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ROKTvsMARSETF Comparison
SPDR S&P Kensho Final Frontiers ETF (ROKT) and Roundhill Space & Technology ETF (MARS) belong to the same industry segment: Space & Deep Sea. ROKT's top 3 sector exposures are Industrials, Information Technology and Energy. ROKT is less expensive with a Total Expense Ratio (TER) of 0.45%, versus 0.75% for MARS. Run a side-by-side ETF comparison of ROKT and MARS below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
ROKT vs MARS performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ROKT MARS | +0.38%n/a | +21.52%n/a | +17.91%n/a | +94.18%n/a | +153.28%n/a | +150.58%n/a |
| Flows | ROKT MARS | +$5M- | +$33M- | +$29M- | +$39M- | +$35M- | +$30M- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ROKT MARS | +33.53%n/a | +27.93%n/a | +21.99%n/a | +21.55%n/a |
| Max drawdown | ROKT MARS | -8.62%n/a | -15.08%n/a | -23.27%n/a | -23.28%n/a |
| Max drawdown duration | ROKT MARS | 22dn/a | 43dn/a | 150dn/a | 718dn/a |
ROKT | MARS | |
Last sale 3/13/2026 at 1:30 PM | $100.13 | |
| Previous close 03/12/2026 | $100.76 | |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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ROKT | MARS | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
ROKT | MARS | |
|---|---|---|
| Last price | $100.13 | – |
| 1D performance | -0.63% | – |
| AuM | $77.17 M | $6.20 M |
| E/R | 0.45% | 0.75% |
ROKT | MARS | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | SPDR | Roundhill Investments |
| Benchmark | S&P Kensho Final Frontiers Index | - |
| N° of holdings | 32 | - |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 22, 2018 | March 5, 2026 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Top 15 holdings
Which ETF is bigger: ROKT or MARS?
As of March 13, 2026, ROKT holds $77.17 M in assets under management (AUM), while MARS manages $6.20 M.
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