Rossby Financial
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Rossby Financial’s Ciena CIEN Stock Holding History

Rossby Financial’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
Q3 		$23.6K Sell
67
-19
-22% -$7.33K ﹤0.01% 1194
2026
Q2 		$42.2K Sell
86
-13
-13% -$6.63K 0.01% 740
2026
Q1 		$41.1K Buy
99
+59
+148% +$18K 0.01% 797
2025
Q4 		$9.36K Buy
+40
New +$7.76K ﹤0.01% 955

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $106B AUM 32.76% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $109B AUM 51.53% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $67.3B AUM 21.9% 1-Year Est. Return

Rossby Financial's CIEN Position: Q3 2026 in Review

Rossby Financial reduced its Ciena (CIEN) stake by 22% in Q3 2026, selling an estimated $7.33K and leaving 67 shares worth $23.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1194.

Rossby Financial first reported a position in CIEN in Q4 2025 and has held it in 4 quarters since. The position peaked at $42.2K in Q2 2026. 653 funds tracked by Wall St. Rank hold CIEN as of Q3 2026.

  • Rossby Financial held 67 shares of Ciena worth $23.6K as of Q3 2026.
  • Rossby Financial sold 19 Ciena shares in Q3 2026, an estimated $7.33K.
  • Ciena made up ﹤0.01% of Rossby Financial's portfolio in Q3 2026, its #1194 holding.
  • Rossby Financial first reported a position in Ciena in Q4 2025 and has held it in 4 quarters since.
  • Rossby Financial's Ciena position peaked at $42.2K in Q2 2026.
  • 653 funds tracked by Wall St. Rank held Ciena as of Q3 2026.

Based on Rossby Financial's 13F filing for Q3 2026, filed 5 Nov 2026.