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Side-by-side financial comparison of QUINSTREET, INC (QNST) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

QUINSTREET, INC is the larger business by last-quarter revenue ($287.8M vs $162.6M, roughly 1.8× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs 17.4%, a 37.3% gap on every dollar of revenue. On growth, QUINSTREET, INC posted the faster year-over-year revenue change (1.9% vs -10.3%). Over the past eight quarters, QUINSTREET, INC's revenue compounded faster (53.2% CAGR vs -8.1%).

QuinStreet, Inc. is a publicly traded online marketing company based in Foster City, California. The company helps generate web traffic for clients by acquiring popular domain names.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

QNST vs RBBN — Head-to-Head

Bigger by revenue
QNST
QNST
1.8× larger
QNST
$287.8M
$162.6M
RBBN
Growing faster (revenue YoY)
QNST
QNST
+12.2% gap
QNST
1.9%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
37.3% more per $
RBBN
54.8%
17.4%
QNST
Faster 2-yr revenue CAGR
QNST
QNST
Annualised
QNST
53.2%
-8.1%
RBBN

Income Statement — Q2 FY2026 vs Q1 FY2026

Metric
QNST
QNST
RBBN
RBBN
Revenue
$287.8M
$162.6M
Net Profit
$50.2M
$89.1M
Gross Margin
9.6%
42.9%
Operating Margin
0.4%
37.6%
Net Margin
17.4%
54.8%
Revenue YoY
1.9%
-10.3%
Net Profit YoY
3342.5%
EPS (diluted)
$0.87
$0.50

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
QNST
QNST
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$287.8M
$227.3M
Q3 25
$285.9M
$215.4M
Q2 25
$220.6M
Q1 25
$269.8M
$181.3M
Q4 24
$282.6M
$251.4M
Q3 24
$279.2M
$210.2M
Q2 24
$198.3M
$192.6M
Net Profit
QNST
QNST
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$50.2M
Q3 25
$4.5M
$-12.1M
Q2 25
$-11.1M
Q1 25
$4.4M
$-26.2M
Q4 24
$-1.5M
Q3 24
$-1.4M
$-13.4M
Q2 24
$-2.2M
$-16.8M
Gross Margin
QNST
QNST
RBBN
RBBN
Q1 26
42.9%
Q4 25
9.6%
53.3%
Q3 25
9.4%
50.1%
Q2 25
49.6%
Q1 25
10.3%
45.4%
Q4 24
9.5%
55.7%
Q3 24
10.2%
52.1%
Q2 24
8.8%
50.8%
Operating Margin
QNST
QNST
RBBN
RBBN
Q1 26
37.6%
Q4 25
0.4%
4.1%
Q3 25
1.7%
1.3%
Q2 25
1.9%
Q1 25
1.8%
-10.8%
Q4 24
-0.5%
13.2%
Q3 24
-0.4%
-0.4%
Q2 24
-0.7%
-1.0%
Net Margin
QNST
QNST
RBBN
RBBN
Q1 26
54.8%
Q4 25
17.4%
Q3 25
1.6%
-5.6%
Q2 25
-5.0%
Q1 25
1.6%
-14.5%
Q4 24
-0.5%
Q3 24
-0.5%
-6.4%
Q2 24
-1.1%
-8.7%
EPS (diluted)
QNST
QNST
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.87
$0.50
Q3 25
$0.08
$-0.07
Q2 25
$-0.06
Q1 25
$0.08
$-0.15
Q4 24
$-0.03
$0.05
Q3 24
$-0.02
$-0.08
Q2 24
$-0.04
$-0.10

Balance Sheet & Financial Strength

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

Metric
QNST
QNST
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$107.0M
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$294.4M
$419.1M
Total Assets
$493.0M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
QNST
QNST
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$107.0M
$96.4M
Q3 25
$101.3M
$74.8M
Q2 25
$60.5M
Q1 25
$81.8M
$71.2M
Q4 24
$57.8M
$87.8M
Q3 24
$25.0M
$37.2M
Q2 24
$50.5M
$64.6M
Total Debt
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$348.3M
Q3 24
$349.1M
Q2 24
$350.0M
Stockholders' Equity
QNST
QNST
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$294.4M
$449.0M
Q3 25
$246.7M
$360.1M
Q2 25
$370.4M
Q1 25
$235.5M
$381.8M
Q4 24
$224.3M
$404.6M
Q3 24
$219.8M
$395.5M
Q2 24
$216.8M
$405.0M
Total Assets
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
$493.0M
$1.2B
Q3 25
$442.6M
$1.1B
Q2 25
$1.1B
Q1 25
$417.2M
$1.1B
Q4 24
$409.6M
$1.2B
Q3 24
$401.2M
$1.1B
Q2 24
$368.5M
$1.1B
Debt / Equity
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

Cash Flow & Capital Efficiency

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

Metric
QNST
QNST
RBBN
RBBN
Operating Cash FlowLast quarter
$21.6M
Free Cash FlowOCF − Capex
$20.7M
FCF MarginFCF / Revenue
7.2%
Capex IntensityCapex / Revenue
0.3%
Cash ConversionOCF / Net Profit
0.43×
TTM Free Cash FlowTrailing 4 quarters
$106.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
$21.6M
$29.2M
Q3 25
$19.6M
$26.5M
Q2 25
$-795.0K
Q1 25
$30.1M
$-3.5M
Q4 24
$38.7M
$61.8M
Q3 24
$-13.7M
$-14.8M
Q2 24
$16.6M
$-9.8M
Free Cash Flow
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
$20.7M
$27.3M
Q3 25
$18.4M
$21.0M
Q2 25
$-6.5M
Q1 25
$29.5M
$-15.7M
Q4 24
$38.2M
$53.8M
Q3 24
$-14.1M
$-23.7M
Q2 24
$15.4M
$-12.9M
FCF Margin
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
7.2%
12.0%
Q3 25
6.4%
9.7%
Q2 25
-2.9%
Q1 25
10.9%
-8.7%
Q4 24
13.5%
21.4%
Q3 24
-5.1%
-11.3%
Q2 24
7.8%
-6.7%
Capex Intensity
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
0.3%
0.9%
Q3 25
0.4%
2.6%
Q2 25
2.6%
Q1 25
0.2%
6.7%
Q4 24
0.2%
3.2%
Q3 24
0.2%
4.2%
Q2 24
0.6%
1.6%
Cash Conversion
QNST
QNST
RBBN
RBBN
Q1 26
Q4 25
0.43×
Q3 25
4.32×
Q2 25
Q1 25
6.82×
Q4 24
Q3 24
Q2 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

QNST
QNST

Financial Service$216.8M75%
Home Services And Other Revenue$71.0M25%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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