TopBuild Corp.
MX ˙ BMV ˙ US89055F1030
SecurityMX:BLD / TopBuild Corp.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership16,219 shares
Latest Disclosed Value $ 5,697,735
Bnp Paribas Arbitrage, Sa ownership in BLD / TopBuild Corp.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 16,219 shares of TopBuild Corp. (MX:BLD) valued at $5,697,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 14,811 shares of TopBuild Corp.. This represents a change in shares of 9.51% during the quarter.

Bnp Paribas Arbitrage, Sa has a history of taking positions in derivatives of the underlying security (BLD) 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:BLD / TopBuild Corp. 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)
2026-05-12 2026-03-31 13F TopBuild Equity 89055F103 16,219 1,408 9.51 5,698 -7.80 0.0003
2026-02-10 2025-12-31 13F TopBuild Equity 89055F103 14,811 -13,553 -47.78 6,179 -44.26 0.0028
2025-11-13 2025-09-30 13F TopBuild Equity 89055F103 28,364 3,946 16.16 11,086 40.24 0.0059
2025-08-14 2025-06-30 13F TopBuild Equity 89055F103 24,418 -18,115 -42.59 7,905 -39.05 0.0045
2025-05-14 2025-03-31 13F TopBuild Equity 89055F103 42,533 19,668 86.02 12,970 82.21 0.0076
2025-02-14 2024-12-31 13F TopBuild Equity 89055F103 22,865 10,804 89.58 7,119 45.09 0.0040
2024-11-13 2024-09-30 13F TopBuild Equity 89055F103 12,061 -11,896 -49.66 4,907 -46.84 0.0033
2024-08-13 2024-06-30 13F TopBuild Equity 89055F103 23,957 1,048 4.57 9,230 -8.59 0.0075
2024-05-01 2024-03-31 13F TopBuild Equity 89055F103 22,909 10,140 79.41 10,097 111.30 0.0089
2024-02-14 2023-12-31 13F/A-2 TopBuild Equity 89055F103 12,769 -12,957 -50.37 4,779 -26.17 0.0054
2024-02-07 2023-12-31 13F/A-1 TopBuild Equity 89055F103 12,769 -12,957 4,779 0.0007
2024-02-07 2023-12-31 13F TopBuild Equity 89055F103 12,769 4,779
2023-11-14 2023-09-30 13F TopBuild Equity 89055F103 25,726 7,948 44.71 6,473 36.86 0.0083
2023-08-09 2023-06-30 13F TopBuild Equity 89055F103 17,778 -21,245 -54.44 4,729 -41.78 0.0059
2023-05-12 2023-03-31 13F TOPBUILD EQUITY 89055F103 39,023 -7,508 -16.14 8,122 11.55 0.0114
2023-02-14 2022-12-31 13F TopBuild Equity 89055F103 46,531 23,541 102.40 7,282 92.21 0.0112
2022-11-16 2022-09-30 13F/A-1 TopBuild Equity 89055F103 22,990 12,127 111.64 3,788 108.71 0.0061
2022-11-15 2022-09-30 13F TopBuild Equity 89055F103 22,990 12,127 3,788 0.0009
2022-08-12 2022-06-30 13F TopBuild Equity 89055F103 10,863 1,956 21.96 1,816 12.38 0.0028
2022-05-18 2022-03-31 13F/A-1 TopBuild Equity 89055F103 8,907 -11,442 -56.23 1,616 -71.23 0.0022
2022-02-09 2021-12-31 13F TOPBUILD EQUITY 89055F103 20,349 -33,979 -62.54 5,614 -49.54 0.0080
2021-11-16 2021-09-30 13F/A-1 TOPBUILD EQUITY 89055F103 54,328 113 0.21 11,127 3.77 0.0158
2021-11-12 2021-09-30 13F TOPBUILD EQUITY 89055F103 31,830 -22,385 5,433 0.0000
2021-08-10 2021-06-30 13F TOPBUILD EQUITY 89055F103 54,215 40,028 282.15 10,723 260.89 0.0142
2021-05-07 2021-03-31 13F TOPBUILD EQUITY 89055F103 14,187 5,250 58.74 2,971 80.61 0.0043
2021-02-10 2020-12-31 13F TOPBUILD EQUITY 89055F103 8,937 -22,893 -71.92 1,645 -69.72 0.0031
2020-10-30 2020-09-30 13F TOPBUILD EQUITY 89055F103 31,830 -4,464 -12.30 5,433 31.58 0.0078
2020-08-06 2020-06-30 13F TOPBUILD EQUITY 89055F103 36,294 24,355 204.00 4,129 382.92 0.0073
2020-05-13 2020-03-31 13F TOPBUILD EQUITY 89055F103 11,939 704 6.27 855 -26.17 0.0018
2020-02-12 2019-12-31 13F TOPBUILD EQUITY 89055F103 11,235 4,018 55.67 1,158 66.62 0.0021
2019-11-07 2019-09-30 13F TOPBUILD EQUITY 89055F103 7,217 2,252 45.36 696 69.51 0.0012
2019-07-30 2019-06-30 13F TOPBUILD EQUITY 89055F103 4,965 -3,472 -41.15 411 -24.91 0.0008
2019-04-25 2019-03-31 13F TOPBUILD EQUITY 89055F103 8,437 7,386 702.76 547 1,061.70 0.0012
2019-02-12 2018-12-31 13F TOPBUILD EQUITY 89055F103 1,051 -1,198 -53.27 47 -62.99 0.0001
2018-11-07 2018-09-30 13F TOPBUILD EQUITY 89055F103 2,249 156 7.45 128 -22.09 0.0002
2018-07-25 2018-06-30 13F TOPBUILD EQUITY 89055F103 2,093 -40,667 -95.11 164 -95.02 0.0003
2018-05-11 2018-03-31 13F TOPBUILD EQUITY 89055F103 42,760 27,120 173.40 3,272 176.27 0.0061
2018-03-05 2017-12-31 13F/A-1 TOPBUILD EQUITY 89055F103 15,640 -3,604 -18.73 1,185 -5.58 0.0021
2018-02-01 2017-12-31 13F TOPBUILD EQUITY 89055F103 15,640 -3,604 1,185
2017-11-03 2017-09-30 13F TOPBUILD STOCK 89055F103 19,244 7,183 59.56 1,254 95.94 0.0031
2017-08-03 2017-06-30 13F TOPBUILD STOCK 89055F103 12,061 3,838 46.67 640 65.80 0.0019
2017-05-03 2017-03-31 13F TOPBUILD STOCK 89055F103 8,223 740 9.89 386 45.11 0.0010
2017-02-14 2016-12-31 13F TOPBUILD STOCK 89055F103 7,483 1,120 17.60 266 26.07 0.0012
2016-10-05 2016-09-30 13F * TOPBUILD CORP COM STOCK 89055F103 6,363 -6,177 -49.26 211 -53.42 0.0009
2016-07-06 2016-06-30 13F * TOPBUILD CORP COM STOCK 89055F103 12,540 -8,682 -40.91 454 -28.21 0.0020
2016-04-22 2016-03-31 13F * TOPBUILD CORP COM STOCK 89055F103 21,222 21,157 32,549.23 631 31,450.00 0.0027
2016-04-19 2015-12-31 13F/A-1 * TOPBUILD CORP COM STOCK 89055F103 65 -424 -86.71 2 -86.67 0.0000
2016-02-10 2015-12-31 13F * TOPBUILD CORP COM STOCK 89055F103 65 2
2015-11-13 2015-09-30 13F * TOPBUILD CORP COM STOCK 89055F103 489 489 15 0.0000
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
(%)
2024-05-01 2024-03-31 13F TopBuild Option Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-07 2023-12-31 13F/A TopBuild Option Call 70 2,620 n/a n/a n/a
2024-02-14 2023-12-31 13F/A TopBuild Option Call 70 2,620 n/a n/a n/a
2024-02-07 2023-12-31 13F TopBuild Option Call 70 2,620 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.