next window, months away.

The second is pricing. The private assets are valued by the manager, not a live market.

If those values lag reality, early leavers may get too much and stayers too little.

The third is timing. Requests spike when markets fall, the worst time to sell private assets.

The interval design is honest about the trade. It matches slow assets with slow exits.

That is a fair structure, and it deserves credit over funds that overpromise liquidity.

What can break is expectation. A holder who needs cash fast can be stuck for a quarter or more.

You can watch the signs. Each fund reports its repurchase requests and how much it paid.

If requests keep topping the cap, demand to exit is outrunning the door.

An interval fund is a slow-exit wrapper built for slow assets, and the calendar is its load-bearing part.

Used with eyes open, it is a sound way to hold private assets. The risk is needing cash between windows.

The next test is a credit or property downturn. Watch whether repurchase requests exceed the quarterly cap.