Quantbot Technologies’s Ciena CIEN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.6M | Sell |
3,268
-4,108
| -56% | -$2.09M | 0.06% | 442 |
|
|
2026
Q1 | $2.86M | Buy |
+7,376
| New | +$2.26M | 0.12% | 254 |
|
|
2025
Q4 | – | Sell |
-4,406
| Closed | -$642K | – | 1761 |
|
|
2025
Q3 | $642K | Buy |
+4,406
| New | +$449K | 0.02% | 928 |
|
|
2023
Q2 | – | Sell |
-12,111
| Closed | -$636K | – | 1616 |
|
|
2023
Q1 | $636K | Sell |
12,111
-35,260
| -74% | -$1.76M | 0.05% | 540 |
|
|
2022
Q4 | $2.41M | Buy |
+47,371
| New | +$2.14M | 0.17% | 175 |
|
|
2022
Q1 | – | Sell |
-762
| Closed | -$58K | – | 1681 |
|
|
2021
Q4 | $58K | Buy |
+762
| New | +$47K | ﹤0.01% | 993 |
|
|
2020
Q1 | – | Sell |
-25,040
| Closed | -$1.07M | – | 975 |
|
|
2019
Q4 | $1.07M | Buy |
25,040
+4,365
| +21% | +$166K | 0.11% | 237 |
|
|
2019
Q3 | $811K | Sell |
20,675
-62,641
| -75% | -$2.63M | 0.08% | 321 |
|
|
2019
Q2 | $3.43M | Buy |
83,316
+78,388
| +1,591% | +$3.02M | 0.34% | 78 |
|
|
2019
Q1 | $184K | Buy |
+4,928
| New | +$191K | 0.02% | 668 |
|
|
2018
Q4 | – | Sell |
-2,468
| Closed | -$77K | – | 1065 |
|
|
2018
Q3 | $77K | Buy |
+2,468
| New | +$69.2K | 0.01% | 942 |
|
|
2016
Q3 | – | Sell |
-31,932
| Closed | -$598K | – | 1107 |
|
|
2016
Q2 | $598K | Buy |
31,932
+18,126
| +131% | +$328K | 0.06% | 326 |
|
|
2016
Q1 | $262K | Buy |
+13,806
| New | +$255K | 0.04% | 461 |
|
|
2015
Q4 | – | Sell |
-12,567
| Closed | -$260K | – | 1107 |
|
|
2015
Q3 | $260K | Sell |
12,567
-2,779
| -18% | -$64.6K | 0.05% | 447 |
|
|
2015
Q2 | $363K | Buy |
15,346
+13,470
| +718% | +$308K | 0.07% | 275 |
|
|
2015
Q1 | $36K | Sell |
1,876
-14,235
| -88% | -$284K | 0.01% | 837 |
|
|
2014
Q4 | $312K | Sell |
16,111
-22,959
| -59% | -$383K | 0.1% | 305 |
|
|
2014
Q3 | $653K | Buy |
39,070
+26,921
| +222% | +$528K | 0.09% | 339 |
|
|
2014
Q2 | $263K | Buy |
+12,149
| New | +$250K | 0.04% | 486 |
|
|
2014
Q1 | – | Sell |
-5,633
| Closed | -$134K | – | 1133 |
|
|
2013
Q4 | $134K | Buy |
+5,633
| New | +$134K | 0.07% | 352 |
|
|
2013
Q3 | – | Sell |
-12,100
| Closed | -$234K | – | 782 |
|
|
2013
Q2 | $234K | Buy |
+12,100
| New | +$201K | 0.12% | 214 |
|
Other funds holding CIEN
Quantbot Technologies's CIEN Position: Q2 2026 in Review
Quantbot Technologies reduced its Ciena (CIEN) stake by 56% in Q2 2026, selling an estimated $2.09M and leaving 3,268 shares worth $1.6M. The position accounts for 0.06% of the portfolio, ranked #442.
Quantbot Technologies first reported a position in CIEN in Q2 2013 and has held it in 21 quarters since. The position peaked at $3.43M in Q2 2019. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.
- Quantbot Technologies held 3,268 shares of Ciena worth $1.6M as of Q2 2026.
- Quantbot Technologies sold 4,108 Ciena shares in Q2 2026, an estimated $2.09M.
- Ciena made up 0.06% of Quantbot Technologies's portfolio in Q2 2026, its #442 holding.
- Quantbot Technologies first reported a position in Ciena in Q2 2013 and has held it in 21 quarters since.
- Quantbot Technologies's Ciena position peaked at $3.43M in Q2 2019.
- 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.
Based on Quantbot Technologies's 13F filing for Q2 2026, filed 12 Aug 2026.