Summary Verdict
RBLX: 4—ACIW: 1wins
Rule of 40
63.5RBLX
28.0ACIW
check_circleRBLX leads
Revenue Growth
35.8%RBLX
10.4%ACIW
check_circleRBLX leads
Gross Margin
89%RBLX
49%ACIW
check_circleRBLX leads
FCF Margin
27.7%RBLX
17.6%ACIW
check_circleRBLX leads
Operating Margin
-25.2%RBLX
18.8%ACIW
check_circleACIW leads
NRR
—RBLX
—ACIW
Metric
Rule of 40Efficiency score
RBLX
63.5check_circle
ACIW
28.0
Revenue GrowthYoY
RBLX
35.8%check_circle
ACIW
10.4%
Gross Margin% of revenue
RBLX
89%check_circle
ACIW
49%
FCF MarginFree cash flow
RBLX
27.7%check_circle
ACIW
17.6%
Operating MarginGAAP
RBLX
-25.2%
ACIW
18.8%check_circle
NRRNet retention
RBLX
N/A
ACIW
N/A
EV / RevenueValuation multiple
RBLX
N/A
ACIW
N/A
Market CapUSD
RBLX
N/A
ACIW
N/A
ARR GrowthYoY
RBLX
N/A
ACIW
N/A
CAC PaybackMonths to recover
RBLX
N/A
ACIW
N/A
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insights
Analysis
As of Q4 2025, Roblox Corp trades at N/A EV/Revenue versus ACI WORLDWIDE, INC. at N/A. On the Rule of 40, Roblox Corp scores 63.5 compared to ACI WORLDWIDE, INC.'s 28.0, placing Roblox Corp ahead in operating efficiency. Gross margins stand at Roblox Corp 89% vs ACI WORLDWIDE, INC. 49%.
Sector Context
Both companies operate in the Vertical SaaS sector. The median columns above show where each company stands relative to their peers.