# RBUF (Innovator U.S. Small Cap 10 Buffer ETF - Quarterly)

Innovator · Buffer ETFs · data as of Sep 11, 2026

As of Sep 11, 2026, RBUF's buffer is absorbing losses, with 6.2% of 10.0% points still beneath IWM.

## Key facts

- RBUF, can still gain: 5.3%, as of Sep 11, 2026.
- RBUF, fall before the buffer: 0.0%, as of Sep 11, 2026.
- RBUF, protection left, index points: 6.2%, as of Sep 11, 2026.
- RBUF, days to reset: 19, as of Sep 11, 2026.
- RBUF, net assets: $97m (issuer page, as of Sep 11, 2026).
- RBUF, expense ratio: 0.79% (issuer page, Sep 11, 2026).

## RBUF over each window to Sep 11, 2026

| Window | Total return | IWM | Gap to IWM |
| --- | --- | --- | --- |
| 3 months | −0.2% | −1.1% | +1.0 pts |
| 6 months | +5.2% | +17.6% | −12.4 pts |
| 1 year | +8.5% | +21.2% | −12.7 pts |

## Every published field

| Field | Value | Source |
| --- | --- | --- |
| Reference index | IWM | ETFIQ |
| Buffer | 10% | ETFIQ |
| Outcome period | Jun 30, 2026 to Sep 30, 2026 | ETFIQ |
| Starting cap | +4.9% | ETFIQ |
| IWM return since period start | −3.9% | ETFIQ |
| Fund return since period start | −0.5% | ETFIQ |
| Net assets | $97m | issuer page, as of Sep 11, 2026 |
| Band state today | Buffer working | ETFIQ |
| Can still gain | 5.3% | issuer, fund price |
| Fall before buffer | 0.0% | issuer, fund price |
| Fall to the buffer in index terms | 0.0% | ETFIQ |
| Protection left in index points | 6.2% of 10.0% | ETFIQ |
| Days left in period | 19 | ETFIQ |
| Expense ratio | 0.79% | issuer page, Sep 11, 2026 |

## Questions

### How much can RBUF still gain?

About 5.3% from its price on Sep 11, 2026, before it reaches its cap, by the issuer's published figure. The cap for the period was set at +4.9%.

### How far can RBUF fall before the buffer helps?

0.0% in fund-price terms on Sep 11, 2026, by the issuer's figure. In index terms IWM can fall 0.0% from that level before the buffer begins. Losses until that point are the holder's.

### How much of the RBUF buffer is left?

6.2% of the 10.0% buffer sat below the IWM level on Sep 11, 2026. That is an ETFIQ calculation in index points, on one definition for every issuer.

### When does RBUF reset?

The outcome period ends on Sep 30, 2026, 19 days from the data on Sep 11, 2026. A new cap is set the next day and the buffer starts again.

### What does RBUF cost?

The prospectus expense ratio is 0.79% a year.


## Cite this page

ETFIQ, RBUF, data as of Sep 11, 2026. https://etfiq.com/funds/rbuf
Free to use with attribution; the underlying files are at https://etfiq.com/data/.

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