Flagship explainer

How Quest Diagnostics Inc makes its money

Start with a dollar of revenue and follow what the filing says remains.

revenueBranching filed flows with values and percentages directly labeled. Missing filing concepts are omitted rather than estimated.Revenue$11.0B · 100%Cost of revenue$7.4B · 67%Gross profit$3.7B · 33%Operating income$1.6B · 14%Income before tax$1.3B · 12%Income tax$314M · 3%Net income$992M · 9%As of 2025-12-31 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com

Honest partial: the filing did not provide a normalized tag for Research and development, Selling, general and administrative; those components are omitted, not plugged.

Table alternative
Filed lineValue% of revenueSource
$11.0B100%
Cost of revenue$7.4B67%
$3.7B33%
$1.6B14%
Income before tax$1.3B12%
Income tax$314M3%
$992M9%
Source: · event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set
Embed this chart

View the full Quest Diagnostics Inc analysis at Buy Like Buffett