# LEUX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, LEUX missed two times LEU's daily return by 51.9 basis points a day on average, on its closing price.

Data as of Nov 4, 2026. Rebuilt every trading night.

As of Nov 4, 2026 . Rebuilt every trading night.

## LEUX daily tracking

Over the 90 days to Nov 4, 2026, LEUX missed two times LEU's daily return by 51.9 basis points a day on average, on its closing price.

| Window | Read on | Average daily miss, bp | Signed average, bp | Tracking error | Up days, bp | Down days, bp | Up less down, bp | Confidence |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 30 days to Nov 4, 2026, 22 daily returns | closing price (stated) | 47.2 | −13.5 | 10.53% | −45.8 (6 days) | −1.4 (16 days) | −44.5 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 51.9 | −6.8 | 11.74% | +4.3 (21 days) | −12.3 (42 days) | +16.7 | Not significant (t 0.8) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 53.0 | −5.8 | 11.29% | −2.8 (51 days) | −7.9 (73 days) | +5.1 | Not significant (t 0.4) |

### LEUX's largest daily misses

The 5 days LEUX strayed furthest from its daily target in the 180 days to Nov 4, 2026, each on its NAV where ETFIQ holds it, else its closing price.

| # | Day | Read on | LEU moved | Target | LEUX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | May 11, 2026 | closing price | +2.84% | +5.68% | +3.39% | −2.30 pts |
| 2 | Aug 24, 2026 | closing price | −4.90% | −9.79% | −12.03% | −2.24 pts |
| 3 | Aug 25, 2026 | closing price | +9.17% | +18.35% | +20.20% | +1.85 pts |
| 4 | Oct 22, 2026 | closing price | −4.37% | −8.74% | −10.50% | −1.76 pts |
| 5 | Oct 6, 2026 | closing price | +8.80% | +17.59% | +15.84% | −1.75 pts |

### Method

The daily miss is LEUX's return each day less two times LEU's return that day. A basis point is a hundredth of a percentage point. Each window is read twice where ETFIQ holds both NAVs: on NAVs, and on closing prices. It is stated on the closing price because its NAV or its target's is not struck at the 4:00 p.m. close. LEUX ranks 438 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether LEU rose or fell; Significant means the gap is at least two standard errors from zero. The average miss carries its sign: a negative one is what the fund kept below its target each day, its fees and financing among it. Not every fund here has traded for a year, and a number over eight months does not order against one over twelve. This page lists each fund with its window and dates instead of ranking them. It becomes a ranking on the night four of them share a full year. Every window ETFIQ can measure for LEUX is listed.

### Where to next

### Sources

Links are sources, not endorsements.

A ranking is not a recommendation or an opinion. ETFIQ is an independent publisher, not an adviser. Standards and sources

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Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.
Cite: ETFIQ, LEUX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/leux/tracking/
Licence: https://etfiq.com/license/ Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.
HTML: https://etfiq.com/funds/leux/tracking/