Ciena Corporation
US ˙ NYSE ˙ US1717793095

SecurityCIEN / Ciena Corporation
InstitutionElkfork Partners LLC
Latest Disclosed Ownership28,840 shares
Latest Disclosed Value $ 1,131,000
Elkfork Partners LLC reports 2.49% increase in ownership of CIEN / Ciena Corporation

On November 14, 2019 - Elkfork Partners LLC filed a 13F-HR form disclosing ownership of 28,840 shares of Ciena Corporation (US:CIEN) valued at $1,131,393 USD as of September 30, 2019. The entity filed a previous 13F-HR on August 13, 2019 disclosing 28,140 shares of Ciena Corporation. This represents a change in shares of 2.49% during the quarter. The current value of the position is $14,079,976 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2019-11-14 2019-09-30 13F Ciena COM 171779309 28,840 700 2.49 1,131 -2.25 0.0275
2019-08-13 2019-06-30 13F Ciena COM 171779309 28,140 28 0.10 1,157 10.19 0.0283
2019-05-13 2019-03-31 13F Ciena COM 171779309 28,112 3,668 15.01 1,050 26.66 0.0263
2019-02-13 2018-12-31 13F Ciena COM 171779309 24,444 1,512 6.59 829 15.78 0.0234
2018-11-14 2018-09-30 13F Ciena COM 171779309 22,932 5,908 34.70 716 58.76 0.0170
2018-08-13 2018-06-30 13F Ciena COM 171779309 17,024 0 0.00 451 2.27 0.0116
2018-05-10 2018-03-31 13F Ciena COM 171779309 17,024 0 0.00 441 23.88 0.0119
2018-02-24 2017-12-31 13F/A-1 Ciena COM 171779309 17,024 3,808 28.81 356 22.76 0.0097
2017-11-14 2017-09-30 13F Ciena COM 171779309 13,216 1,708 14.84 290 0.69 0.0084
2017-08-14 2017-06-30 13F Ciena COM 171779309 11,508 4,788 71.25 288 81.13 0.0087
2017-05-03 2017-03-31 13F Ciena COM 171779309 6,720 728 12.15 159 8.90 0.0049
2017-02-10 2016-12-31 13F Ciena COM 171779309 5,992 5,992 146 0.0048
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.