# WULX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, WULX missed two times WULF's daily return by 45.1 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.

## WULX daily tracking

Over the 90 days to Nov 4, 2026, WULX missed two times WULF's daily return by 45.1 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) | 50.9 | −8.9 | 9.90% | −7.2 (9 days) | −9.8 (12 days) | +2.6 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 45.1 | −7.6 | 8.89% | −15.2 (27 days) | −1.5 (35 days) | −13.7 | Not significant (t −0.9) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 50.3 | −9.3 | 11.39% | −25.3 (53 days) | +2.9 (70 days) | −28.2 | Significant (t −2.1) |
| 1 year to Nov 4, 2026, 251 daily returns | closing price (stated) | 55.6 | −9.3 | 13.42% | −20.4 (117 days) | +1.2 (132 days) | −21.6 | Significant (t −2.0) |

### WULX's largest daily misses

The 5 days WULX strayed furthest from its daily target in the 1 year to Nov 4, 2026, each on its NAV where ETFIQ holds it, else its closing price.

| # | Day | Read on | WULF moved | Target | WULX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Dec 18, 2025 | closing price | +1.90% | +3.80% | −0.42% | −4.22 pts |
| 2 | Dec 19, 2025 | closing price | +6.19% | +12.38% | +16.36% | +3.97 pts |
| 3 | May 21, 2026 | closing price | +5.96% | +11.93% | +8.06% | −3.87 pts |
| 4 | Jan 6, 2026 | closing price | −3.23% | −6.46% | −9.91% | −3.45 pts |
| 5 | May 22, 2026 | closing price | −0.44% | −0.87% | +2.57% | +3.44 pts |

### Method

The daily miss is WULX's return each day less two times WULF'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. WULX ranks 412 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether WULF 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 WULX 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, WULX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/wulx/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/wulx/tracking/