Does Jane Street Group own BLOK stock?

Yes. As of its Q2 2026 13F, Jane Street Group holds 42,390 shares of BLOK, worth $2.7M.

How many shares of BLOK does Jane Street Group own?

As of its Q2 2026 13F, Jane Street Group holds 42,390 shares of BLOK.

As of its Q2 2026 13F, Jane Street Group's BLOK position is worth $2.7M.

In Q2 2026, Jane Street Group increased its BLOK position by 1,208 shares (+2.9%).

Jane Street Group already held BLOK in its Q4 2018 13F, the earliest on record, and has listed it in 28 quarterly 13F filings.

Position history for JANE STREET GROUP, LLC's holdings in AMPLIFY ETF TR

Current Value

$2.7M

Current Shares

42,390

Total Value Change

+$595,886

Total Shares Change

-97,019

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	42,390	+2.9%	$2.7M	0.0%	$62.63	27
2026-Q1	Increased	41,182	+56.4%	$2.1M	0.0%	$49.75	37
2025-Q4	Decreased	26,329	-84.0%	$1.5M	0.0%	$56.82	0
2025-Q3	Increased	164,024	+373.7%	$11M	0.0%	$66.49	45
2025-Q2	Decreased	34,629	-75.9%	$2M	0.0%	$56.64	0
2025-Q1	Increased	143,476	+49.8%	$5.3M	0.0%	$36.58	37
2024-Q4	Decreased	95,812	-30.5%	$4.1M	0.0%	$42.84	0
2024-Q3	Decreased	137,942	-63.1%	$5.2M	0.0%	$35.16	0
2024-Q2	Increased	374,116	+36.3%	$13.3M	0.0%	$33.24	36
2024-Q1	Increased	274,508	+67.7%	$10M	0.0%	$34.15	41
2023-Q4	Decreased	163,707	-80.0%	$4.9M	0.0%	$27.98	0
2023-Q3	Increased	817,129	+303.0%	$16.3M	0.0%	$18.47	45
2023-Q2	Increased	202,784	+27.1%	$4.6M	0.0%	$21.09	33
2023-Q1	Decreased	159,595	-82.8%	$3.1M	0.0%	$17.93	0
2022-Q4	Increased	929,297	+84.0%	$14.1M	0.0%	$14.01	43
2022-Q3	Decreased	505,040	-37.1%	$9.3M	0.0%	$17.15	0
2022-Q2	Increased	803,073	+608.6%	$14.6M	0.0%	$16.80	45
2022-Q1	Increased	113,325	+241.7%	$3.9M	0.0%	$31.69	43
2021-Q4	Decreased	33,163	-63.2%	$1.3M	0.0%	$37.23	0
2021-Q3	New	90,142	-	$4M	0.0%	$36.34	37
2021-Q2	Exited	0	-100.0%	$0	0.0%	$38.80	0
2021-Q1	New	82,855	-	$4.6M	0.0%	$45.45	37
2020-Q3	Exited	0	-100.0%	$0	0.0%	$19.57	0
2020-Q2	Increased	47,542	+83.9%	$959,000	0.0%	$16.11	39
2020-Q1	Decreased	25,855	-80.5%	$397,000	0.0%	$12.27	0
2019-Q4	Increased	132,238	+239.3%	$2.5M	0.0%	$14.97	42
2019-Q3	Decreased	38,975	-2.8%	$699,000	0.0%	$14.04	0
2019-Q2	Decreased	40,090	-36.3%	$734,000	0.0%	$14.32	0
2019-Q1	Decreased	62,912	-54.9%	$1.1M	0.0%	$13.76	0
2018-Q4	First report	139,409	-	$2.1M	0.0%	$11.56	0