Question 1

Does Capital Fund Management own CIEN stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Capital Fund Management holds 51,538 shares of CIEN (Ciena), worth $25.3M.

Question 2

How many shares of CIEN does Capital Fund Management own?

Accepted Answer

As of its Q2 2026 13F, Capital Fund Management holds 51,538 shares of CIEN (Ciena).

Question 3

What is Capital Fund Management's CIEN position worth?

Accepted Answer

As of its Q2 2026 13F, Capital Fund Management's CIEN position is worth $25.3M.

Question 4

Is Capital Fund Management buying or selling CIEN?

Accepted Answer

In Q2 2026, Capital Fund Management increased its CIEN position by 34,052 shares (+194.7%).

Question 5

When did Capital Fund Management first buy CIEN?

Accepted Answer

Capital Fund Management already held CIEN in its Q4 2018 13F, the earliest on record, and has listed it in 21 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	51,538	+194.7%	$25.3M	0.1%	$490.56	55
2026-Q1	Decreased	17,486	-83.5%	$6.8M	0.0%	$388.23	0
2025-Q4	Decreased	105,918	-52.4%	$24.8M	0.1%	$233.87	0
2025-Q3	Decreased	222,544	-13.8%	$32.4M	0.1%	$145.67	0
2025-Q2	Decreased	258,250	-27.8%	$21M	0.1%	$81.33	0
2025-Q1	Increased	357,568	+117.0%	$21.6M	0.1%	$60.43	46
2024-Q4	Increased	164,737	+37.4%	$14M	0.0%	$84.81	37
2024-Q3	Increased	119,893	+4.6%	$7.4M	0.0%	$61.59	29