# SNDU Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, SNDU missed two times SNDK'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.

## SNDU daily tracking

Over the 90 days to Nov 4, 2026, SNDU missed two times SNDK'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: 11 of 22 days, from Oct 16, 2026 | NAV | 9.7 | −9.7 | 0.56% | −8.1 (5 days) | −11.0 (6 days) | +3.0 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price (stated) | 20.9 | −9.2 | 4.06% | −21.9 (7 days) | −3.3 (15 days) | −18.6 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 24.2 | −11.3 | 4.81% | −15.5 (28 days) | −7.9 (35 days) | −7.7 | Not significant (t −1.0) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 30.2 | −9.6 | 6.08% | −7.2 (58 days) | −11.7 (66 days) | +4.6 | Not significant (t 0.7) |

### SNDU's largest daily misses

The 5 days SNDU 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 | SNDK moved | Target | SNDU returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Aug 7, 2026 | closing price | −3.68% | −7.37% | −8.65% | −1.28 pts |
| 2 | Jul 16, 2026 | closing price | −12.63% | −25.25% | −26.31% | −1.06 pts |
| 3 | May 19, 2026 | closing price | +3.77% | +7.54% | +6.51% | −1.03 pts |
| 4 | Jun 10, 2026 | closing price | −0.20% | −0.40% | −1.33% | −0.92 pts |
| 5 | May 20, 2026 | closing price | +0.67% | +1.34% | +2.20% | +0.86 pts |

### Method

The daily miss is SNDU's return each day less two times SNDK'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 11 of the 63 sessions. SNDU ranks 224 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether SNDK 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 SNDU 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, SNDU daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/sndu/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/sndu/tracking/