Do ARKX and GALX hold the same stocks?

By their latest filings, 17% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, ARKX or GALX?

ARKX has 51% of its weight in S&P 500 names and GALX has 14%, so GALX differs more from the index.

Which is cheaper, ARKX or GALX?

ARKX charges 0.75% a year and GALX charges 0.75%, so ARKX is cheaper. Fees come from each fund's prospectus.

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ARKX vs GALX: which is really different?

ARKX and GALX hold 17% of their weight in the same names. ARK Space & Defense Innovation ETF and VistaShares Space Supercycle ETF.

51.4%

ARKX in the S&P 500

13.5%

GALX in the S&P 500

+11.7%

ARKX total return, 1 year

−1.9%

GALX total return, since launch

ARKX · 1 year to Sep 30, 202649% of its weight is outside the S&P 500

51% of ARKX's weight is in S&P 500 companies and 49% is outside the index

GALX · since launch to Sep 30, 202687% of its weight is outside the S&P 500

14% of GALX's weight is in S&P 500 companies and 87% is outside the index

ETFIQ Off-Index Score · GALX scores higherHow much of it is not the index it is sold as an alternative to?

ARKX 15.9

GALX 62.3

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, ARKX and GALX hold 17% 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 Oct 1, 2026.

50%

half

17% in common

Positions both hold, largest shared weight first

Holding ARKX GALX

ROCKET LAB 5.86% 4.25%

SPACE EXPLORATION TECHN-CL A 10.84% 2.83%

KRATOS DEFENSE & SECURITY 5.49% 1.84%

L3HARRIS TECHNOLOGIES INC 6.17% 1.76%

HEICO CORP 1.48% 2.91%

BWX TECHNOLOGIES INC 1.45% 1.19%

TELEDYNE TECHNOLOGIES INC 1.08% 3.18%

INTUITIVE MACHINES INC 1.91% 1.02%

THALES SA 1.83% 0.56%

AIRBUS SE 0.90% 0.47%

LOCKHEED MARTIN CORP 0.86% 0.44%

Only in ARKX

DEERE & CO 5.60%

NVIDIA CORP 5.37%

AEROVIRONMENT INC 4.61%

ADVANCED MICRO DEVICES 4.52%

AMAZON.COM INC 4.48%

TERADYNE INC 4.14%

ALPHABET INC-CL C 3.99%

PALANTIR TECHNOLOGIES INC-A 3.89%

Only in GALX

MACOM Technology Solutions Holdings Inc 4.35%

AMETEK Inc 4.00%

MDA Space Ltd 3.87%

Moog Inc 3.66%

Frequency Electronics Inc 3.50%

Avio SpA 3.33%

Kongsberg Gruppen ASA 3.03%

5N Plus Inc 3.01%

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

17% of the two portfolios are the same securities at the same weight.

Performance, window by window

	Total return		vs the S&P 500		vs the Nasdaq-100
Window	ARKX	GALX	ARKX	GALX	ARKX	GALX
3 months	−5.7%	not published	−8.2 pts	not published	−7.8 pts	not published
6 months	+6.7%	not published	−10.3 pts	not published	−20.2 pts	not published
1 year	+11.7%	not published	−4.0 pts	not published	−12.1 pts	not published
3 years	+131.5%	not published	+46.5 pts	not published	+21.5 pts	not published
Since launch ARKX Mar 2021 · GALX Jul 2026	+57.1%	−1.9%	−50.8 pts	−3.7 pts	−85.9 pts	−6.8 pts

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

On the same fields

ARKX

ARK Space & Defense Innovation ETF · Holds 34 stocks in space, 51% of its weight in S&P 500 companies

GALX

VistaShares Space Supercycle ETF · Holds 59 stocks in space, 14% of its weight in S&P 500 companies

Issuer ARK VistaShares

Theme Space Space

In the S&P 500 51.4% 13.5%

Active share vs the S&P 500 83.6% 99.0%

In the Nasdaq-100 28.4% 0.0%

Holdings 34 59

Top ten, share of the fund 57.1% 36.2%

Expense ratio 0.75% 0.75%

Fee for the differing part 0.90% 0.76%

Total return, 1 year +11.7% −1.9% (since launch on Jul 16, 2026)

vs the S&P 500 −4.0 pts −3.7 pts

vs the Nasdaq-100 −12.1 pts −6.8 pts

Below its high −15.5% −13.0%

Net assets $737m $3m

ARKX and GALX on the same fields, as of Sep 30, 2026. Source: ETFIQ.

ARKX in plain words

By weight, 51% of ARKX's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 84%. The top ten holdings are 57% of the fund across 34 positions, as published by its issuer for Oct 1, 2026. Over the year to Sep 30, 2026 the fund returned +11.7% with distributions reinvested against +15.7% for the S&P 500, so a holder was behind by 4.0 pts. It sits 15.5% below its all-time high of May 28, 2026.

GALX in plain words

By weight, 14% of GALX's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 36% of the fund across 59 positions, as published by its issuer for Oct 1, 2026. Since it launched on Jul 16, 2026 the fund returned −1.9% with distributions reinvested against +1.8% for the S&P 500, so a holder was behind by 3.7 pts. It sits 13.0% below its all-time high of Aug 12, 2026.

Questions people ask

Do ARKX and GALX hold the same stocks?: By their latest filings, 17% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, ARKX or GALX?: ARKX has 51% of its weight in S&P 500 names and GALX has 14%, so GALX differs more from the index.
Which is cheaper, ARKX or GALX?: ARKX charges 0.75% a year and GALX charges 0.75%, so ARKX is cheaper. Fees come from each fund's prospectus.

Other comparisons

ARKX vs DIPR ARKX vs FSPC ARKX vs MARS ARKX vs NASA GALX vs MARS GALX vs NASA GALX vs ORBX GALX vs UFO

ARKX on its own →GALX on its own →How every figure is computed →Standards and sources →

Where these figures came from

ARKX filings on SEC EDGAR ↗ARKX prospectus with the expense ratio (SEC) ↗ARK page for ARKX ↗GALX filings on SEC EDGAR ↗GALX prospectus with the expense ratio (SEC) ↗VistaShares page for GALX ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement. A comparison is not a recommendation.

Cite this page

ETFIQ, ARKX against GALX, data as of Sep 30, 2026. https://etfiq.com/compare/themes/arkx-vs-galx

Open data

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