What is Martin Marietta Materials's backlog?

Martin Marietta Materials reported $219M of remaining performance obligations at 30 Sep 2026, down 3% from a year earlier and down 9% from the previous quarter. That is 0.0 years of trailing revenue already under contract. Book-to-bill last quarter: 0.99.

Martin Marietta Materials (MLM) backlog: remaining performance obligations

How much revenue Martin Marietta Materials already has under contract, how fast it converts, and who it is with.

Data as of 7 Nov 2026.

Open the interactive Backlog view Martin Marietta Materials competitor analysis

Martin Marietta Materials reported $219M of remaining performance obligations at 30 Sep 2026, down 3% from a year earlier and down 9% from the previous quarter. That is 0.0 years of trailing revenue already under contract. Book-to-bill last quarter: 0.99.
Net new backlog added in the latest quarter: -$21.0M.
Twelve-month book-to-bill: 1.00, i.e. 1.00 of new orders for every 1 of revenue recognised.
Backlog growth minus revenue growth: -22 points — revenue is catching up with orders.
By backlog size it ranks 374th among US filers the cockpit tracks.

Martin Marietta Materials backlog history

Remaining performance obligations at each quarter end (bars) against trailing twelve-month revenue (line).

Amounts in USD. Source: SEC XBRL filings.
Quarter end	Backlog (RPO)	TTM revenue	Coverage	Customer prepayments
30 Sep 2026	$219M	$7.21B	0.0 yrs	n/a
30 Jun 2026	$240M	$6.69B	0.0 yrs	n/a
31 Mar 2026	$243M	$6.35B	0.0 yrs	n/a
31 Dec 2025	$162M	$6.15B	0.0 yrs	n/a
30 Sep 2025	$225M	$6.03B	0.0 yrs	n/a
30 Jun 2025	$252M	$5.83B	0.0 yrs	n/a
31 Mar 2025	$297M	$5.77B	0.1 yrs	n/a
31 Dec 2024	$255M	$5.66B	0.0 yrs	n/a
30 Sep 2024	$322M	$4.93B	0.1 yrs	$17.0M
30 Jun 2024	$377M	$5.28B	0.1 yrs	$10.0M
31 Mar 2024	$246M	$5.55B	0.0 yrs	$9.00M
31 Dec 2023	$251M	$5.85B	0.0 yrs	$10.0M

Questions

What is Martin Marietta Materials's backlog?: Martin Marietta Materials reported $219M of remaining performance obligations at 30 Sep 2026, down 3% from a year earlier and down 9% from the previous quarter. That is 0.0 years of trailing revenue already under contract. Book-to-bill last quarter: 0.99.

About these numbers

Remaining performance obligations (RPO) are revenue a company has contracted but not yet recognised, as reported in its SEC filings (XBRL tag RevenueRemainingPerformanceObligation). Coverage = backlog ÷ trailing twelve-month revenue. Book-to-bill = (change in backlog + revenue) ÷ revenue. Conversion = revenue recognised ÷ the backlog at the start of each quarter, summed over four quarters. Counterparty values come from company filings and releases.