Which has grown faster, MDB or RBLX?

Over the past five years, RBLX grew revenue faster — MDB at a 31.71% CAGR versus RBLX at 32.30%.

Is MDB or RBLX more profitable?

MDB runs the higher net margin — MDB at 2.12% versus RBLX at -17.60%.

How have MDB and RBLX total returns compared?

Over the past 5 years, MDB delivered -5.82% and RBLX delivered -12.33% annualized total return. Past performance doesn't predict future results.

MongoDB, Inc. (MDB) vs Roblox Corporation (RBLX)

A side-by-side comparison of MongoDB, Inc. and Roblox Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 13, 2026. Differences are shown without an overall score or investment verdict.

MDB

MongoDB, Inc.

$30.27B

$376.34TechnologyDelayed quote: Sep 16, 2026, 4:00 PM EDT

RBLX

Roblox Corporation

$33.88B

$47.43TechnologyDelayed quote: Sep 16, 2026, 4:00 PM EDT

Total return — MDB vs RBLX

growth of $100 · dividends reinvested · last 6y

MDB +26.2% (+4.0%/yr)RBLX -34.5% (-6.8%/yr)MDB compounded faster over this window

MDB RBLX

MDB vs RBLX: by the numbers

•RBLX is the larger company ($33.88B vs $30.27B market cap).
•MDB is profitable (2.12% net margin) while RBLX runs a net loss (-17.60%).
•RBLX grew revenue faster over the past five years (32.30% vs 31.71% CAGR).

Metrics side by side

Valuation

Metric	MDB	RBLX
P/E ratio	533.59	N/A
P/S ratio	10.88	5.96
P/B ratio	10.16	222.91
EV / EBITDA	1433.90	N/A
FCF yield	2.20%	4.84%

Profitability

Metric	MDB	RBLX
Gross margin	72.69%	78.94%
Operating margin	-0.52%	-20.72%
Net margin	2.12%	-17.60%
ROE	1.98%	-658.31%
ROIC	-0.36%	-27.89%

Growth (annualized)

Metric	MDB	RBLX
Revenue CAGR (5Y)	31.71%	32.30%
FCF CAGR (5Y)	N/A	22.77%
Total return CAGR (5Y)	-5.82%	-12.33%

Frequently asked

Which has grown faster, MDB or RBLX?: Over the past five years, RBLX grew revenue faster — MDB at a 31.71% CAGR versus RBLX at 32.30%.
Is MDB or RBLX more profitable?: MDB runs the higher net margin — MDB at 2.12% versus RBLX at -17.60%.
How have MDB and RBLX total returns compared?: Over the past 5 years, MDB delivered -5.82% and RBLX delivered -12.33% annualized total return. Past performance doesn't predict future results.

Go deeper

Full MDB analysis Full RBLX analysis Interactive comparison tool

Dig into the metrics

MongoDB P/E ratio MongoDB ROE Roblox ROE MongoDB operating margin Roblox operating margin MongoDB revenue growth Roblox revenue growth MongoDB free cash flow Roblox free cash flow

MongoDB & Roblox appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 13, 2026.