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Side-by-side financial comparison of QWEST CORP (CTBB) and MongoDB, Inc. (MDB). Click either name above to swap in a different company.

QWEST CORP is the larger business by last-quarter revenue ($1.1B vs $628.3M, roughly 1.8× MongoDB, Inc.). MongoDB, Inc. runs the higher net margin — -0.3% vs -187.5%, a 187.1% gap on every dollar of revenue. On growth, MongoDB, Inc. posted the faster year-over-year revenue change (18.7% vs -15.0%). QWEST CORP produced more free cash flow last quarter ($160.0M vs $141.8M). Over the past eight quarters, MongoDB, Inc.'s revenue compounded faster (17.1% CAGR vs -8.6%).

Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies. It was originally named Mountain States Telephone and Telegraph Company, later becoming known as Mountain Bell, then US West Communications, Inc. from 1991 to 2000. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well.

MongoDB, Inc. is an American software company that develops and provides commercial support for the source-available database engine MongoDB, a database for unstructured data. Over the years, the company has expanded the product from its NoSQL roots to have broader appeal to enterprise customers, such as adding ACID and transactions.

CTBB vs MDB — Head-to-Head

Bigger by revenue
CTBB
CTBB
1.8× larger
CTBB
$1.1B
$628.3M
MDB
Growing faster (revenue YoY)
MDB
MDB
+33.7% gap
MDB
18.7%
-15.0%
CTBB
Higher net margin
MDB
MDB
187.1% more per $
MDB
-0.3%
-187.5%
CTBB
More free cash flow
CTBB
CTBB
$18.2M more FCF
CTBB
$160.0M
$141.8M
MDB
Faster 2-yr revenue CAGR
MDB
MDB
Annualised
MDB
17.1%
-8.6%
CTBB

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
CTBB
CTBB
MDB
MDB
Revenue
$1.1B
$628.3M
Net Profit
$-2.1B
$-2.0M
Gross Margin
67.9%
71.5%
Operating Margin
-183.2%
-2.9%
Net Margin
-187.5%
-0.3%
Revenue YoY
-15.0%
18.7%
Net Profit YoY
-627.9%
79.5%
EPS (diluted)

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CTBB
CTBB
MDB
MDB
Q4 25
$1.1B
$628.3M
Q3 25
$1.1B
$591.4M
Q2 25
$1.1B
$549.0M
Q1 25
$1.2B
$548.4M
Q4 24
$1.3B
$529.4M
Q3 24
$1.3B
$478.1M
Q2 24
$1.3B
$450.6M
Q1 24
$1.3B
$458.0M
Net Profit
CTBB
CTBB
MDB
MDB
Q4 25
$-2.1B
$-2.0M
Q3 25
$176.0M
$-47.0M
Q2 25
$277.0M
$-37.6M
Q1 25
$284.0M
$15.8M
Q4 24
$391.0M
$-9.8M
Q3 24
$365.0M
$-54.5M
Q2 24
$378.0M
$-80.6M
Q1 24
$353.0M
$-55.5M
Gross Margin
CTBB
CTBB
MDB
MDB
Q4 25
67.9%
71.5%
Q3 25
65.3%
71.0%
Q2 25
68.2%
71.2%
Q1 25
69.3%
72.8%
Q4 24
71.2%
74.4%
Q3 24
69.9%
73.2%
Q2 24
71.6%
72.8%
Q1 24
71.9%
75.0%
Operating Margin
CTBB
CTBB
MDB
MDB
Q4 25
-183.2%
-2.9%
Q3 25
22.3%
-11.0%
Q2 25
33.1%
-9.8%
Q1 25
33.7%
-3.4%
Q4 24
40.7%
-5.3%
Q3 24
38.5%
-14.9%
Q2 24
40.3%
-21.8%
Q1 24
37.6%
-15.5%
Net Margin
CTBB
CTBB
MDB
MDB
Q4 25
-187.5%
-0.3%
Q3 25
16.1%
-8.0%
Q2 25
24.3%
-6.9%
Q1 25
24.7%
2.9%
Q4 24
30.2%
-1.8%
Q3 24
28.2%
-11.4%
Q2 24
28.7%
-17.9%
Q1 24
26.8%
-12.1%

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CTBB
CTBB
MDB
MDB
Cash + ST InvestmentsLiquidity on hand
$39.0M
$834.1M
Total DebtLower is stronger
$1.7B
Stockholders' EquityBook value
$10.9B
$2.9B
Total Assets
$15.8B
$3.6B
Debt / EquityLower = less leverage
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTBB
CTBB
MDB
MDB
Q4 25
$39.0M
$834.1M
Q3 25
$36.0M
$647.1M
Q2 25
$25.0M
$657.8M
Q1 25
$40.0M
$490.1M
Q4 24
$26.0M
$673.1M
Q3 24
$22.0M
$1.3B
Q2 24
$18.0M
$815.7M
Q1 24
$14.0M
$803.0M
Total Debt
CTBB
CTBB
MDB
MDB
Q4 25
$1.7B
Q3 25
$1.7B
Q2 25
$1.7B
Q1 25
$1.7B
Q4 24
$1.7B
Q3 24
$1.7B
Q2 24
$1.9B
Q1 24
$1.9B
Stockholders' Equity
CTBB
CTBB
MDB
MDB
Q4 25
$10.9B
$2.9B
Q3 25
$13.0B
$2.9B
Q2 25
$12.8B
$3.0B
Q1 25
$12.5B
$2.8B
Q4 24
$12.2B
$1.5B
Q3 24
$11.9B
$1.4B
Q2 24
$11.5B
$1.3B
Q1 24
$11.1B
$1.1B
Total Assets
CTBB
CTBB
MDB
MDB
Q4 25
$15.8B
$3.6B
Q3 25
$17.9B
$3.5B
Q2 25
$17.8B
$3.6B
Q1 25
$17.6B
$3.4B
Q4 24
$17.4B
$3.2B
Q3 24
$17.0B
$3.1B
Q2 24
$16.6B
$3.0B
Q1 24
$16.4B
$2.9B
Debt / Equity
CTBB
CTBB
MDB
MDB
Q4 25
0.15×
Q3 25
0.13×
Q2 25
0.13×
Q1 25
0.13×
Q4 24
0.14×
Q3 24
0.14×
Q2 24
0.17×
Q1 24
0.17×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CTBB
CTBB
MDB
MDB
Operating Cash FlowLast quarter
$402.0M
$143.5M
Free Cash FlowOCF − Capex
$160.0M
$141.8M
FCF MarginFCF / Revenue
14.5%
22.6%
Capex IntensityCapex / Revenue
22.0%
0.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$938.0M
$346.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTBB
CTBB
MDB
MDB
Q4 25
$402.0M
$143.5M
Q3 25
$427.0M
$72.1M
Q2 25
$480.0M
$109.9M
Q1 25
$453.0M
$50.5M
Q4 24
$548.0M
$37.4M
Q3 24
$627.0M
$-1.4M
Q2 24
$548.0M
$63.6M
Q1 24
$471.0M
$54.6M
Free Cash Flow
CTBB
CTBB
MDB
MDB
Q4 25
$160.0M
$141.8M
Q3 25
$252.0M
$71.6M
Q2 25
$276.0M
$108.3M
Q1 25
$250.0M
$24.6M
Q4 24
$277.0M
$35.5M
Q3 24
$396.0M
$-2.4M
Q2 24
$280.0M
$63.1M
Q1 24
$194.0M
$51.9M
FCF Margin
CTBB
CTBB
MDB
MDB
Q4 25
14.5%
22.6%
Q3 25
23.1%
12.1%
Q2 25
24.2%
19.7%
Q1 25
21.7%
4.5%
Q4 24
21.4%
6.7%
Q3 24
30.6%
-0.5%
Q2 24
21.3%
14.0%
Q1 24
14.7%
11.3%
Capex Intensity
CTBB
CTBB
MDB
MDB
Q4 25
22.0%
0.3%
Q3 25
16.0%
0.1%
Q2 25
17.9%
0.3%
Q1 25
17.6%
4.7%
Q4 24
20.9%
0.4%
Q3 24
17.9%
0.2%
Q2 24
20.4%
0.1%
Q1 24
21.0%
0.6%
Cash Conversion
CTBB
CTBB
MDB
MDB
Q4 25
Q3 25
2.43×
Q2 25
1.73×
Q1 25
1.60×
3.19×
Q4 24
1.40×
Q3 24
1.72×
Q2 24
1.45×
Q1 24
1.33×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CTBB
CTBB

Nonrelated Party$665.0M60%
Other$436.0M40%

MDB
MDB

Mongo DB Atlas Related$470.4M75%
Other Subscription$138.7M22%
Services$19.2M3%

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