A leveraged single-stock ETF promises a multiple of one stock's daily move. A 2x Nvidia fund aims to rise 2% when Nvidia rises 1% that day.

The word daily is doing heavy lifting. The fund resets its bet at the close, every day.

Over time, that reset makes the fund behave in ways buyers do not expect.

These funds exploded in number through 2024 and 2025.

NVDL, a 2x Nvidia fund, charges 1.05% a year and drew billions.

MSTU aims for 2x the daily move of MicroStrategy, a very volatile stock.

In 2025, both the 2x and the inverse 2x MicroStrategy funds fell more than 65% at points.

The stock itself did not fall that far. The gap is the machine at work.

To deliver 2x a stock, the fund holds swaps and borrows against them.

Each day it must rebalance to keep the 2x ratio for the next day.

That forces it to buy more after an up day and sell after a down day.

In a choppy market, that is buying high and selling low, again and again.

The result is called volatility decay. The more a stock swings without trending, the more the fund bleeds.

So a 2x fund can lose money over a month even if the stock ends flat.

The first stress point is volatility itself. High swings speed the decay.

The second is the swap counterparty. The fund relies on banks to honor the swaps that create the leverage.

The third is crowding. When one stock and its leveraged funds grow large, the daily rebalancing can push the stock around near the close.

That feedback can add to swings in the very stock the fund tracks.

As a day-trading tool, the machine does exactly what it says. For one day, it delivers close to 2x.

Used that way, it is honest about its job.

What breaks is the buy-and-hold use. Held for weeks in a choppy market, the fund can fall far below 2x the stock's return.

You can see the effect yourself. Compare the fund's return over a month with twice the stock's return.

The fund's own site posts the daily objective and the holdings that create it.

A leveraged single-stock ETF is a daily machine wearing a long-term costume.

The daily reset that makes it work each day is the same part that bleeds it over time.

The next test is any stretch of high, trendless swings. Watch the fund's monthly return against twice the stock's move.