시스코 시스템즈, Inc.
MX ˙ BMV ˙ US17275R1023
SecurityMX:CSCO / Cisco Systems, Inc.
InstitutionAbbot Financial Management, Inc.
Latest Disclosed Ownership61,940 shares
Latest Disclosed Value $ 4,805,956
Abbot Financial Management, Inc. ownership in CSCO / Cisco Systems, Inc.

On May 13, 2026 - Abbot Financial Management, Inc. filed a 13F-HR form disclosing ownership of 61,940 shares of Cisco Systems, Inc. (MX:CSCO) valued at $4,805,956 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 62,306 shares of Cisco Systems, Inc.. This represents a change in shares of -0.59% during the quarter.

Abbot Financial Management, Inc. 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 .

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)
2026-05-13 2026-03-31 13F CISCO SYS COM 17275R102 61,940 -366 -0.59 4,806 0.13 2.0073
2026-02-13 2025-12-31 13F CISCO SYS COM 17275R102 62,306 -520 -0.83 4,799 11.66 1.9902
2025-11-10 2025-09-30 13F CISCO SYS COM 17275R102 62,826 -994 -1.56 4,299 -2.91 1.8364
2025-08-14 2025-06-30 13F CISCO SYS COM 17275R102 63,820 -476 -0.74 4,428 11.60 2.0423
2025-05-07 2025-03-31 13F CISCO SYS COM 17275R102 64,296 7 0.01 3,968 4.26 2.0584
2025-02-06 2024-12-31 13F CISCO SYS COM 17275R102 64,289 -444 -0.69 3,806 10.45 1.8948
2024-11-08 2024-09-30 13F CISCO SYS COM 17275R102 64,733 -1,069 -1.62 3,445 10.20 1.7338
2024-08-09 2024-06-30 13F CISCO SYS COM 17275R102 65,802 -1,478 -2.20 3,126 -6.88 1.6748
2024-05-13 2024-03-31 13F CISCO SYS COM 17275R102 67,280 -832 -1.22 3,358 -2.44 1.8527
2024-02-09 2023-12-31 13F CISCO SYS COM 17275R102 68,112 83 0.12 3,441 -5.91 2.0702
2023-11-13 2023-09-30 13F CISCO SYS COM 17275R102 68,029 -1,909 -2.73 3,657 1.08 2.4594
2023-08-14 2023-06-30 13F CISCO SYS COM 17275R102 69,938 -372 -0.53 3,619 -1.55 2.3220
2023-05-15 2023-03-31 13F CISCO SYS COM 17275R102 70,310 -1,442 -2.01 3,675 7.52 2.4670
2023-02-09 2022-12-31 13F CISCO SYS COM 17275R102 71,752 -2,090 -2.83 3,418 15.71 2.3380
2022-11-14 2022-09-30 13F CISCO SYS COM 17275R102 73,842 315 0.43 2,954 -5.77 2.1038
2022-08-09 2022-06-30 13F CISCO SYS COM 17275R102 73,527 -37 -0.05 3,135 -23.57 1.8949
2022-05-12 2022-03-31 13F CISCO SYS COM 17275R102 73,564 -1,347 -1.80 4,102 -13.59 2.0027
2022-02-15 2021-12-31 13F CISCO SYS COM 17275R102 74,911 -527 -0.70 4,747 15.61 2.1200
2021-11-04 2021-09-30 13F CISCO SYS COM 17275R102 75,438 -297 -0.39 4,106 2.29 1.8674
2021-08-05 2021-06-30 13F CISCO SYS COM 17275R102 75,735 -319 -0.42 4,014 2.06 1.7546
2021-05-13 2021-03-31 13F CISCO SYS COM 17275R102 76,054 435 0.58 3,933 16.22 1.7845
2021-02-11 2020-12-31 13F CISCO SYS Stock 17275R102 75,619 -2,344 -3.01 3,384 10.19 1.9494
2020-10-26 2020-09-30 13F CISCO SYS Stock 17275R102 77,963 -1,166 -1.47 3,071 -16.80 1.9930
2020-07-22 2020-06-30 13F CISCO SYS Stock 17275R102 79,129 -242 -0.30 3,691 18.30 2.5398
2020-05-12 2020-03-31 13F CISCO SYS Stock 17275R102 79,371 1,937 2.50 3,120 -15.99 2.5391
2020-02-12 2019-12-31 13F CISCO SYS Stock 17275R102 77,434 1,074 1.41 3,714 -1.56 2.3523
2019-11-13 2019-09-30 13F CISCO SYS Stock 17275R102 76,360 103 0.14 3,773 -9.61 2.6927
2019-08-08 2019-06-30 13F CISCO SYS Stock 17275R102 76,257 -1,847 -2.36 4,174 -1.02 3.0257
2019-05-15 2019-03-31 13F CISCO SYS Stock 17275R102 78,104 -696 -0.88 4,217 23.52 3.2733
2019-02-07 2018-12-31 13F CISCO SYS Stock 17275R102 78,800 -1,196 -1.50 3,414 -12.28 3.0068
2018-11-09 2018-09-30 13F CISCO SYS Stock 17275R102 79,996 -577 -0.72 3,892 12.26 2.8962
2018-08-09 2018-06-30 13F CISCO SYS Stock 17275R102 80,573 -246 -0.30 3,467 0.03 2.7584
2018-05-02 2018-03-31 13F CISCO SYS Stock 17275R102 80,819 -497 -0.61 3,466 11.30 2.7828
2018-02-12 2017-12-31 13F CISCO SYS Stock 17275R102 81,316 6,154 8.19 3,114 19.82 2.4822
2017-10-25 2017-09-30 13F CISCO SYS INC COM Stock 17275R102 75,162 2,155 2.95 2,599 13.74 2.1652
2017-08-11 2017-06-30 13F CISCO SYS INC COM Stock 17275R102 73,007 73,007 2,285 2.0486
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
(%)
2021-05-13 2021-03-31 13F CISCO SYS Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F CISCO SYS Stock Call 1,800 0.00 47 0.00 n/a n/a n/a
2020-10-26 2020-09-30 13F CISCO SYS Stock Call 1,800 -83.49 47 -83.39 n/a n/a n/a
2020-07-22 2020-06-30 13F CISCO SYS Stock Call 10,900 0.00 283 0.00 n/a n/a n/a
2020-05-12 2020-03-31 13F CISCO SYS Stock Call 10,900 65.15 283 65.50 n/a n/a n/a
2020-02-12 2019-12-31 13F CISCO SYS Stock Call 6,600 22.22 171 21.28 n/a n/a n/a
2019-11-13 2019-09-30 13F CISCO SYS Stock Call 5,400 125.00 141 127.42 n/a n/a n/a
2019-08-08 2019-06-30 13F CISCO SYS Stock Call 2,400 50.00 62 51.22 n/a n/a n/a
2019-05-15 2019-03-31 13F CISCO SYS Stock Call 1,600 0.00 41 0.00 n/a n/a n/a
2019-02-07 2018-12-31 13F CISCO SYS Stock Call 1,600 33.33 41 32.26 n/a n/a n/a
2018-11-09 2018-09-30 13F CISCO SYS Stock Call 1,200 200.00 31 210.00 n/a n/a n/a
2018-08-09 2018-06-30 13F CISCO SYS Stock Call 400 -33.33 10 -37.50 n/a n/a n/a
2018-05-02 2018-03-31 13F CISCO SYS Stock Call 600 -60.00 16 -58.97 n/a n/a n/a
2018-02-12 2017-12-31 13F CISCO SYS Stock Call 1,500 39 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.