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DYNF vs SEIM: Differences, Returns & Fees

DYNF and SEIM hold 33% of their weight in the same names, and SEIM returned +22.3% over the year. Net assets: $42.9bn on Oct 9, 2026 for iShares U.S. Equity Factor Rotation Active ETF, and $1.5bn on Jun 30, 2026 for SEI Enhanced U.S. Large Cap Momentum Factor ETF.

SEIM costs 0.11 points a year less; their one-year returns differ by 2.7 points; DYNF is far larger, $38.0bn against $1.5bn.

DYNFSEIM
Expense ratio0.26%0.15%
Net assets, as of Jun 30, 2026$38.0bn$1.5bn
Total return, 1 year+19.6%+22.3%
What it tracksNo index, actively managedNo index, actively managed
Holdings in common33%
Top ten holdings, share of the fund41.0%37.6%

Holdings in common uses holdings dated Jun 30, 2026 and Oct 9, 2026.

+19.6%
DYNF total return, 1 year
+22.3%
SEIM total return, 1 year
0.26%
DYNF expense ratio
0.15%
SEIM expense ratio

What they hold in common

By the books each fund has filed, DYNF and SEIM hold 33% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Oct 9, 2026.

half

33% in common

Positions both hold, largest shared weight first
Holding DYNF SEIM
NVIDIA 8.39% 6.24%
APPLE 7.73% 2.90%
MICROSOFT 5.08% 2.66%
ALPHABET CLASS A 2.48% 7.00%
JOHNSON & JOHNSON 1.96% 2.48%
MICRON TECHNOLOGY 1.89% 2.98%
CISCO SYSTEMS INC 1.67% 1.81%
CATERPILLAR INC 1.61% 2.31%
LAM RESEARCH 1.61% 3.86%
PARKER-HANNIFIN 1.31% 1.93%
AMAZON.COM INC 4.18% 1.05%
PALANTIR TECHNOLOGIES CLASS A 0.79% 0.72%
Only in DYNF
JPMORGAN CHASE & CO 3.20%
EXXONMOBIL HOLDINGS CORP 2.74%
META PLATFORMS CLASS A 2.65%
BANK OF AMERICA 1.85%
ADVANCED MICRO DEVICES 1.77%
TESLA INC 1.57%
SALESFORCE 1.50%
CHEVRON 1.47%
Only in SEIM
APPLIED MATERIALS, INC. 3.37%
JABIL INC. 2.64%
NORTHERN TRUST CORPORATION 2.06%
EBAY INC. 2.02%
NVENT ELECTRIC PUBLIC LIMITED COMPANY 1.77%
KEURIG DR PEPPER INC. 1.61%
THE HERSHEY COMPANY 1.61%
TD SYNNEX CORPORATION 1.40%

Check overlap with more funds →

On the same fields

DYNF
iShares U.S. Equity Factor Rotation Active ETF
SEIM
SEI Enhanced U.S. Large Cap Momentum Factor ETF
Where it sits Stock ETF Stock ETF
Issuer iShares SEI
What it is Actively managed Actively managed
Total return, 1 year +19.6% +22.3%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 +2.3 pts +5.0 pts
Expense ratio 0.26% 0.15%
Already in the S&P 500 94.8% 89.4%
Holdings 261 71
Net assets, DYNF as of Oct 9, 2026 and SEIM as of Jun 30, 2026 $42.9bn $1.5bn

DYNF and SEIM on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

DYNF in plain words

DYNF is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned +19.6% with distributions reinvested, against +17.3% for the S&P 500. The prospectus expense ratio is 0.26% a year. By its holdings published by its issuer for Oct 9, 2026, 95% of the fund by weight is stocks the S&P 500 also holds, across 261 positions, with the top ten at 41.0%.

SEIM in plain words

SEIM is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned +22.3% with distributions reinvested, against +17.3% for the S&P 500. The prospectus expense ratio is 0.15% a year. By its holdings filed for Jun 30, 2026, 89% of the fund by weight is stocks the S&P 500 also holds, across 71 positions, with the top ten at 37.6%.

Questions people ask

Which returned more over the last year, DYNF or SEIM?
In the year to Oct 9, 2026, with distributions reinvested, DYNF returned +19.6% and SEIM +22.3%.
Which is cheaper, DYNF or SEIM?
SEIM is cheaper, by 0.11 percentage points a year. That is about $11 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do DYNF and SEIM overlap with the S&P 500?
By their latest filed holdings, 95% of DYNF and 89% of SEIM by weight is stocks the S&P 500 already holds.
Other comparisons
DYNF vs QQQEDYNF vs FQALCATH vs DYNFDYNF vs FDLOSEIM vs VIGSEIM vs SPYMSEIM vs VTISEIM vs SPY
DYNF on its own →SEIM on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
DYNF filings on SEC EDGAR ↗DYNF prospectus with the expense ratio (SEC) ↗iShares page for DYNF ↗SEIM filings on SEC EDGAR ↗SEIM prospectus with the expense ratio (SEC) ↗SEI website ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, DYNF against SEIM, data as of Oct 9, 2026. https://etfiq.com/compare/any/dynf-vs-seim

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.