# AMPU Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, AMPU missed two times AMPX's daily return by 64.9 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.

## AMPU daily tracking

Over the 90 days to Nov 4, 2026, AMPU missed two times AMPX's daily return by 64.9 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: 20 of 22 days, from Oct 7, 2026 | NAV (stated) | 27.1 | −21.2 | 4.62% | −15.6 (9 days) | −25.7 (11 days) | +10.1 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price | 70.8 | −17.3 | 15.65% | +10.3 (10 days) | −40.3 (12 days) | +50.6 | Not significant (t 1.3) |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 64.9 | −18.9 | 12.94% | +1.1 (28 days) | −34.9 (35 days) | +35.9 | Not significant (t 1.9) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 71.0 | −20.3 | 14.44% | −15.3 (57 days) | −24.6 (67 days) | +9.3 | Not significant (t 0.6) |

### AMPU's largest daily misses

The 5 days AMPU 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 | AMPX moved | Target | AMPU returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Jul 30, 2026 | closing price | +12.20% | +24.41% | +20.26% | −4.14 pts |
| 2 | May 29, 2026 | closing price | −2.73% | −5.47% | −7.68% | −2.21 pts |
| 3 | Jul 29, 2026 | closing price | −7.56% | −15.12% | −13.12% | +1.99 pts |
| 4 | May 21, 2026 | closing price | +1.53% | +3.05% | +1.20% | −1.85 pts |
| 5 | May 15, 2026 | closing price | −5.71% | −11.42% | −12.97% | −1.56 pts |

### Method

The daily miss is AMPU's return each day less two times AMPX'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 20 of the 63 sessions. AMPU ranks 466 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether AMPX 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 AMPU is listed.

### Where to next

### Sources

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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, AMPU daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/ampu/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/ampu/tracking/