# BABX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, BABX missed two times BABA's daily return by 9.9 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.

## BABX daily tracking

Over the 90 days to Nov 4, 2026, BABX missed two times BABA's daily return by 9.9 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: 11 of 22 days, from Oct 16, 2026 | NAV | 3.4 | −3.4 | 0.36% | −2.3 (3 days) | −3.8 (8 days) | +1.4 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price (stated) | 12.5 | −2.4 | 2.37% | +2.4 (8 days) | −5.1 (14 days) | +7.5 | Not enough days |
| 90 days to Nov 4, 2026: 12 of 63 days, from Sep 11, 2026 | NAV | 3.8 | −3.8 | 0.41% | −3.8 (4 days) | −3.8 (8 days) | −0.1 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 9.9 | −3.1 | 1.93% | −0.3 (26 days) | −4.3 (36 days) | +3.9 | Not significant (t 1.3) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 10.1 | −3.3 | 1.95% | −1.4 (49 days) | −4.2 (74 days) | +2.7 | Not significant (t 1.2) |
| 1 year to Nov 4, 2026, 251 daily returns | closing price (stated) | 9.2 | −3.3 | 1.76% | −1.5 (102 days) | −4.3 (148 days) | +2.8 | Significant (t 2.0) |

### BABX's largest daily misses

The 5 days BABX 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 | BABA moved | Target | BABX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | May 14, 2026 | closing price | −3.22% | −6.43% | −6.85% | −0.41 pts |
| 2 | Jun 18, 2026 | closing price | −0.32% | −0.63% | −1.03% | −0.40 pts |
| 3 | Sep 3, 2026 | closing price | 0.00% | 0.00% | −0.31% | −0.31 pts |
| 4 | May 7, 2026 | closing price | −0.31% | −0.62% | −0.91% | −0.29 pts |
| 5 | Oct 9, 2026 | closing price | +5.36% | +10.73% | +10.45% | −0.28 pts |

### Method

The daily miss is BABX's return each day less two times BABA'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 12 of the 63 sessions. BABX ranks 29 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether BABA 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 BABX 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

---

Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.
Cite: ETFIQ, BABX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/babx/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/babx/tracking/