시스코 시스템즈, Inc.
MX ˙ BMV ˙ US17275R1023
SecurityMX:CSCO / Cisco Systems, Inc.
InstitutionDCF Advisers, LLC
Latest Disclosed Ownership55,000 shares
Latest Disclosed Value $ 4,267,450
DCF Advisers, LLC ownership in CSCO / Cisco Systems, Inc.

On May 11, 2026 - DCF Advisers, LLC filed a 13F-HR form disclosing ownership of 55,000 shares of Cisco Systems, Inc. (MX:CSCO) valued at $4,267,450 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 50,000 shares of Cisco Systems, Inc.. This represents a change in shares of 10.00% during the quarter.

DCF Advisers, LLC has a history of taking positions in derivatives of the underlying security (CSCO) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 15,000 of underlying shares valued at $1,163,850 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:CSCO / Cisco Systems, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F CISCO SYS COM 17275R102 55,000 5,000 10.00 4,267 10.80 1.1376
2026-02-11 2025-12-31 13F CISCO SYS COM 17275R102 50,000 -10,000 -16.67 3,852 -6.19 1.0331
2026-02-11 2025-12-31 13F CISCO SYS COM 17275R102 50,000 3,852
2026-02-11 2025-12-31 13F CISCO SYS COM 17275R102 50,000 3,852
2025-11-12 2025-09-30 13F CISCO SYS COM 17275R102 60,000 2,500 4.35 4,105 2.91 1.3191
2025-08-12 2025-06-30 13F CISCO SYS COM 17275R102 57,500 -7,500 -11.54 3,989 -0.55 1.8489
2025-05-09 2025-03-31 13F CISCO SYS COM 17275R102 65,000 35,000 116.67 4,011 125.84 1.9204
2025-02-11 2024-12-31 13F CISCO SYS COM 17275R102 30,000 0 0.00 1,776 11.28 0.8594
2024-11-13 2024-09-30 13F CISCO SYS COM 17275R102 30,000 -2,500 -7.69 1,597 3.37 0.6382
2024-08-12 2024-06-30 13F CISCO SYS COM 17275R102 32,500 2,500 8.33 1,544 3.14 0.7953
2024-05-15 2024-03-31 13F CISCO SYS COM 17275R102 30,000 5,000 20.00 1,497 18.53 0.7374
2024-02-13 2023-12-31 13F CISCO SYS COM 17275R102 25,000 2,500 11.11 1,263 4.47 0.6854
2023-11-13 2023-09-30 13F CISCO SYS COM 17275R102 22,500 0 0.00 1,210 3.87 0.6589
2023-08-09 2023-06-30 13F CISCO SYS COM 17275R102 22,500 2,500 12.50 1,164 11.39 0.6150
2023-05-15 2023-03-31 13F CISCO SYS COM 17275R102 20,000 0 0.00 1,046 9.77 0.6400
2023-02-13 2022-12-31 13F CISCO SYS COM 17275R102 20,000 0 0.00 953 19.00 0.6439
2022-11-14 2022-09-30 13F CISCO SYS COM 17275R102 20,000 5,000 33.33 800 25.00 0.5169
2022-08-11 2022-06-30 13F CISCO SYS COM 17275R102 15,000 5,000 50.00 640 14.70 0.3811
2022-05-13 2022-03-31 13F CISCO SYS COM 17275R102 10,000 10,000 558 0.2444
2021-02-12 2020-12-31 13F CISCO SYS COM 17275R102 0 -30,000 -100.00 0 -100.00
2020-11-13 2020-09-30 13F CISCO SYS COM 17275R102 30,000 5,000 20.00 1,182 1.37 0.6044
2020-08-13 2020-06-30 13F CISCO SYS COM 17275R102 25,000 -7,500 -23.08 1,166 -8.76 0.6525
2020-05-12 2020-03-31 13F CISCO SYS COM 17275R102 32,500 32,500 1,278 0.8361
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-05-09 2025-03-31 13F CISCO SYS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-11 2024-12-31 13F CISCO SYS COM Call 12,500 740 n/a n/a n/a
2022-08-11 2022-06-30 13F CISCO SYS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-13 2022-03-31 13F CISCO SYS COM Call 5,000 279 n/a n/a n/a
2020-11-13 2020-09-30 13F CISCO SYS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-13 2020-06-30 13F CISCO SYS COM Call 10,000 466 n/a n/a n/a
2020-05-12 2020-03-31 13F CISCO SYS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-12 2019-12-31 13F CISCO SYS COM Call 15,000 719 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F CISCO SYS COM Put 15,000 1,164 n/a n/a n/a
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.