ION vs LIMI: which is really different?

ION and LIMI hold 22% of their weight in the same names. ProShares S&P Global Core Battery Metals ETF and Themes Lithium & Battery Metal Miners ETF.

2.6%
ION in the S&P 500
7.5%
LIMI in the S&P 500
+18.9%
ION total return, 1 year
+12.1%
LIMI total return, 1 year
ION · 1 year to Sep 30, 202697% of its weight is outside the S&P 500
97% of its weight is outside the S&P 5003% of ION's weight is in S&P 500 companies and 97% is outside the index3%97%3% of its weight in S&P 500 companiesof its weight outside the S&P 500active share 100% · top ten 33% of the fund · 53 holdings filed Sep 30, 2026 · Nasdaq-100: 0% in97% of its weight is outside the S&P 5003% of ION's weight is in S&P 500 companies and 97% is outside the index3%97%3% of its weight in S&P 500 companiesof its weight outside the S&P 500active share 100% · top ten 33% of the fund

3% of ION's weight is in S&P 500 companies and 97% is outside the index

LIMI · 1 year to Sep 25, 202693% of its weight is outside the S&P 500
93% of its weight is outside the S&P 5008% of LIMI's weight is in S&P 500 companies and 93% is outside the index8%93%inof its weight outside the S&P 500active share 100% · top ten 53% of the fund · 41 holdings filed Jun 30, 2026 · Nasdaq-100: 0% in93% of its weight is outside the S&P 5008% of LIMI's weight is in S&P 500 companies and 93% is outside the index8%93%8% of its weight in S&P 500 companiesof its weight outside the S&P 500active share 100% · top ten 53% of the fund

8% of LIMI's weight is in S&P 500 companies and 93% is outside the index

ETFIQ Off-Index Score · ION scores higherHow much of it is not the index it is sold as an alternative to?
0.1, the lowest in this set92.0, the highest

A percentile among the 375 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it → How it is computed →

What they hold in common

By the books each fund has filed, ION and LIMI hold 22% 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 Sep 30, 2026.

half

22% in common

Positions both hold, largest shared weight first
Holding ION LIMI
IGO LTD 3.74% 3.57%
PLS GROUP LTD 2.90% 9.08%
ALBEMARLE CORP 2.62% 7.46%
MINERAL RESOURCES LTD 2.51% 3.10%
ERAMET 2.93% 2.48%
LIONTOWN LTD 2.39% 3.88%
ELEVRA LITHIUM LTD 2.27% 3.11%
QUIMICA Y MINERA CHIL-SP ADR 2.88% 1.33%
SIGMA LITHIUM CORP 3.19% 0.97%
AMG CRITICAL MATERIALS N.V. 1.92% 0.96%
Only in ION
PACIFIC METALS CO LTD 5.04%
PT TIMAH (PERSERO) TBK 3.55%
VALE INDONESIA TBK 3.39%
TIBET MINERAL DEVELOPMENT-A 2.93%
AFRICAN RAINBOW MINERALS LTD 2.88%
ANTAM PERSERO TBK PT 2.71%
ZANGGE MINING CO LTD-A 2.70%
QINGHAI SALT LAKE INDUSTRY-A 2.50%
Only in LIMI
TINCI 7.02%
Tianqi Lithium Corp 5.52%
Zhejiang Huayou Cobalt Co Ltd 5.35%
Ganfeng Lithium Group Co Ltd 3.88%
Xiamen Tungsten Co Ltd 3.44%
CAPCHEM 3.35%
Lithium Americas Corp 3.16%
Core Lithium Ltd 2.96%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

22% of the two portfolios are the same securities at the same weight.

Performance, window by window

Total returnvs the S&P 500vs the Nasdaq-100
WindowIONLIMIIONLIMIIONLIMI
3 months−10.4%−15.3%−12.9 pts−21.4 pts−12.5 pts−20.8 pts
6 months−19.6%−16.6%−36.6 pts−38.8 pts−46.5 pts−49.2 pts
1 year+18.9%+12.1%+3.1 pts−6.4 pts−4.9 pts−14.0 pts
3 years+48.5%not published−36.5 ptsnot published−61.5 ptsnot published
Since launch
ION Dec 2022 · LIMI Sep 2024
+16.1%+62.3%−81.1 pts+24.2 pts−141.7 pts+7.4 pts

ION and LIMI over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

ION
ProShares S&P Global Core Battery Metals ETF · Holds 53 stocks in lithium and battery metals, 3% of its weight in S&P 500 companies
LIMI
Themes Lithium & Battery Metal Miners ETF · Holds 41 stocks in lithium and battery metals, 8% of its weight in S&P 500 companies
Issuer ProShares Themes
Theme Lithium and battery metals Lithium and battery metals
In the S&P 500 2.6% 7.5%
Active share vs the S&P 500 100.0% 100.0%
In the Nasdaq-100 0.0% 0.0%
Holdings 53 41
Top ten, share of the fund 33.4% 52.6%
Expense ratio 0.58% 0.35%
Fee for the differing part 0.58% 0.35%
Total return, 1 year +18.9% +12.1%
vs the S&P 500 +3.1 pts −6.4 pts
vs the Nasdaq-100 −4.9 pts −14.0 pts
Below its high −32.9% −36.3%
Net assets $12m $2m

ION and LIMI on the same fields, as of Sep 30, 2026. Source: ETFIQ.

ION in plain words

By weight, 3% of ION's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 33% of the fund across 53 positions, as published by its issuer for Sep 30, 2026. Over the year to Sep 30, 2026 the fund returned +18.9% with distributions reinvested against +15.7% for the S&P 500, so a holder was ahead by 3.1 pts. It sits 32.9% below its all-time high of May 6, 2026.

LIMI in plain words

By weight, 8% of LIMI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 53% of the fund across 41 positions, as filed for Jun 30, 2026. Over the year to Sep 30, 2026 the fund returned +12.1% with distributions reinvested against +18.5% for the S&P 500, so a holder was behind by 6.4 pts. It sits 36.3% below its all-time high of May 6, 2026.

Questions people ask

Do ION and LIMI hold the same stocks?
By their latest filings, 22% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, ION or LIMI?
ION has 3% of its weight in S&P 500 names and LIMI has 8%, so ION differs more from the index.
Which is cheaper, ION or LIMI?
ION charges 0.58% a year and LIMI charges 0.35%, so LIMI is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, ION against LIMI, data as of Sep 30, 2026. https://etfiq.com/compare/themes/ion-vs-limi

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.