Do MARS and WARP hold the same stocks?

By their latest filings, 75% of their books are the same securities at the same weight, which is close to holding one of them twice. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, MARS or WARP?

MARS has 0% of its weight in S&P 500 names and WARP has 5%, so MARS differs more from the index.

Which is cheaper, MARS or WARP?

MARS charges 0.75% a year and WARP charges 0.50%, so WARP is cheaper. Fees come from each fund's prospectus.

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MARS vs WARP: which is really different?

MARS and WARP hold 75% of their weight in the same names. Roundhill Space & Technology ETF and VanEck Space ETF.

0.0%

MARS in the S&P 500

4.9%

WARP in the S&P 500

+1.4%

MARS total return, since launch

−19.9%

WARP total return, since launch

MARS · 6 months to Sep 30, 2026100% of its weight is outside the S&P 500

0% of MARS's weight is in S&P 500 companies and 100% is outside the index

WARP · 3 months to Sep 30, 202695% of its weight is outside the S&P 500

5% of WARP's weight is in S&P 500 companies and 95% is outside the index

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

MARS 92

WARP 92

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, MARS and WARP hold 75% 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 Sep 30, 2026.

50%

half

75% in common

Positions both hold, largest shared weight first

Holding MARS WARP

Space Exploration Technologies Corp 24.39% 20.43%

Rocket Lab Corp 10.05% 14.52%

AST SpaceMobile Inc 7.02% 6.46%

Viasat Inc 4.69% 4.86%

Globalstar Inc 5.07% 4.57%

Planet Labs PBC 3.63% 4.29%

Iridium Communications Inc 3.45% 4.58%

MDA Space Ltd 3.27% 4.62%

Firefly Aerospace Inc 3.13% 4.46%

Intuitive Machines Inc 2.67% 3.44%

Redwire Corp 2.26% 4.38%

SES SA 2.04% 2.71%

Only in MARS

OHB SE 3.21%

SKY Perfect JSAT Corp 2.91%

Telesat Corp 2.21%

Eutelsat Communications SACA 2.13%

Synspective Inc 1.68%

York Space Systems Inc 1.57%

BlackSky Technology Inc 1.34%

Satellogic Inc 1.34%

Only in WARP

Echostar Corp 4.89%

Sky Perfect Jsat Holdings Inc 3.50%

Nextnav Inc 2.35%

Hawkeye 360 Inc 2.00%

Eutelsat Communications Sa 1.35%

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

75% 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	MARS	WARP	MARS	WARP	MARS	WARP
3 months	−19.7%	−18.7%	−22.2 pts	−21.2 pts	−21.8 pts	−20.8 pts
6 months	−5.6%	not published	−22.6 pts	not published	−32.5 pts	not published
Since launch MARS Mar 2026 · WARP May 2026	+1.4%	−19.9%	−11.4 pts	−24.7 pts	−20.5 pts	−26.6 pts

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

On the same fields

MARS

Roundhill Space & Technology ETF · Holds 29 stocks in space, 0% of its weight in S&P 500 companies

WARP

VanEck Space ETF · Holds 20 stocks in space, 5% of its weight in S&P 500 companies

Issuer Roundhill VanEck

Theme Space Space

In the S&P 500 0.0% 4.9%

Active share vs the S&P 500 100.0% 100.0%

In the Nasdaq-100 0.0% 0.0%

Holdings 29 20

Top ten, share of the fund 67.9% 73.8%

Expense ratio 0.75% 0.50%

Fee for the differing part 0.75% 0.50%

Total return, 1 year +1.4% (since launch on Mar 5, 2026) −19.9% (since launch on May 7, 2026)

vs the S&P 500 −11.4 pts −24.7 pts

vs the Nasdaq-100 −20.5 pts −26.6 pts

Below its high −44.9% −47.2%

Net assets $46m $43m

MARS and WARP on the same fields, as of Sep 30, 2026. Source: ETFIQ.

MARS in plain words

By weight, 0% of MARS'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 68% of the fund across 29 positions, as published by its issuer for Sep 30, 2026. Since it launched on Mar 5, 2026 the fund returned +1.4% with distributions reinvested against +12.8% for the S&P 500, so a holder was behind by 11.4 pts. It sits 44.9% below its all-time high of May 28, 2026.

WARP in plain words

By weight, 5% of WARP'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 74% of the fund across 20 positions, as published by its issuer for Sep 30, 2026. Since it launched on May 7, 2026 the fund returned −19.9% with distributions reinvested against +4.8% for the S&P 500, so a holder was behind by 24.7 pts. It sits 47.2% below its all-time high of May 28, 2026.

Questions people ask

Do MARS and WARP hold the same stocks?: By their latest filings, 75% of their books are the same securities at the same weight, which is close to holding one of them twice. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, MARS or WARP?: MARS has 0% of its weight in S&P 500 names and WARP has 5%, so MARS differs more from the index.
Which is cheaper, MARS or WARP?: MARS charges 0.75% a year and WARP charges 0.50%, so WARP is cheaper. Fees come from each fund's prospectus.

Other comparisons

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

MARS on its own →WARP on its own →How every figure is computed →Standards and sources →

Where these figures came from

MARS filings on SEC EDGAR ↗MARS prospectus with the expense ratio (SEC) ↗Roundhill page for MARS ↗WARP filings on SEC EDGAR ↗WARP prospectus with the expense ratio (SEC) ↗VanEck website ↗

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, MARS against WARP, data as of Sep 30, 2026. https://etfiq.com/compare/themes/mars-vs-warp

Open data

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