International Business Machines Corporation
MX ˙ BMV ˙ US4592001014
SecurityMX:IBM / International Business Machines Corporation
InstitutionItau Unibanco Holding S.A.
Latest Disclosed Ownership509 shares
Latest Disclosed Value $ 123,377
Itau Unibanco Holding S.A. ownership in IBM / International Business Machines Corporation

On May 15, 2026 - Itau Unibanco Holding S.A. filed a 13F-HR/A form disclosing ownership of 509 shares of International Business Machines Corporation (MX:IBM) valued at $123,377 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 44,059 shares of International Business Machines Corporation. This represents a change in shares of -98.84% during the quarter.

Itau Unibanco Holding S.A. has a history of taking positions in derivatives of the underlying security (IBM) in the form of stock options.

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:IBM / International Business Machines Corporation 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)
2026-05-15 2026-03-31 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 509 -43,550 -98.84 123 -99.06 0.0023
2026-05-14 2026-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 44,059 0 13,051 0.2472
2026-02-13 2025-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 44,059 44,059 13,051 0.3128
2024-02-14 2023-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -1,284 -100.00 0 -100.00
2023-11-14 2023-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,284 46 3.72 180 9.09 0.0080
2023-08-14 2023-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,238 1,238 166 0.0077
2020-05-15 2020-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -809 -100.00 0 -100.00
2020-02-14 2019-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 809 809 108 0.0055
2019-11-14 2019-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 0 -4,800 -100.00 0 -100.00
2019-08-14 2019-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,800 4,016 512.24 662 643.82 0.0312
2019-05-15 2019-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 784 0 0.00 89 0.00 0.0040
2019-02-13 2018-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 784 -1,040 -57.02 89 -67.75 0.0040
2018-11-13 2018-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 1,824 -502,238 -99.64 276 -99.61 0.0157
2018-08-10 2018-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 504,062 497,113 7,153.73 70,417 6,505.72 7.4542
2018-05-14 2018-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 6,949 -3,874 -35.79 1,066 -35.78 0.0069
2018-02-09 2017-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 10,823 6,786 168.10 1,660 -10.37 0.0990
2017-11-14 2017-09-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 4,037 3,907 3,005.38 1,852 9,160.00 0.1262
2017-08-14 2017-06-30 13F INTERNATIONAL BUSINESS MACHS COM 459200101 130 -30 -18.75 20 -28.57 0.0023
2017-05-15 2017-03-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 160 -190 -54.29 28 -51.72 0.0033
2017-02-14 2016-12-31 13F INTERNATIONAL BUSINESS MACHS COM 459200101 350 30 9.38 58 13.73 0.0070
2016-11-21 2016-09-30 13F/A-1 INTERNATIONAL BUSINESS MACHS COM 459200101 320 320 51 0.0058
2016-11-14 2016-09-30 13F WHIRLPOOL COM 459200101 320 51
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
(%)
2019-11-14 2019-09-30 13F INTERNATIONAL BUSINESS MACHS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-06-30 13F INTERNATIONAL BUSINESS MACHS PUT Put 550 1 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.