Reality Check
September 2, 2026

11 of the 13 Leveraged ETFs We Tested Decay Less in September

The group gains on average, which is rare.

These ETFs decay by design, so the question is not whether they close lower in September, but whether they fall less than they usually do.

We compared 13 leveraged and inverse ETFs against their own history. For each one we took its average September return and compared it against its average return across all months. 11 of the 13 beat their own average by a median of 3.52 points.

Individual ETFs diverge sharply

DUST averages +7.32% in September versus −1.26% in a typical month. In fact, September is the best performing month for DUST.

LABD and ZSL also have better than average months in September.

On the other hand, UVXY averages −10.41% in September against −8.18% in a typical month and has closed lower in each of its last two Septembers.

Widest September gaps in either directionCovers 13 ETFs with at least 11 Septembers of history.A bar to the right means September outperforms a typical month for that ETF.−9 pts+0 pts+9 ptsDUST+8.58LABD+6.86ZSL+6.41FAZ+5.47SQQQ+4.70TZA+3.96SPXU+3.41SOXS+2.95EDZ+2.33BOIL+2.20SCO−0.57UVXY−2.24September average minus the same ETF’s average monthSeptember is strongerSeptember is weaker

DUST and LABD rank among the 6 strongest September performers, while UVXY, SCO and BOIL sit among the 6 weakest.

All 13 ETFs we checked, sorted by gap size

All 13 ETFs we checked, sorted by September gap
Gap is each ETF’s September average minus its own average month, in percentage points.
TickerSeptember AvgAvg MonthGapSeptember RankGreen/Red FrequencySeptembers
DUST+7.32%−1.26%+8.581 of 12▲53.3% / ▼46.7%15
LABD+4.63%−2.23%+6.863 of 12▲54.5% / ▼45.5%11
ZSL+4.30%−2.12%+6.412 of 12▲47.1% / ▼52.9%17
FAZ+0.85%−4.62%+5.471 of 12▲47.1% / ▼52.9%17
SQQQ+0.11%−4.59%+4.701 of 12▲43.8% / ▼56.2%16
TZA+0.08%−3.88%+3.962 of 12▲47.1% / ▼52.9%17
GLL+2.33%−1.18%+3.522 of 12▲64.7% / ▼35.3%17
SPXU−0.05%−3.46%+3.411 of 12▲35.3% / ▼64.7%17
SOXS−3.95%−6.90%+2.952 of 12▲50.0% / ▼50.0%16
EDZ+0.38%−1.95%+2.335 of 12▲41.2% / ▼58.8%17
BOIL−0.44%−2.64%+2.206 of 12▲35.7% / ▼64.3%14
SCO−1.36%−0.79%−0.578 of 12▲47.1% / ▼52.9%17
UVXY−10.41%−8.18%−2.248 of 12▲28.6% / ▼71.4%14

September is not the worst month of the year for any of the 13 ETFs.

Measured against its own average month, September is stronger for 11 of the 13 ETFs we tested, by a median of 3.52 points. Each ETF is measured only against its own history.

The gap between individual ETFs is large. DUST runs 8.58 points above its own average in September. UVXY runs 2.24 points below.

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