Which has grown faster, MDB or RBLX?

Over the past five years, RBLX grew revenue faster — MDB at a 32.32% CAGR versus RBLX at 35.75%.

Which has been the better investment, MDB or RBLX?

Over the past 5-year, MDB delivered the higher annualized total return — MDB at 0.52% versus RBLX at -14.13%. Past performance doesn't predict future results.

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

MDB leads on 6 of 10 compared metrics.

A side-by-side comparison of MongoDB, Inc. and Roblox Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 14, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Total return — MDB vs RBLX

growth of $100 · last 5y

MDB +16.4%RBLX -37.7%MDB compounded faster

MDB RBLX

MDB vs RBLX: by the numbers

•RBLX is the larger company ($31.01B vs $27.57B market cap).
•Both run net losses; MDB's is the smaller (-1.12% vs -20.69% net margin).
•RBLX grew revenue faster over the past five years (35.75% vs 32.32% CAGR).

Which is better, MDB or RBLX?

Metric tally: MDB 6 · RBLX 4

It depends on what you're optimizing for:

GrowthRBLX(faster 5Y revenue CAGR)

QualityMDB(higher ROIC)

Metrics side by side

Valuation

Metric	MDB	RBLX
Forward P/E	46.83	—
P/S ratio	10.75	5.82●
P/B ratio	9.53●	71.35
EV / EBITDA	1138.23	—
FCF yield	2.14%	5.33%●

Profitability

Metric	MDB	RBLX
Gross margin	71.97%	78.45%●
Operating margin	-4.16%●	-24.01%
Net margin	-1.12%●	-20.69%
ROE	-0.99%●	-253.70%
ROIC	-4.42%●	-27.81%

Growth (annualized)

Metric	MDB	RBLX
Revenue CAGR (5Y)	32.32%	35.75%●
FCF CAGR (5Y)	—	25.94%
Total return CAGR (5Y)	0.52%●	-14.13%

Frequently asked

Which is better, MDB or RBLX?: It depends on your goal. growth: RBLX (faster 5Y revenue CAGR); quality: MDB (higher ROIC). Across all compared metrics, MDB leads 6 to 4.
Which has grown faster, MDB or RBLX?: Over the past five years, RBLX grew revenue faster — MDB at a 32.32% CAGR versus RBLX at 35.75%.
Which has been the better investment, MDB or RBLX?: Over the past 5-year, MDB delivered the higher annualized total return — MDB at 0.52% versus RBLX at -14.13%. 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 Roblox P/E ratio MongoDB dividend yield Roblox dividend yield 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 June 14, 2026.