Ciena
CIEN
1,083 hedge funds and large institutions have $51.8B invested in Ciena in 2026 Q1 according to their latest regulatory filings, with 320 funds opening new positions, 318 increasing their positions, 364 reducing their positions, and 80 closing their positions.
300% more first-time investments, than exits
New positions opened: 320 | Existing positions closed: 80
61% more capital invested
Capital invested by funds: $32.2B → $51.8B (+$19.7B)
39% more call options, than puts
Call options by funds: $1.11B | Put options by funds: $798M
35% more funds holding in top 10
Funds holding in top 10: 23 → 31 (+8)
27% more funds holding
Funds holding: 853 → 1,083 (+230)
2.59% less ownership
Funds ownership: 97.58% → 94.99% (-2.6%)
13% less repeat investments, than reductions
Existing positions increased: 318 | Existing positions reduced: 364
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital Research Global Investors
Los Angeles,
California
|
+$841M |
| 2 |
Geode Capital Management
Boston,
Massachusetts
|
+$422M |
| 3 |
State Street
Boston,
Massachusetts
|
+$369M |
| 4 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$364M |
| 5 |
LPC
Lone Pine Capital
Greenwich,
Connecticut
|
+$248M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$1.01B |
| 2 |
BNP Paribas Asset Management
Paris,
France
|
-$291M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$259M |
| 4 |
AM
Atreides Management
Boston,
Massachusetts
|
-$230M |
| 5 |
William Blair Investment Management
Chicago,
Illinois
|
-$214M |
CIEN Hedge Fund Activity: Q1 2026 in Review
1,083 of the 8,186 institutional investors tracked by Wall St. Rank reported a position in Ciena (CIEN) for Q1 2026, worth a combined $51.8B — up 61% from $32.2B a quarter earlier.
Buyers outnumbered sellers: 320 funds opened new CIEN positions and 80 closed out — a net gain of 240 holders — while 318 added to existing stakes and 364 trimmed.
The largest buyer was Capital Research Global Investors, opening a new position worth an estimated $841M. The largest seller was BlackRock, cutting an estimated $1.01B.
- 1,083 institutional investors held Ciena (CIEN) as of Q1 2026, up from 853 in Q4 2025.
- Funds reported $51.8B of Ciena stock for Q1 2026, up 61% quarter-over-quarter.
- 320 funds opened new Ciena positions in Q1 2026 and 80 closed out, a net change of +240 holders.
- The largest Ciena buyer in Q1 2026 was Capital Research Global Investors, an estimated $841M added.
- The largest Ciena seller in Q1 2026 was BlackRock, an estimated $1.01B sold.
Based on aggregated 13F filings for Q1 2026.