# XLVX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, XLVX missed two times U.S. Healthcare's daily return by 13.5 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.

## XLVX daily tracking

Over the 90 days to Nov 4, 2026, XLVX missed two times U.S. Healthcare's daily return by 13.5 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: 17 of 22 days, from Oct 7, 2026 | NAV (stated) | 7.3 | −3.5 | 1.26% | −4.0 (8 days) | −3.1 (9 days) | −0.9 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price | 12.5 | −4.6 | 2.40% | −6.1 (11 days) | −4.6 (10 days) | −1.5 | Not significant (t −0.2) |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 13.5 | −3.6 | 2.79% | −5.5 (31 days) | −2.3 (31 days) | −3.2 | Not significant (t −0.7) |

### XLVX's largest daily misses

The 5 days XLVX strayed furthest from its daily target in the 90 days to Nov 4, 2026, each on its NAV where ETFIQ holds it, else its closing price.

| # | Day | Read on | U.S. Healthcare moved | Target | XLVX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Sep 30, 2026 | closing price | −1.35% | −2.71% | −2.07% | +0.64 pts |
| 2 | Oct 1, 2026 | closing price | −1.32% | −2.64% | −3.07% | −0.43 pts |
| 3 | Aug 20, 2026 | closing price | −1.87% | −3.75% | −3.43% | +0.32 pts |
| 4 | Sep 1, 2026 | closing price | +0.66% | +1.33% | +1.00% | −0.32 pts |
| 5 | Aug 19, 2026 | closing price | +3.51% | +7.01% | +6.75% | −0.26 pts |

### Method

The daily miss is XLVX's return each day less two times U.S. Healthcare'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 NAVs for 17 of the 63 sessions. XLVX ranks 64 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether U.S. Healthcare 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. U.S. Healthcare is itself an ETF, so its own fee and tracking are inside the miss. 3 NAV days were held out, where the NAV and the closing price disagreed about the day: Oct 27, 2026, Oct 28, 2026, Oct 29, 2026. 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 XLVX 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, XLVX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/xlvx/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/xlvx/tracking/