Parallax Volatility Advisers
CIEN icon

Parallax Volatility Advisers’s Ciena CIEN Stock Holding History

Parallax Volatility Advisers’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 		– Sell
-1,187
Closed -$605K – 1546
2026
Q1 		$461K Buy
+1,187
New +$363K ﹤0.01% 1073
2020
Q4 		– Sell
-41,637
Closed -$1.65M – 2607
2020
Q3 		$1.65M Buy
41,637
+41,041
+6,886% +$2.16M ﹤0.01% 1778
2020
Q2 		$32K Sell
596
-20,407
-97% -$1.01M ﹤0.01% 2543
2020
Q1 		$836K Buy
21,003
+15,017
+251% +$616K ﹤0.01% 1545
2019
Q4 		$256K Sell
5,986
-19,450
-76% -$741K ﹤0.01% 1945
2019
Q3 		$998K Buy
25,436
+21,037
+478% +$882K ﹤0.01% 1376
2019
Q2 		$181K Sell
4,399
-2,911
-40% -$112K ﹤0.01% 1750
2019
Q1 		$273K Buy
7,310
+4,954
+210% +$192K ﹤0.01% 1767
2018
Q4 		$80K Buy
+2,356
New +$74.7K ﹤0.01% 1997
2018
Q2 		– Sell
-5,789
Closed -$150K – 2197
2018
Q1 		$150K Sell
5,789
-54,430
-90% -$1.28M ﹤0.01% 1300
2017
Q4 		$1.26M Buy
60,219
+37,581
+166% +$797K ﹤0.01% 1099
2017
Q3 		$497K Sell
22,638
-112,841
-83% -$2.7M ﹤0.01% 1256
2017
Q2 		$3.39M Buy
+135,479
New +$3.25M 0.01% 682
2016
Q4 		– Sell
-38,333
Closed -$837K – 3116
2016
Q3 		$836K Sell
38,333
-26,935
-41% -$562K ﹤0.01% 1315
2016
Q2 		$1.22M Buy
65,268
+30,646
+89% +$555K ﹤0.01% 1115
2016
Q1 		$659K Sell
34,622
-36,986
-52% -$683K ﹤0.01% 1346
2015
Q4 		$1.48M Buy
71,608
+69,166
+2,832% +$1.59M ﹤0.01% 1117
2015
Q3 		$51K Sell
2,442
-45,644
-95% -$1.06M ﹤0.01% 2171
2015
Q2 		$1.14M Buy
48,086
+41,308
+609% +$943K ﹤0.01% 1294
2015
Q1 		$131K Buy
6,778
+3,809
+128% +$75.9K ﹤0.01% 2338
2014
Q4 		$58K Buy
+2,969
New +$49.6K ﹤0.01% 3859
2014
Q2 		– Sell
-2,843
Closed -$58.4K – 4064
2014
Q1 		$65K Buy
+2,843
New +$66.9K ﹤0.01% 2133
2013
Q4 		– Sell
-544
Closed -$13K – 3356
2013
Q3 		$14K Buy
+544
New +$12.3K ﹤0.01% 2446

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

Parallax Volatility Advisers's CIEN Position: Q2 2026 in Review

Parallax Volatility Advisers sold out of Ciena (CIEN) in Q2 2026, closing a stake of 1,187 shares — an estimated $605K sold.

Parallax Volatility Advisers first reported a position in CIEN in Q3 2013 and held it in 23 quarters. The position peaked at $3.39M in Q2 2017. 1,217 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Parallax Volatility Advisers reported no remaining Ciena position as of Q2 2026 after selling out during the quarter.
  • Parallax Volatility Advisers sold 1,187 Ciena shares in Q2 2026, an estimated $605K.
  • Parallax Volatility Advisers first reported a position in Ciena in Q3 2013 and held it in 23 quarters.
  • Parallax Volatility Advisers's Ciena position peaked at $3.39M in Q2 2017.
  • 1,217 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Parallax Volatility Advisers's 13F filing for Q2 2026, filed 14 Aug 2026.