MR
MRK
Dec 31, 2025
Quarter ended Dec 31, 2025 · FY2025 Q4

Merck & Co., Inc. stock research

Merck & (MRK) Free Cash Flow — Quarter Ended Dec 31, 2025

Merck's free cash flow margin weakened in the current quarter compared to both the preceding quarter and the same quarter one year earlier. Operating cash flow declined while capital expenditure increased slightly, resulting in lower free cash flow.

Free cash flow takeaway

A quick read on the company's cash generation and what it means for investors.

Merck's free cash flow margin weakened in the current quarter compared to both the preceding quarter and the same quarter one year earlier. Operating cash flow declined while capital expenditure increased slightly, resulting in lower free cash flow.

  • Revenue was lower than the preceding quarter but higher than the year-ago quarter. Operating cash flow decreased, and capital expenditure rose, leading to a free cash flow margin that was lower than both comparison periods.
  • Compared to the preceding quarter, revenue, operating cash flow, and free cash flow were all lower, and the free cash flow margin weakened. Versus the same quarter one year earlier, revenue was higher, but operating cash flow and free cash flow were lower, and the margin also weakened.

FCF snapshot

Quarterly and TTM cash-flow metrics with the minimum valuation context.

TTM free cash flow

$12.4B

Trailing twelve-month free cash flow.

Quarter free cash flow

$1.8B

Free cash flow in the selected fiscal quarter.

Operating cash flow

$2.9B

Cash generated by operations before capital spending.

CapEx

$1.0B

Capital spending and related asset purchases.

FCF margin

11.1%

The share of revenue converted into free cash flow.

Cash flow trend

A short quarterly history shows whether FCF is scaling with revenue or only spiking for one period.

PeriodRevenueOperating CFCapExFCFFCF margin
2025-03-31$15.5B$2.5B$1.3B$1.2B7.5%
2025-06-30$15.8B$3.3B$764.0M$2.5B16.0%
2025-09-30$17.3B$7.8B$987.0M$6.8B39.6%
2025-12-31$16.4B$2.9B$1.0B$1.8B11.1%

Cash conversion quality

Checks that separate high-quality free cash flow from accounting noise or working-capital timing.

FCF / net income61.6%Shows whether accounting earnings convert into cash.
CapEx / revenue6.3%Lower capital intensity usually supports FCF margin.
Net cash-$34.8BCash and equivalents minus total debt.

Recent events shaping cash flow

Near-term business events that help explain the free cash flow result.

Watch

Operating Cash Flow Decline

Operating cash flow decreased substantially from both the prior quarter and the year-ago quarter, driving a lower free cash flow margin despite a slight increase in capital expenditure.

The reduced cash generation may constrain the company's ability to fund investments and shareholder returns, as highlighted in the liquidity discussion.

What the cash flow says

How to interpret the company's free cash flow beyond the headline number.

Revenue was lower than the preceding quarter but higher than the year-ago quarter. Operating cash flow decreased, and capital expenditure rose, leading to a free cash flow margin that was lower than both comparison periods.

Compared to the preceding quarter, revenue, operating cash flow, and free cash flow were all lower, and the free cash flow margin weakened. Versus the same quarter one year earlier, revenue was higher, but operating cash flow and free cash flow were lower, and the margin also weakened.

Monitor the trajectory of operating cash flow, as the full-year filing noted higher income tax payments and increased collaboration payments as factors.