# WDCX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, WDCX missed two times WDC's daily return by 24.2 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.

## WDCX daily tracking

Over the 90 days to Nov 4, 2026, WDCX missed two times WDC's daily return by 24.2 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) | 23.9 | −4.8 | 4.67% | −15.2 (8 days) | +1.1 (14 days) | −16.3 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 24.2 | −5.4 | 4.77% | −8.3 (30 days) | −2.8 (33 days) | −5.5 | Not significant (t −0.7) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 27.1 | −4.6 | 5.36% | −2.4 (63 days) | −6.8 (61 days) | +4.5 | Not significant (t 0.7) |

### WDCX's largest daily misses

The 5 days WDCX 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 | WDC moved | Target | WDCX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | May 18, 2026 | closing price | −4.84% | −9.68% | −10.55% | −0.87 pts |
| 2 | Jul 30, 2026 | closing price | +15.37% | +30.73% | +29.92% | −0.81 pts |
| 3 | Jul 29, 2026 | closing price | −0.32% | −0.63% | +0.10% | +0.73 pts |
| 4 | Jul 17, 2026 | closing price | +2.23% | +4.46% | +5.17% | +0.71 pts |
| 5 | May 15, 2026 | closing price | −1.46% | −2.92% | −2.23% | +0.69 pts |

### Method

The daily miss is WDCX's return each day less two times WDC'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. WDCX ranks 226 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether WDC 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 WDCX 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, WDCX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/wdcx/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/wdcx/tracking/