CIEN
Ciena CorpCompany with tickers: CIEN
Market Cap
$65.61B
Shares Outstanding
141,552,922
CIK
936395
CUSIP
171779309
13F Activity (30d)
13 filings
10 filers
Website
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Investor Relations
Investor relations
Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this stock, matched by the stock's CUSIP. Each row is one fund position with its size, value and weight in that fund.
Funds holding CIEN
711 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| Fidelity Growth Company Fund | — | 6,827,273 | $2,380,670,095 | 2.89% | Long | 2026-02-28 | |
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 4,489,155 | $1,742,824,646 | 0.09% | Long | 2026-03-31 | |
| VANGUARD 500 INDEX FUND | — | 3,578,900 | $1,389,436,347 | 0.10% | Long | 2026-03-31 | |
| JPMorgan Large Cap Growth Fund | — | 3,327,347 | $1,291,775,926 | 1.20% | Long | 2026-03-31 | |
| iShares Core S&P 500 ETF | — | 1,811,397 | $703,238,657 | 0.10% | Long | 2026-03-31 | |
| Fidelity Growth Company K6 Fund | — | 1,943,031 | $677,534,910 | 2.92% | Long | 2026-02-28 | |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | SPY | 1,637,980 | $635,912,975 | 0.10% | Long | 2026-03-31 | |
| VANGUARD SMALL-CAP INDEX FUND | — | 1,630,946 | $633,182,166 | 0.38% | Long | 2026-03-31 | |
| Fidelity 500 Index Fund | — | 1,795,116 | $625,956,949 | 0.08% | Long | 2026-02-28 | |
| Fidelity Series Growth Company Fund | — | 1,762,539 | $614,597,349 | 2.91% | Long | 2026-02-28 | |
| New Economy Fund | — | 1,740,050 | $606,755,435 | 1.35% | Long | 2026-02-28 | |
| VANGUARD MID-CAP INDEX FUND | — | 1,527,546 | $593,039,184 | 0.30% | Long | 2026-03-31 | |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND | — | 1,450,022 | $505,622,671 | 0.39% | Long | 2026-02-28 | |
| State Street(R) Technology Select Sector SPDR(R) ETF | — | 1,056,287 | $410,082,302 | 0.49% | Long | 2026-03-31 | |
| VANGUARD GROWTH INDEX FUND | — | 931,019 | $361,449,506 | 0.11% | Long | 2026-03-31 | |
| VANGUARD SMALL-CAP GROWTH INDEX FUND | — | 912,598 | $354,297,922 | 0.92% | Long | 2026-03-31 | |
| AMCAP Fund | — | 942,194 | $328,543,048 | 0.35% | Long | 2026-02-28 | |
| Capital World Growth & Income Fund | — | 892,142 | $311,089,915 | 0.21% | Long | 2026-02-28 | |
| VANGUARD INSTITUTIONAL INDEX FUND | — | 794,202 | $308,333,042 | 0.10% | Long | 2026-03-31 | |
| iShares Large Cap Core Active ETF | — | 421,181 | $222,206,672 | 4.32% | Long | 2026-04-30 | |
| iShares Russell Mid-Cap ETF | — | 538,914 | $209,222,582 | 0.43% | Long | 2026-03-31 | |
| VANGUARD MID-CAP GROWTH INDEX FUND | — | 537,991 | $208,864,246 | 0.71% | Long | 2026-03-31 | |
| JPMorgan Growth Advantage Fund | — | 524,541 | $203,642,552 | 1.01% | Long | 2026-03-31 | |
| T. Rowe Price Large-Cap Growth Fund | — | 426,765 | $165,682,976 | 0.88% | Long | 2026-03-31 | |
| Schwab S&P 500 Index Fund | — | 311,858 | $164,530,044 | 0.12% | Long | 2026-04-30 | |
| iShares MSCI USA Momentum Factor ETF | — | 299,102 | $157,800,233 | 0.65% | Long | 2026-04-30 | |
| Growth Fund of America | — | 433,141 | $151,036,267 | 0.05% | Long | 2026-02-28 | |
| U.S. CORE EQUITY 1 PORTFOLIO | — | 266,377 | $140,535,178 | 0.35% | Long | 2026-04-30 | |
| Schwab U.S. Mid-Cap ETF | — | 381,156 | $132,909,097 | 0.97% | Long | 2026-02-28 | |
| First Trust Dow Jones Internet Index Fund | — | 337,469 | $131,015,590 | 2.89% | Long | 2026-03-31 | |
| iShares Russell 1000 Value ETF | — | 323,924 | $125,757,015 | 0.18% | Long | 2026-03-31 | |
| MFS Mid Cap Growth Fund | — | 352,236 | $122,824,693 | 0.89% | Long | 2026-02-28 | |
| JPMorgan Mid Cap Growth Fund | — | 300,152 | $116,528,011 | 1.02% | Long | 2026-03-31 | |
| State Street(R) SPDR(R) Portfolio S&P 500(R) ETF | — | 296,423 | $115,080,301 | 0.10% | Long | 2026-03-31 | |
| iShares S&P 500 Growth ETF | — | 296,012 | $114,920,739 | 0.19% | Long | 2026-03-31 | |
| U.S. CORE EQUITY 2 PORTFOLIO | — | 217,264 | $114,624,141 | 0.30% | Long | 2026-04-30 | |
| T. Rowe Price Science & Technology Fund, Inc. | — | 290,165 | $112,650,758 | 1.05% | Long | 2026-03-31 | |
| Strategic Advisers U.S. Total Stock Fund | — | 280,300 | $97,740,610 | 0.11% | Long | 2026-02-28 | |
| T. Rowe Price Communications & Technology Fund | — | 243,986 | $94,722,685 | 1.17% | Long | 2026-03-31 | |
| VANGUARD CAPITAL OPPORTUNITY FUND | — | 239,500 | $92,981,085 | 0.38% | Long | 2026-03-31 | |
| Fidelity Total Market Index Fund | — | 263,696 | $91,950,795 | 0.07% | Long | 2026-02-28 | |
| JPMorgan Active Growth ETF | — | 233,141 | $90,512,330 | 1.11% | Long | 2026-03-31 | |
| JPMorgan U.S. Tech Leaders ETF | — | 232,423 | $90,233,581 | 2.93% | Long | 2026-03-31 | |
| College Retirement Equities Fund - Total Global Stock Account | — | 211,682 | $82,181,303 | 0.06% | Long | 2026-03-31 | |
| Fidelity MSCI Information Technology Index ETF | — | 152,585 | $80,500,794 | 0.45% | Long | 2026-04-30 | |
| iShares Russell Mid-Cap Value ETF | — | 203,103 | $78,850,678 | 0.56% | Long | 2026-03-31 | |
| State Street(R) SPDR(R) Portfolio S&P 500(R) Growth ETF | — | 202,317 | $78,545,529 | 0.19% | Long | 2026-03-31 | |
| T. Rowe Price Global Technology Fund, Inc. | — | 194,186 | $75,388,831 | 1.33% | Long | 2026-03-31 | |
| iShares MSCI USA Min Vol Factor ETF | — | 142,018 | $74,925,856 | 0.33% | Long | 2026-04-30 | |
| T. Rowe Price Global Stock Fund | — | 141,016 | $74,397,221 | 0.91% | Long | 2026-04-30 |
Showing 1–50 of 711 positions