# CSEX Tracking Error: Up vs Down Days

> Over the 90 days to Nov 4, 2026, CSEX missed two times CLS's daily return by 31.1 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.

## CSEX daily tracking

Over the 90 days to Nov 4, 2026, CSEX missed two times CLS's daily return by 31.1 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) | 31.5 | −2.0 | 8.10% | +11.7 (7 days) | −8.4 (15 days) | +20.1 | Not enough days |
| 90 days to Nov 4, 2026, 63 daily returns | closing price (stated) | 31.1 | −3.0 | 6.66% | −4.3 (32 days) | −1.6 (31 days) | −2.8 | Not significant (t −0.3) |
| 180 days to Nov 4, 2026, 124 daily returns | closing price (stated) | 36.5 | −2.7 | 7.38% | −4.7 (59 days) | −0.9 (65 days) | −3.8 | Not significant (t −0.5) |

### CSEX's largest daily misses

The 5 days CSEX 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 | CLS moved | Target | CSEX returned | Miss |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Oct 21, 2026 | closing price | +1.64% | +3.28% | +4.95% | +1.66 pts |
| 2 | May 13, 2026 | closing price | −0.41% | −0.81% | −2.00% | −1.19 pts |
| 3 | Jul 28, 2026 | closing price | +10.04% | +20.09% | +18.92% | −1.17 pts |
| 4 | Oct 27, 2026 | closing price | +12.12% | +24.24% | +23.18% | −1.06 pts |
| 5 | May 29, 2026 | closing price | +9.79% | +19.58% | +18.61% | −0.98 pts |

### Method

The daily miss is CSEX's return each day less two times CLS'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. CSEX ranks 293 of 494 2x leveraged ETFs on its 90-day average daily miss. Up days and down days split the miss by whether CLS 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 CSEX 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, CSEX daily tracking, listed by window, data as of Nov 4, 2026. https://etfiq.com/funds/csex/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/csex/tracking/