Question 1

How many shares of CIEN does CAPITAL FUND MANAGEMENT S.A. own?

Accepted Answer

As of 2026-Q1, CAPITAL FUND MANAGEMENT S.A. holds 17,486 shares of CIEN (CIENA CORP).

Question 2

What is CAPITAL FUND MANAGEMENT S.A.'s CIEN position worth?

Accepted Answer

As of 2026-Q1, CAPITAL FUND MANAGEMENT S.A.'s CIEN position is worth $6.8M.

Question 3

Is CAPITAL FUND MANAGEMENT S.A. buying or selling CIEN?

Accepted Answer

In 2026-Q1, CAPITAL FUND MANAGEMENT S.A. decreased their CIEN position (-83.5% change in shares).

Question 4

When did CAPITAL FUND MANAGEMENT S.A. first buy CIEN?

Accepted Answer

Based on available 13F filings, CAPITAL FUND MANAGEMENT S.A. first reported a position in CIEN in 2024-Q2. They have held the position across 13 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Decreased	17,486	-83.5%	$6.8M	0.0%	$333.07	0
2025-Q4	Decreased	105,918	-52.4%	$24.8M	0.1%	$238.36	0
2025-Q3	Decreased	222,544	-13.8%	$32.4M	0.1%	$144.12	0
2025-Q2	Decreased	258,250	-27.8%	$21M	0.1%	$82.12	0
2025-Q1	Increased	357,568	+117.0%	$21.6M	0.1%	$61.56	46
2024-Q4	Increased	164,737	+37.4%	$14M	0.0%	$85.01	37
2024-Q3	Increased	119,893	+4.6%	$7.4M	0.0%	$61.81	29
2024-Q2	Decreased	114,592	-13.1%	$5.5M	0.0%	$48.18	0