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Mizuho Securities USA’s Ciena CIEN Stock Holding History

Mizuho Securities USA’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 		$5.43M Buy
11,070
+2,555
+30% +$1.3M 0.09% 219
2026
Q1 		$3.31M Buy
+8,515
New +$2.6M 0.08% 279

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

Mizuho Securities USA's CIEN Position: Q2 2026 in Review

Mizuho Securities USA increased its Ciena (CIEN) stake by 30% in Q2 2026, buying an estimated $1.3M and bringing the position to 11,070 shares worth $5.43M. The position accounts for 0.09% of the portfolio, ranked #219.

Mizuho Securities USA first reported a position in CIEN in Q1 2026 and has held it in 2 quarters since. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Mizuho Securities USA held 11,070 shares of Ciena worth $5.43M as of Q2 2026.
  • Mizuho Securities USA bought 2,555 Ciena shares in Q2 2026, an estimated $1.3M.
  • Ciena made up 0.09% of Mizuho Securities USA's portfolio in Q2 2026, its #219 holding.
  • Mizuho Securities USA first reported a position in Ciena in Q1 2026 and has held it in 2 quarters since.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Mizuho Securities USA's 13F filing for Q2 2026, filed 24 Jul 2026.