FNGU's Hidden Costs: 0.95% Fee Is Only Half the Story

The FNGU (MicroSectors FANG+ Index 3x Leveraged ETF) lost 28.88% in a single month, while the Nasdaq-100 remained nearly flat. 24/7 Wall St. reveals that the 0.95% annual fee is only half the true cost, as daily decay from leverage erodes returns in volatile markets.

The Hidden Cost: Daily Decay

Leveraged ETFs like FNGU are designed to deliver a multiple (3x) of the daily return of the underlying index (FANG+ Index). However, this design works both ways: on volatile days, daily rebalancing erodes value over time, even if the index returns to its starting point.

Illustrative Example

If the index rises 10% one day and falls 9% the next, FNGU would return +30% then -27%, resulting in a net loss of 5.1% (1.3 × 0.73 = 0.949), while the original index loses only 0.1% (1.1 × 0.91 = 1.001).

Why This Cost Is Not Advertised

Marketing pages typically focus on the annual expense ratio (0.95%) and potential upside, but they do not highlight the impact of daily decay. An investor who put $10,000 into FNGU on June 1, 2026, saw it shrink to approximately $7,112 by July 1, 2026, a loss of 28.88%.

Broader Context

During the same period, the Nasdaq-100 moved very little, meaning the large loss in FNGU was not due to a market crash but to daily volatility and decay. This pattern is common in leveraged funds, especially in choppy markets.

What This Means for Investors

Leveraged ETFs like FNGU are suitable for day traders and very short-term investors, not for long-term holdings. Investors should understand the daily decay mechanism before investing and consider traditional alternatives like the QQQ (Invesco QQQ Trust) which tracks the Nasdaq-100 without leverage.