Does Citadel Advisors own ACMR stock?

Yes. As of its Q2 2026 13F, Citadel Advisors holds 636,836 shares of ACMR (Acm Research), worth $80.8M.

How many shares of ACMR does Citadel Advisors own?

As of its Q2 2026 13F, Citadel Advisors holds 636,836 shares of ACMR (Acm Research).

As of its Q2 2026 13F, Citadel Advisors' ACMR position is worth $80.8M.

In Q2 2026, Citadel Advisors increased its ACMR position from 203,378 to 636,836 shares.

Citadel Advisors first reported ACMR in its Q2 2019 13F and has listed it in 28 quarterly 13F filings.

Position history for CITADEL ADVISORS LLC's holdings in ACM RESH INC

Current Value

$80.8M

Current Shares

636,836

Total Value Change

+$80.2M

Total Shares Change

+596,725

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	636,836	+213.1%	$80.8M	0.0%	$126.89	48
2026-Q1	Increased	203,378	+42.2%	$8M	0.0%	$39.35	37
2025-Q4	Decreased	143,022	-63.8%	$5.6M	0.0%	$39.45	0
2025-Q3	Increased	394,969	+93.6%	$15.5M	0.0%	$39.13	45
2025-Q2	Decreased	204,024	-55.0%	$5.3M	0.0%	$25.90	0
2025-Q1	Increased	453,141	+27.4%	$10.6M	0.0%	$23.34	34
2024-Q4	Decreased	355,741	-26.7%	$5.4M	0.0%	$15.10	0
2024-Q3	Decreased	485,615	-29.3%	$9.9M	0.0%	$20.30	0
2024-Q2	Increased	686,673	+145.4%	$15.8M	0.0%	$23.06	45
2024-Q1	Increased	279,821	+185.6%	$8.2M	0.0%	$29.14	44
2023-Q4	Decreased	97,993	-34.9%	$1.9M	0.0%	$19.54	0
2023-Q3	Decreased	150,591	-51.1%	$2.7M	0.0%	$18.11	0
2023-Q2	Decreased	308,127	-64.2%	$4M	0.0%	$13.08	0
2023-Q1	Increased	860,929	+149.3%	$10.1M	0.0%	$11.70	45
2022-Q4	Increased	345,403	+365.3%	$2.7M	0.0%	$7.71	42
2022-Q3	New	74,237	-	$925,000	0.0%	$12.46	35
2022-Q2	Exited	0	-100.0%	$0	0.0%	$16.83	0
2022-Q1	Increased	242,973	+143.0%	$5M	0.0%	$20.69	43
2021-Q4	Increased	99,998	+384.8%	$8.5M	0.0%	$28.42	44
2021-Q3	Decreased	20,625	-67.8%	$2.3M	0.0%	$36.67	0
2021-Q2	Decreased	64,077	-49.3%	$6.6M	0.0%	$34.07	0
2021-Q1	Increased	126,445	+631.9%	$10.2M	0.0%	$26.93	45
2020-Q4	Decreased	17,276	-28.1%	$1.4M	0.0%	$27.08	0
2020-Q3	Increased	24,027	+14.0%	$1.7M	0.0%	$23.03	29
2020-Q2	Decreased	21,068	-41.7%	$1.3M	0.0%	$20.79	0
2020-Q1	Decreased	36,137	-7.7%	$1.1M	0.0%	$9.87	0
2019-Q4	Decreased	39,155	-41.2%	$722,000	0.0%	$6.15	0
2019-Q3	Increased	66,584	+66.0%	$923,000	0.0%	$4.62	37
2019-Q2	New	40,111	-	$626,000	0.0%	$5.20	34