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MARS vs TIER

Roundhill Space & Technology ETF vs T. Rowe Price International Equity Research ETF

MARS

Roundhill Space & Technology ETF

Annual cost

0.75%

Fund size

$101M

TIER

T. Rowe Price International Equity Research ETF

Annual cost

0.38%

Fund size

$30M

Key differences

Both MARS and TIER are equity ETFs. MARS charges 0.75% a year and TIER 0.38%. The main difference: MARS follows a active selection strategy; TIER uses index tracking.

  • MARS follows a active selection strategy; TIER uses index tracking.
  • MARS covers North America; TIER covers global markets excluding the US.
  • TIER costs 0.37% less per year.
  • MARS is much larger than TIER. Larger funds are usually more liquid and less likely to close.

Side-by-side comparison

MARSTIER
Annual cost (TER)0.75%0.38%
Fund size (AUM)$101M$30M
Since20262025
Dividend yield
Asset classequityequity
Regionnorth americaglobal ex us
Strategyactive selectionindex tracking
CAGR 1YN/AN/A
CAGR 3YN/AN/A
CAGR 5YN/AN/A
Sharpe 3YN/AN/A
Volatility 1Y
Max drawdown-24.52%-12.07%

Similar to MARS and TIER