# GFSG Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, GFSG missed two times GFS's daily return by 30.6 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.

## GFSG daily tracking

Over the 90 days to Nov 4, 2026, GFSG missed two times GFS's daily return by 30.6 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) | 11.8 | −4.6 | 2.11% | −10.4 (9 days) | +0.7 (10 days) | −11.1 | Not enough days |
| 30 days to Nov 4, 2026, 22 daily returns | closing price | 23.4 | −7.2 | 4.59% | −10.9 (10 days) | −4.0 (12 days) | −7.0 | Not significant (t −0.6) |
| 90 days to Nov 4, 2026: 21 of 63 days, from Sep 10, 2026 | NAV | 11.3 | −3.6 | 2.08% | −7.5 (11 days) | +0.7 (10 days) | −8.1 | Not significant (t −1.5) |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 30.6 | −6.7 | 6.77% | −13.5 (32 days) | +0.3 (31 days) | −13.8 | Not significant (t −1.3) |

### GFSG's largest daily misses

The 5 days GFSG strayed furthest from its daily target in the 90 days to Nov 4, 2026, each on its NAV where ETFIQ holds it, else its closing price.

| # | Day | Read on | GFS moved | Target | GFSG returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Aug 10, 2026 | closing price | −7.19% | −14.39% | −12.62% | +1.77 pts |
| 2 | Aug 11, 2026 | closing price | +1.54% | +3.08% | +1.77% | −1.31 pts |
| 3 | Sep 29, 2026 | closing price | +0.17% | +0.33% | −0.37% | −0.71 pts |
| 4 | Aug 7, 2026 | closing price | +7.09% | +14.18% | +13.47% | −0.70 pts |
| 5 | Sep 30, 2026 | closing price | +0.13% | +0.25% | +0.95% | +0.70 pts |

### Method

The daily miss is GFSG's return each day less two times GFS'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 21 of the 63 sessions. GFSG ranks 288 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether GFS 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. 1 NAV day was held out, where the NAV and the closing price disagreed about the day: Nov 2, 2026. 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 GFSG 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, GFSG daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/gfsg/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/gfsg/tracking/