# QBTX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, QBTX missed two times QBTS's daily return by 40.0 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.

## QBTX daily tracking

Over the 90 days to Nov 4, 2026, QBTX missed two times QBTS's daily return by 40.0 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) | 37.4 | −6.0 | 7.87% | +4.5 (8 days) | −11.9 (14 days) | +16.4 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 40.0 | −8.8 | 7.86% | −24.6 (25 days) | +1.6 (38 days) | −26.2 | Significant (t −2.1) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 57.1 | −9.0 | 15.15% | −37.4 (51 days) | +10.8 (73 days) | −48.1 | Significant (t −2.8) |
| 1 year to Nov 4, 2026, 251 daily returns | closing price (stated) | 54.6 | −9.5 | 13.19% | −35.0 (113 days) | +11.4 (138 days) | −46.4 | Significant (t −4.5) |

### QBTX's largest daily misses

The 5 days QBTX 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 | QBTS moved | Target | QBTX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Jul 30, 2026 | closing price | +11.12% | +22.25% | +16.54% | −5.71 pts |
| 2 | Jul 29, 2026 | closing price | −8.25% | −16.50% | −12.69% | +3.82 pts |
| 3 | Jun 25, 2026 | closing price | −4.66% | −9.31% | −6.19% | +3.12 pts |
| 4 | Jun 24, 2026 | closing price | −8.19% | −16.38% | −19.18% | −2.80 pts |
| 5 | Nov 12, 2025 | closing price | −8.93% | −17.87% | −15.23% | +2.64 pts |

### Method

The daily miss is QBTX's return each day less two times QBTS'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. QBTX ranks 372 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether QBTS 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 QBTX 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, QBTX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/qbtx/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/qbtx/tracking/