Block, Inc.
US ˙ NYSE ˙ US8522341036

SecurityXYZ / Block, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in XYZ / Block, Inc.

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Block, Inc. (US:XYZ) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 7,340 shares of Block, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (XYZ) 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.

XYZ / Block, 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)
2026-06-02 2026-03-31 13F/A-1 BLOCK INC CL A Stock 852234103 0 -7,340 -100.00 0 -100.00
2026-02-11 2025-12-31 13F BLOCK INC CL A Stock 852234103 7,340 2,051 38.78 478 24.87 0.0087
2025-11-13 2025-09-30 13F BLOCK INC CL A Stock 852234103 5,289 345 6.98 382 14.03 0.0070
2025-07-08 2025-06-30 13F BLOCK INC CL A Stock 852234103 4,944 1,096 28.48 336 60.29 0.0067
2025-04-08 2025-03-31 13F BLOCK INC CL A Stock 852234103 3,848 -259 -6.31 209 -40.11 0.0047
2025-02-10 2024-12-31 13F BLOCK INC CL A Stock 852234103 4,107 131 3.29 349 31.20 0.0079
2024-11-13 2024-09-30 13F BLOCK INC CL A Stock 852234103 3,976 306 8.34 267 12.71 0.0063
2024-08-08 2024-06-30 13F BLOCK INC CL A Stock 852234103 3,670 -220 -5.66 237 -28.27 0.0061
2024-05-06 2024-03-31 13F BLOCK INC CL A Stock 852234103 3,890 -249 -6.02 329 2.81 0.0089
2024-02-12 2023-12-31 13F BLOCK INC CL A Stock 852234103 4,139 -1,004 -19.52 320 40.97 0.0095
2024-05-20 2023-09-30 13F/A-1 BLOCK INC CL A Stock 852234103 5,143 -643 -11.11 228 -41.04 0.0076
2023-11-14 2023-09-30 13F BLOCK INC CL A Stock 852234103 5,143 -643 228 0.0076
2024-05-20 2023-06-30 13F/A-1 BLOCK INC CL A Stock 852234103 5,786 -538 -8.51 385 -11.29 0.0124
2023-08-04 2023-06-30 13F BLOCK INC CL A Stock 852234103 5,786 -538 385 0.0124
2024-05-20 2023-03-31 13F/A-1 BLOCK INC CL A Stock 852234103 6,324 -350 -5.24 434 3.58 0.0146
2023-04-25 2023-03-31 13F BLOCK INC CL A Stock 852234103 6,324 -350 434 0.0146
2023-02-06 2022-12-31 13F BLOCK INC CL A Stock 852234103 6,674 -2,964 -30.75 419 -20.94 0.0182
2022-11-10 2022-09-30 13F BLOCK INC CL A Stock 852234103 9,638 1,381 16.73 530 4.54 0.0244
2022-08-01 2022-06-30 13F BLOCK INC CL A Stock 852234103 8,257 -532 -6.05 507 -58.81 0.0233
2022-04-28 2022-03-31 13F BLOCK INC CL A Stock 852234103 8,789 -2,742 -23.78 1,231 -33.89 0.0488
2022-01-20 2021-12-31 13F BLOCK INC CL A Stock 852234103 11,531 -1,072 -8.51 1,862 -38.41 0.0691
2021-11-02 2021-09-30 13F/A-1 SQUARE INC CL A Stock 852234103 12,603 4,111 48.41 3,023 46.04 0.1219
2021-08-06 2021-06-30 13F SQUARE INC CL A Stock 852234103 8,492 579 7.32 2,070 15.19 0.0877
2021-04-23 2021-03-31 13F SQUARE INC CL A Stock 852234103 7,913 -1,748 -18.09 1,797 -14.55 0.0848
2021-02-02 2020-12-31 13F SQUARE INC CL A Stock 852234103 9,661 2,536 35.59 2,103 81.61 0.1142
2020-10-27 2020-09-30 13F SQUARE INC CL A Stock 852234103 7,125 -424 -5.62 1,158 46.21 0.0717
2020-07-16 2020-06-30 13F SQUARE INC CL A Stock 852234103 7,549 2,628 53.40 792 208.17 0.0517
2020-04-27 2020-03-31 13F SQUARE INC CL A Stock 852234103 4,921 -3,896 -44.19 257 -53.44 0.0208
2020-01-30 2019-12-31 13F SQUARE INC CL A Stock 852234103 8,817 2,707 44.30 552 45.65 0.0414
2019-11-01 2019-09-30 13F SQUARE INC CL A Stock 852234103 6,110 359 6.24 379 -9.11 0.0325
2019-08-05 2019-06-30 13F SQUARE INC CL A Stock 852234103 5,751 -3,283 -36.34 417 -38.40 0.0407
2019-05-01 2019-03-31 13F SQUARE INC CL A Stock 852234103 9,034 2,810 45.15 677 93.98 0.0760
2019-02-05 2018-12-31 13F SQUARE INC CL A Stock 852234103 6,224 -4,574 -42.36 349 -67.35 0.0487
2018-11-01 2018-09-30 13F SQUARE INC CL A Stock 852234103 10,798 -1,376 -11.30 1,069 42.53 0.1328
2018-07-30 2018-06-30 13F SQUARE INC CL A Stock 852234103 12,174 -649 -5.06 750 18.86 0.1072
2018-05-08 2018-03-31 13F SQUARE INC CL A Stock 852234103 12,823 -1,413 -9.93 631 27.73 0.0985
2018-02-13 2017-12-31 13F SQUARE INC CL A Stock 852234103 14,236 -846 -5.61 494 -18.08 0.0808
2017-11-15 2017-09-30 13F/A-1 SQUARE INC CL A Stock 852234103 15,082 -100 -0.66 603 50.75 0.1037
2017-08-07 2017-06-30 13F SQUARE INC CL A Stock 852234103 15,182 10,800 246.46 400 400.00 0.0754
2017-05-12 2017-03-31 13F/A-1 SQUARE INC CL A Stock 852234103 4,382 1,981 82.51 80 142.42 0.0159
2017-05-12 2017-03-31 13F SQUARE INC CL A Stock 852234103 4,382 80
2017-02-14 2016-12-31 13F SQUARE INC CL A Stock 852234103 2,401 2,401 33 0.0077
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
(%)
2022-01-19 2021-12-31 13F SQUARE INC CL A Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F SQUARE INC CL A Stock Call 8,492 2,070 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.