Capital World Investors
CIEN icon

Capital World Investors’s Ciena CIEN Stock Holding History

Capital World Investors’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 		$861M Buy
1,755,602
+30,795
+2% +$15.7M 0.1% 161
2026
Q1 		$670M Sell
1,724,807
-144,074
-8% -$44.1M 0.09% 181
2025
Q4 		$437M Buy
1,868,881
+31,900
+2% +$6.19M 0.06% 212
2025
Q3 		$268M Buy
1,836,981
+130,507
+8% +$13.3M 0.04% 253
2025
Q2 		$139M Sell
1,706,474
-146,535
-8% -$10.5M 0.02% 314
2025
Q1 		$112M Buy
+1,853,009
New +$146M 0.02% 323
2024
Q2 		– Sell
-1,181,591
Closed -$58.4M – 540
2024
Q1 		$58.4M Sell
1,181,591
-2,332,042
-66% -$123M 0.01% 385
2023
Q4 		$158M Buy
3,513,633
+791,215
+29% +$34.9M 0.03% 295
2023
Q3 		$129M Buy
2,722,418
+295
+0% +$13K 0.03% 310
2023
Q2 		$116M Hold
2,722,123
– – 0.02% 323
2023
Q1 		$143M Sell
2,722,123
-622,755
-19% -$31.1M 0.03% 307
2022
Q4 		$171M Sell
3,344,878
-455
-0% -$20.6K 0.04% 294
2022
Q3 		$135M Buy
3,345,333
+1,111,623
+50% +$53.4M 0.03% 307
2022
Q2 		$102M Buy
2,233,710
+443,115
+25% +$23M 0.02% 329
2022
Q1 		$109M Buy
+1,790,595
New +$117M 0.02% 350

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

Capital World Investors's CIEN Position: Q2 2026 in Review

Capital World Investors increased its Ciena (CIEN) stake by 1.8% in Q2 2026, buying an estimated $15.7M and bringing the position to 1,755,602 shares worth $861M. The position accounts for 0.1% of the portfolio, ranked #161.

Capital World Investors first reported a position in CIEN in Q1 2022 and has held it in 15 quarters since. 1,224 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Capital World Investors held 1,755,602 shares of Ciena worth $861M as of Q2 2026.
  • Capital World Investors bought 30,795 Ciena shares in Q2 2026, an estimated $15.7M.
  • Ciena made up 0.1% of Capital World Investors's portfolio in Q2 2026, its #161 holding.
  • Capital World Investors first reported a position in Ciena in Q1 2022 and has held it in 15 quarters since.
  • 1,224 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Capital World Investors's 13F filing for Q2 2026, filed 12 Aug 2026.