Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
SMAX vs SPLG: how they differ
SMAX and SPLG are funds of different kinds, on the fields both publish.
iShares Large Cap Max Buffer Sep ETF and S&P 500, book from IVV.
| SMAX iShares Large Cap Max Buffer Sep ETF | SPLG S&P 500, book from IVV | |
|---|---|---|
| Where it sits | Buffer ETF | Core index fund |
| Issuer | iShares | S&P |
| What it is | Defined outcome, 0% to 100% on IVV | S&P 500, book from IVV |
| Total return, 1 year | not published | +17.6% |
| S&P 500 over the same days | not published | +17.5% |
| Gap to the S&P 500 | not available | +0.1 pts |
| Expense ratio | 0.50% | not published |
SMAX in plain words
IVV had already risen past this fund's cap of +7.3% for the period on Sep 12, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 0.5% as the period runs out. The fund's price can fall 6.8% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, IVV can fall 12.6% from today's level to the point where the buffer begins. Protection left, in index points: 99.5% of the 99.5% buffer still sits below today's IVV level. 20 days remained on Sep 12, 2026. On Sep 30, 2026 the period ends and a new cap is set.
SPLG in plain words
SPLG is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100.
Questions people ask
- Are SMAX and SPLG the same kind of fund?
- No. SMAX is a buffer ETF and SPLG is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.
Other comparisons
Where to next
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, SMAX against SPLG, data as of Sep 12, 2026. https://etfiq.com/compare/any/SMAX-SPLG Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources