What is ATI's backlog?

ATI reported $4.30B of remaining performance obligations at 27 Sep 2026, up 19% from a year earlier and down 2% from the previous quarter. That is 0.9 years of trailing revenue already under contract. Book-to-bill last quarter: 0.93.

How fast does ATI's backlog turn into revenue?

Over the last twelve months ATI recognised revenue equal to about 127% of the backlog it started each quarter with.

ATI (ATI) backlog: remaining performance obligations

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

Data as of 7 Nov 2026.

Open the interactive Backlog view ATI competitor analysis

ATI reported $4.30B of remaining performance obligations at 27 Sep 2026, up 19% from a year earlier and down 2% from the previous quarter. That is 0.9 years of trailing revenue already under contract. Book-to-bill last quarter: 0.93.
Net new backlog added in the latest quarter: -$100M.
Over the last twelve months it turned about 127% of its opening backlog into revenue (12-month conversion).
Customer prepayments (contract liabilities) cover 3.0% of the backlog.
Twelve-month book-to-bill: 1.14, i.e. 1.14 of new orders for every 1 of revenue recognised.
Backlog growth minus revenue growth: +10 points — orders are running ahead of revenue.
By backlog size it ranks 123rd among US filers the cockpit tracks.

ATI 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
27 Sep 2026	$4.30B	$5.01B	0.9 yrs	$127M
28 Jun 2026	$4.40B	$4.72B	0.9 yrs	$144M
29 Mar 2026	$4.10B	$4.59B	0.9 yrs	$154M
28 Dec 2025	$3.70B	$4.59B	0.8 yrs	$146M
28 Sep 2025	$3.60B	$4.58B	0.8 yrs	$159M
29 Jun 2025	$3.70B	$4.51B	0.8 yrs	$172M
30 Mar 2025	$4.00B	$4.46B	0.9 yrs	$187M
29 Dec 2024	$3.90B	$4.36B	0.9 yrs	$169M
29 Sep 2024	$3.90B	$4.25B	0.9 yrs	$146M
30 Jun 2024	$4.10B	$4.23B	1.0 yrs	$161M
31 Mar 2024	$3.90B	$4.18B	0.9 yrs	$162M
31 Dec 2023	$3.80B	$4.17B	0.9 yrs	$164M

Questions

What is ATI's backlog?: ATI reported $4.30B of remaining performance obligations at 27 Sep 2026, up 19% from a year earlier and down 2% from the previous quarter. That is 0.9 years of trailing revenue already under contract. Book-to-bill last quarter: 0.93.
How fast does ATI's backlog turn into revenue?: Over the last twelve months ATI recognised revenue equal to about 127% of the backlog it started each quarter with.

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.