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Ray Dalio's Ciena Corporation (CIEN) position

Yes: as of Q1 2026, Ray Dalio holds 144K shares of CIEN worth $53M (0.2% of the disclosed portfolio). Last quarter the position was reduced by 32.4%. First disclosed Q2 2021.
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Current value
$53M
Shares held
144K
% of portfolio
0.2%
Est. average buy price (i)
$117.12
Quarter-end price
$367.84

Estimated trade prices

Average price in quarters with purchases
$115.07
Average prices in quarters with sales
  • Q1 2026: $304.86 (69K shares sold)

CIEN price vs Dalio's position

1Y 3Y 5Y MAX
Dates
$20$500$1,00020192020202120222023202420252026New position of 7K shares · Q2 2021. Average closing price $55.12 · Price range $49.52–$60.777KsharespurchasedNew position of 48K shares · Q2 2025. Average closing price $71.73 · Price range $53.50–$83.8948KsharespurchasedAdded 114K shares (237.2%) · Q3 2025. Average closing price $101.84 · Price range $77.75–$145.67114KsharespurchasedAdded 51K shares (31.5%) · Q4 2025. Average closing price $194.00 · Price range $151.45–$242.2551KsharespurchasedSold 69K shares (32.4%) · Q1 2026. Average closing price $304.86 · Price range $225.21–$437.7069Ksharessold
Average closing price · filing quarter
$304.86
Price range · filing quarter
$225.21 – $437.70
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −69K −$21M −32.4% 144K May 15, 2026
Q4 2025 Added +51K +$9.9M +31.5% 213K Feb 13, 2026
Q3 2025 Added +114K +$12M +237.2% 162K Nov 13, 2025
Q2 2025 New +48K +$3.4M – 48K Aug 13, 2025
Q2 2021 New +7K +$401K – 7K Aug 13, 2021
Data through Q1 2026 · filed May 15, 2026
5 grouped rows from 5 quarters

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Common questions

Does Ray Dalio own CIEN?

Yes. As of Q1 2026, Ray Dalio disclosed 144K shares of CIEN, worth $53M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ray Dalio buy CIEN?

Ray Dalio first disclosed a CIEN position in Q2 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ray Dalio sell CIEN?

The quarter-by-quarter table above shows each sale and reduction Ray Dalio disclosed in CIEN. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of CIEN does Ray Dalio own?

Ray Dalio disclosed 144K shares of CIEN as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ray Dalio pay for CIEN?

Ray Dalio's estimated average buy price for CIEN is $117.12, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.