# LABX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, LABX missed two times ALAB's daily return by 32.5 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.

## LABX daily tracking

Over the 90 days to Nov 4, 2026, LABX missed two times ALAB's daily return by 32.5 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, 22 daily returns | closing price (stated) | 27.2 | −6.2 | 5.35% | −18.5 (9 days) | +2.3 (13 days) | −20.7 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 32.5 | −5.8 | 6.55% | −18.2 (31 days) | +6.2 (32 days) | −24.4 | Significant (t −2.4) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 45.2 | −3.1 | 10.01% | −2.8 (64 days) | −3.3 (60 days) | +0.5 | Not significant (t 0.0) |
| 1 year to Nov 4, 2026, 251 daily returns | closing price (stated) | 41.8 | −4.1 | 9.24% | −10.3 (132 days) | +2.8 (119 days) | −13.1 | Not significant (t −1.8) |

### LABX's largest daily misses

The 5 days LABX 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 | ALAB moved | Target | LABX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Jun 25, 2026 | closing price | −0.48% | −0.96% | +1.89% | +2.85 pts |
| 2 | Dec 22, 2025 | closing price | +5.00% | +10.00% | +7.92% | −2.08 pts |
| 3 | Jun 24, 2026 | closing price | +0.73% | +1.46% | −0.39% | −1.85 pts |
| 4 | Nov 5, 2025 | closing price | +1.47% | +2.93% | +1.11% | −1.83 pts |
| 5 | Dec 23, 2025 | closing price | −2.20% | −4.39% | −2.72% | +1.67 pts |

### Method

The daily miss is LABX's return each day less two times ALAB'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. LABX ranks 309 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether ALAB 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 LABX 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, LABX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/labx/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/labx/tracking/