TSS
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Two Sigma Securities’s Ciena CIEN Stock Holding History

Two Sigma Securities’s Portfolio CIEN Stock Details CIEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q4 		– Sell
-6,700
Closed -$413K – 1890
2024
Q3 		$413K Sell
6,700
-1,200
-15% -$63.2K 0.01% 1478
2024
Q2 		$381K Sell
7,900
-11,200
-59% -$532K ﹤0.01% 1771
2024
Q1 		$944K Buy
19,100
+3,100
+19% +$164K 0.01% 1166
2023
Q4 		$720K Sell
16,000
-7,400
-32% -$326K 0.01% 1268
2023
Q3 		$1.11M Buy
23,400
+12,900
+123% +$569K 0.01% 974
2023
Q2 		$446K Sell
10,500
-40,900
-80% -$1.86M 0.01% 1516
2023
Q1 		$2.7M Buy
51,400
+44,700
+667% +$2.23M 0.05% 418
2022
Q4 		$342K Sell
6,700
-200
-3% -$9.04K 0.01% 1415
2022
Q3 		$279K Buy
+6,900
New +$332K 0.01% 1648
2020
Q2 		– Sell
-8,500
Closed -$338K – 1393
2020
Q1 		$338K Sell
8,500
-25,700
-75% -$1.05M 0.01% 789
2019
Q4 		$1.46M Buy
34,200
+9,000
+36% +$343K 0.01% 856
2019
Q3 		$989K Buy
25,200
+1,200
+5% +$50.3K 0.01% 874
2019
Q2 		$987K Buy
24,000
+16,100
+204% +$620K 0.01% 738
2019
Q1 		$295K Sell
7,900
-5,900
-43% -$229K ﹤0.01% 1203
2018
Q4 		$468K Sell
13,800
-71,800
-84% -$2.28M 0.01% 1028
2018
Q3 		$2.67M Sell
85,600
-53,300
-38% -$1.49M 0.02% 574
2018
Q2 		$3.68M Buy
138,900
+14,100
+11% +$358K 0.02% 613
2018
Q1 		$3.23M Buy
124,800
+103,200
+478% +$2.43M 0.02% 642
2017
Q4 		$452K Buy
+21,600
New +$458K 0.01% 759

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Two Sigma Securities's CIEN Position: Q1 2026 in Review

Two Sigma Securities reduced its Ciena (CIEN) stake by 57% in Q1 2026, selling an estimated $515K and leaving 1,262 shares worth $490K. The position accounts for 0.06% of the portfolio, ranked #481.

Two Sigma Securities first reported a position in CIEN in Q2 2019 and has held it in 12 quarters since. The position peaked at $1.32M in Q3 2023. 1,081 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

  • Two Sigma Securities held 1,262 shares of Ciena worth $490K as of Q1 2026.
  • Two Sigma Securities sold 1,684 Ciena shares in Q1 2026, an estimated $515K.
  • Ciena made up 0.06% of Two Sigma Securities's portfolio in Q1 2026, its #481 holding.
  • Two Sigma Securities first reported a position in Ciena in Q2 2019 and has held it in 12 quarters since.
  • Two Sigma Securities's Ciena position peaked at $1.32M in Q3 2023.
  • 1,081 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.