Twin Tree Management
CIEN icon

Twin Tree Management’s Ciena CIEN Stock Holding History

Twin Tree Management’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
2026
Q1 		$2.21M Sell
5,700
-68,300
-92% -$20.9M 0.05% 441
2025
Q4 		$17.3M Sell
74,000
-51,100
-41% -$9.91M 0.15% 159
2025
Q3 		$18.2M Sell
125,100
-74,800
-37% -$7.62M 0.08% 315
2025
Q2 		$16.3M Buy
199,900
+15,000
+8% +$1.08M 0.03% 564
2025
Q1 		$11.2M Sell
184,900
-85,400
-32% -$6.75M 0.02% 627
2024
Q4 		$22.9M Buy
270,300
+57,700
+27% +$4.14M 0.04% 414
2024
Q3 		$13.1M Buy
212,600
+161,800
+319% +$8.53M 0.03% 557
2024
Q2 		$2.45M Sell
50,800
-73,600
-59% -$3.49M 0.01% 925
2024
Q1 		$6.15M Buy
124,400
+68,200
+121% +$3.6M 0.01% 767
2023
Q4 		$2.53M Buy
56,200
+27,600
+97% +$1.22M ﹤0.01% 1018
2023
Q3 		$1.35M Buy
+28,600
New +$1.26M ﹤0.01% 928
2022
Q2 		– Sell
-69,900
Closed -$4.24M – 1529
2022
Q1 		$4.24M Buy
+69,900
New +$4.57M 0.01% 978
2021
Q3 		– Sell
-226,600
Closed -$12.9M – 1586
2021
Q2 		$12.9M Buy
226,600
+110,800
+96% +$6.11M 0.03% 447
2021
Q1 		$6.34M Buy
115,800
+105,500
+1,024% +$5.68M 0.02% 586
2020
Q4 		$544K Buy
+10,300
New +$458K ﹤0.01% 1034
2020
Q3 		– Sell
-382,300
Closed -$20.7M – 1256
2020
Q2 		$20.7M Sell
382,300
-15,000
-4% -$746K 0.08% 267
2020
Q1 		$15.8M Buy
397,300
+225,000
+131% +$9.23M 0.08% 224
2019
Q4 		$7.36M Buy
172,300
+67,700
+65% +$2.58M 0.03% 419
2019
Q3 		$4.1M Buy
+104,600
New +$4.39M 0.02% 524

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

Twin Tree Management's CIEN Position: Q1 2026 in Review

Twin Tree Management reduced its Ciena (CIEN) stake by 93% in Q1 2026, selling an estimated $17.3M and leaving 4,573 shares worth $1.78M. The position accounts for 0.04% of the portfolio, ranked #523.

Twin Tree Management first reported a position in CIEN in Q1 2019 and has held it in 23 quarters since. The position peaked at $19.2M in Q3 2025. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

  • Twin Tree Management held 4,573 shares of Ciena worth $1.78M as of Q1 2026.
  • Twin Tree Management sold 56,612 Ciena shares in Q1 2026, an estimated $17.3M.
  • Ciena made up 0.04% of Twin Tree Management's portfolio in Q1 2026, its #523 holding.
  • Twin Tree Management first reported a position in Ciena in Q1 2019 and has held it in 23 quarters since.
  • Twin Tree Management's Ciena position peaked at $19.2M in Q3 2025.
  • 1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Twin Tree Management's 13F filing for Q1 2026, filed 14 May 2026.