BlackRock, Inc.
MX ˙ BMV
SecurityMX:BLK / BlackRock, Inc.
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership285,902 shares
Latest Disclosed Value $ 274,738,160
Hsbc Holdings Plc ownership in BLK / BlackRock, Inc.

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 285,902 shares of BlackRock, Inc. (MX:BLK) valued at $274,738,160 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 318,791 shares of BlackRock, Inc.. This represents a change in shares of -10.32% during the quarter.

Hsbc Holdings Plc has a history of taking positions in derivatives of the underlying security (BLK) in the form of stock options. The firm currently holds call options representing 3,300 of underlying shares valued at $3,556,047 USD and put options representing 3,300 of underlying shares valued at $3,164,634 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:BLK / BlackRock, 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)
2026-04-30 2026-03-31 13F BLACKROCK COM 09290D101 285,902 -32,889 -10.32 274,738 -19.68 0.0191
2026-03-20 2025-12-31 13F/A-1 BLACKROCK COM 09290D101 318,791 -19,950 -5.89 342,038 -13.31 0.1743
2026-03-06 2025-12-31 13F BLACKROCK COM 09290D101 318,791 -19,950 342,038 0.1944
2025-11-13 2025-09-30 13F BLACKROCK COM 09290D101 338,741 -30,894 -8.36 394,557 1.88 0.2177
2025-08-13 2025-06-30 13F BLACKROCK COM 09290D101 369,635 46,108 14.25 387,262 27.20 0.2326
2025-05-14 2025-03-31 13F BLACKROCK COM 09290D101 323,527 -151,893 -31.95 304,459 -37.46 0.1882
2025-02-14 2024-12-31 13F BLACKROCK COM 09290D101 475,420 475,420 486,856 0.2832
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
(%)
2026-03-20 2025-12-31 13F/A BLACKROCK COM Call 3,300 -15.38 3,556 -21.52 n/a n/a n/a
2025-11-13 2025-09-30 13F BLACKROCK COM Call 3,900 69.57 4,532 88.71 n/a n/a n/a
2025-08-13 2025-06-30 13F BLACKROCK COM Call 2,300 -17.86 2,402 -7.87 n/a n/a n/a
2025-05-14 2025-03-31 13F BLACKROCK COM Call 2,800 -33.33 2,606 -39.35 n/a n/a n/a
2025-02-14 2024-12-31 13F BLACKROCK COM Call 4,200 4,298 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
(%)
2026-04-30 2026-03-31 13F BLACKROCK COM Put 3,300 -67.65 3,165 -71.21 n/a n/a n/a
2026-03-20 2025-12-31 13F/A BLACKROCK COM Put 10,200 37.84 10,991 27.83 n/a n/a n/a
2025-11-13 2025-09-30 13F BLACKROCK COM Put 7,400 64.44 8,599 82.98 n/a n/a n/a
2025-08-13 2025-06-30 13F BLACKROCK COM Put 4,500 -50.55 4,699 -44.52 n/a n/a n/a
2025-05-14 2025-03-31 13F BLACKROCK COM Put 9,100 -41.29 8,471 -46.60 n/a n/a n/a
2025-02-14 2024-12-31 13F BLACKROCK COM Put 15,500 15,861 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.