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
Q2 		$2.94M Buy
5,995
+1,422
+31% +$725K 0.06% 437
2026
Q1 		$1.78M Sell
4,573
-56,612
-93% -$17.3M 0.04% 523
2025
Q4 		$14.3M Sell
61,185
-70,321
-53% -$13.6M 0.12% 196
2025
Q3 		$19.2M Buy
131,506
+34,466
+36% +$3.51M 0.08% 296
2025
Q2 		$7.89M Buy
97,040
+49,841
+106% +$3.58M 0.01% 860
2025
Q1 		$2.85M Buy
47,199
+27,597
+141% +$2.18M 0.01% 1063
2024
Q4 		$1.66M Buy
19,602
+15,655
+397% +$1.12M ﹤0.01% 1189
2024
Q3 		$243K Sell
3,947
-13,723
-78% -$723K ﹤0.01% 1347
2024
Q2 		$851K Sell
17,670
-1,817
-9% -$86.2K ﹤0.01% 1074
2024
Q1 		$964K Sell
19,487
-17,105
-47% -$902K ﹤0.01% 1066
2023
Q4 		$1.65M Buy
36,592
+12,378
+51% +$546K ﹤0.01% 1085
2023
Q3 		$1.14M Buy
+24,214
New +$1.07M ﹤0.01% 957
2023
Q2 		– Sell
-322,475
Closed -$14.7M – 1273
2023
Q1 		$16.9M Buy
322,475
+86,503
+37% +$4.32M 0.03% 437
2022
Q4 		$12M Buy
+235,972
New +$10.7M 0.03% 528
2022
Q3 		– Sell
-46,718
Closed -$2.13M – 1361
2022
Q2 		$2.13M Sell
46,718
-1,587
-3% -$82.3K ﹤0.01% 1073
2022
Q1 		$2.93M Buy
48,305
+47,078
+3,837% +$3.08M ﹤0.01% 1079
2021
Q4 		$94K Buy
+1,227
New +$75.7K ﹤0.01% 1464
2021
Q2 		– Sell
-82,382
Closed -$4.54M – 1368
2021
Q1 		$4.51M Sell
82,382
-6,843
-8% -$368K 0.02% 667
2020
Q4 		$4.72M Buy
+89,225
New +$3.96M 0.02% 644
2020
Q2 		– Sell
-131,958
Closed -$6.56M – 1483
2020
Q1 		$5.25M Buy
131,958
+64,881
+97% +$2.66M 0.03% 473
2019
Q4 		$2.86M Sell
67,077
-50,955
-43% -$1.94M 0.01% 636
2019
Q3 		$4.63M Buy
118,032
+3,629
+3% +$152K 0.02% 499
2019
Q2 		$4.71M Buy
114,403
+113,917
+23,440% +$4.38M 0.02% 470
2019
Q1 		$18K Buy
+486
New +$18.9K ﹤0.01% 1154

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Twin Tree Management's CIEN Position: Q2 2026 in Review

Twin Tree Management increased its Ciena (CIEN) stake by 31% in Q2 2026, buying an estimated $725K and bringing the position to 5,995 shares worth $2.94M. The position accounts for 0.06% of the portfolio, ranked #437.

Twin Tree Management first reported a position in CIEN in Q1 2019 and has held it in 24 quarters since. The position peaked at $19.2M in Q3 2025. 1,219 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Twin Tree Management held 5,995 shares of Ciena worth $2.94M as of Q2 2026.
  • Twin Tree Management bought 1,422 Ciena shares in Q2 2026, an estimated $725K.
  • Ciena made up 0.06% of Twin Tree Management's portfolio in Q2 2026, its #437 holding.
  • Twin Tree Management first reported a position in Ciena in Q1 2019 and has held it in 24 quarters since.
  • Twin Tree Management's Ciena position peaked at $19.2M in Q3 2025.
  • 1,219 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.