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VTI▼ −0.2%VOO▼ −0.4%IVV▼ −0.3%SPY▼ −0.4%VXUS▼ −0.1%QQQ▼ −1.4%VUG▼ −1.3%BND▲ +0.3%VEA▲ +0.2%VTV▲ +0.9%VO▲ +0.8%IEFA▲ +0.6%SPYM▼ −0.3%VGT▼ −1.1%VB▲ +1.3%VWO▼ −0.7%IEMG▼ −1.3%AGG▲ +0.3%GLD▼ −1.3%VIG▲ +1.3%XLK▼ −1.2%IJH▲ +1.2%IWF▼ −1.5%BNDX▲ +0.1%SCHD▲ +1.5%SGOV▲ +0.0%QQQM▼ −1.4%IJR▲ +1.6%RSP▲ +1.2%VT▼ −0.2%

VTI▼ −0.2%VOO▼ −0.4%IVV▼ −0.3%SPY▼ −0.4%VXUS▼ −0.1%QQQ▼ −1.4%VUG▼ −1.3%BND▲ +0.3%VEA▲ +0.2%VTV▲ +0.9%VO▲ +0.8%IEFA▲ +0.6%SPYM▼ −0.3%VGT▼ −1.1%VB▲ +1.3%VWO▼ −0.7%IEMG▼ −1.3%AGG▲ +0.3%GLD▼ −1.3%VIG▲ +1.3%XLK▼ −1.2%IJH▲ +1.2%IWF▼ −1.5%BNDX▲ +0.1%SCHD▲ +1.5%SGOV▲ +0.0%QQQM▼ −1.4%IJR▲ +1.6%RSP▲ +1.2%VT▼ −0.2%

The ETF Trackerby

Markets Portfolio Issuers Visualizations Compare

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Markets / Stocks / CIEN

CIEN

Ciena Corporation

Stock · Technology · Communication Equipment · US · $47.2B market cap

Compare its ETFs Find in Markets

Held by ETFs$137M

Share of the company≈0.3%

Top-10 holding in14 ETFs

Built on CIEN alone2 ETFs

Most per dollar · basket—

Biggest holderIYZ $31M

Every ETF built around CIEN

Closest to the stock first, then outward.

Map · size = assets, color = YTD

FundNameWhat it gives youCIEN per $1,000YTDYieldFeeAssets

1Double it2x CIEN’s move each day2 funds · $16M

CIEGThemes ETF Trust - Leverage Shares 2X Long CIEN Daily ETF2xdaily$2,000—0.0%0.75%$14M CIEXInvestment Managers Series Trust II - Tradr 2X Long CIEN Daily ETF2xdaily$2,000—0.0%1.49%$2M

4Heaviest basketsCIEN is the biggest slice; over $1B first14 funds hold it in their top 10

IDGT+33.7%TCAI+39.2%SPRX+4.6%LYTE—FOTO—

LYTERoundhill Photonics & Optics ETF10.4%CIEN$104—0.0%0.65%$157M SPRXSpear Alpha ETF5.4%CIEN$54+4.6%0.0%0.75%$198M MTAWMeta AI Lab Ecosystem ETF5.0%CIEN$50—0.0%0.59%$1M FOTOTuttle Capital Pure Play Photonics ETF4.7%CIEN$47—0.0%0.75%$107M IDGTiShares U.S. Digital Infrastructure and Real Estate ETF4.3%CIEN$43+33.7%0.8%0.37%$503M TCAITortoise AI Infrastructure ETF3.8%CIEN$38+39.2%0.0%0.65%$212M

5Themes around itThe themes and supply chain it sits in1 fund · $9M of CIEN

EUVCorgi Lithography & Semiconductor Photonics ETF3.3%CIEN$33—0.0%0.35%$284M

ETF Tracker · Talking about all things ETFsNot investment advice.

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Where the ETF money in CIEN sits

Sectors $47MThematic $39MOther $35MUS Stock Styles $14MInternational $1MIncome $0M

IYZ$31M · 3.5%XTL$16M · 3.3%IDGT$22M · 4.3%EUV$9M · 3.3%TCAI$8M · 3.8%LYTE$16M · 10.4%SPRX$11M · 5.4%FOTO$5M · 4.7%OPTZ$3M · 1.2%NUMG$11M · 3.2%EQAL$4M · 0.5%SAGPJIII

The ETF Tracker@TheETFTracker

Tile size = dollars of CIEN held · $137M across funds that list it in their top 10

The ETF TrackerWhere the ETF money in CIEN sits@TheETFTracker · etftracker.io · Nov 1, 2026