Arm reported $2.42B of remaining performance obligations at 30 Sep 2026, up 8% from a year earlier and up 14% from the previous quarter. That is 0.4 years of trailing revenue already under contract. Book-to-bill last quarter: 1.21.
Net new backlog added in the latest quarter: $300M.
Over the last twelve months it turned about 255% of its opening backlog into revenue (12-month conversion).
33% of the backlog is due within the next twelve months.
Customer prepayments (contract liabilities) cover 36.1% of the backlog.
Twelve-month book-to-bill: 1.03, i.e. 1.03 of new orders for every 1 of revenue recognised.
Backlog growth minus revenue growth: -16 points — revenue is catching up with orders.
By backlog size it ranks 169th among US filers the cockpit tracks.
Arm 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
$2.42B
$5.46B
0.4 yrs
$875M
30 Jun 2026
$2.12B
$5.16B
0.4 yrs
$939M
31 Mar 2026
$2.07B
$4.92B
0.4 yrs
$1.05B
31 Dec 2025
$2.15B
$4.67B
0.5 yrs
$1.05B
30 Sep 2025
$2.25B
$4.41B
0.5 yrs
$1.03B
30 Jun 2025
$2.23B
$4.12B
0.5 yrs
$1.00B
31 Mar 2025
$2.23B
$4.01B
0.6 yrs
$911M
31 Dec 2024
$2.32B
$3.69B
0.6 yrs
$926M
30 Sep 2024
$2.38B
$3.54B
0.7 yrs
$922M
30 Jun 2024
$2.17B
$3.50B
0.6 yrs
$924M
31 Mar 2024
$2.48B
$3.23B
0.8 yrs
$915M
31 Dec 2023
$2.43B
n/a
n/a
$957M
Questions
What is Arm's backlog?
Arm reported $2.42B of remaining performance obligations at 30 Sep 2026, up 8% from a year earlier and up 14% from the previous quarter. That is 0.4 years of trailing revenue already under contract. Book-to-bill last quarter: 1.21.
How fast does Arm's backlog turn into revenue?
Over the last twelve months Arm recognised revenue equal to about 255% 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.