# BIDG Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, BIDG missed two times BIDU's daily return by 14.8 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.

## BIDG daily tracking

Over the 90 days to Nov 4, 2026, BIDG missed two times BIDU's daily return by 14.8 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) | 10.2 | −5.1 | 1.78% | −5.9 (7 days) | −4.6 (12 days) | −1.3 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price | 18.7 | −3.6 | 3.43% | −0.6 (10 days) | −6.2 (12 days) | +5.6 | Not significant (t 0.6) |
| 90 days to Nov 4, 2026: 20 of 63 days, from Sep 11, 2026 | NAV | 10.5 | −5.6 | 1.78% | −7.1 (8 days) | −4.6 (12 days) | −2.5 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 14.8 | −4.5 | 2.84% | −2.7 (26 days) | −5.7 (37 days) | +3.0 | Not significant (t 0.7) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 23.8 | −4.5 | 6.55% | +1.5 (51 days) | −8.7 (73 days) | +10.3 | Not significant (t 1.3) |

### BIDG's largest daily misses

The 5 days BIDG 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 | BIDU moved | Target | BIDG returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Jul 15, 2026 | closing price | +1.59% | +3.19% | +5.85% | +2.66 pts |
| 2 | Jul 14, 2026 | closing price | −3.23% | −6.46% | −8.94% | −2.48 pts |
| 3 | Jul 8, 2026 | closing price | +4.93% | +9.87% | +10.63% | +0.77 pts |
| 4 | Jul 24, 2026 | closing price | −1.91% | −3.82% | −3.07% | +0.75 pts |
| 5 | May 18, 2026 | closing price | +1.76% | +3.52% | +2.86% | −0.66 pts |

### Method

The daily miss is BIDG's return each day less two times BIDU'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. BIDG ranks 84 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether BIDU 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 BIDG 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, BIDG daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/bidg/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/bidg/tracking/