# AMZU Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, AMZU missed two times AMZN's daily return by 7.6 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.

## AMZU daily tracking

Over the 90 days to Nov 4, 2026, AMZU missed two times AMZN's daily return by 7.6 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: 19 of 22 days, from Oct 7, 2026 | NAV (stated) | 4.1 | −4.1 | 0.41% | −3.5 (9 days) | −4.6 (10 days) | +1.0 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price | 9.2 | −4.8 | 1.66% | −5.4 (12 days) | −4.2 (10 days) | −1.2 | Not significant (t −0.2) |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 7.6 | −4.0 | 1.34% | −6.6 (28 days) | −1.9 (35 days) | −4.7 | Significant (t −2.3) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 11.8 | −4.2 | 4.64% | −5.8 (54 days) | −2.9 (70 days) | −2.9 | Not significant (t −0.5) |
| 1 year to Nov 4, 2026, 251 daily returns | closing price (stated) | 9.5 | −4.4 | 3.37% | −6.2 (126 days) | −2.5 (125 days) | −3.8 | Not significant (t −1.4) |

### AMZU's largest daily misses

The 5 days AMZU 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 | AMZN moved | Target | AMZU returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Jun 26, 2026 | closing price | +2.50% | +5.00% | +2.80% | −2.20 pts |
| 2 | Jun 29, 2026 | closing price | +3.20% | +6.40% | +8.27% | +1.87 pts |
| 3 | Jul 31, 2026 | closing price | +15.32% | +30.64% | +29.73% | −0.91 pts |
| 4 | Jul 2, 2026 | closing price | +0.40% | +0.80% | +0.29% | −0.51 pts |
| 5 | Jul 30, 2026 | closing price | +3.90% | +7.81% | +8.32% | +0.51 pts |

### Method

The daily miss is AMZU's return each day less two times AMZN'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 19 of the 63 sessions. AMZU ranks 10 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether AMZN 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 AMZU 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, AMZU daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/amzu/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/amzu/tracking/