Vanguard Bond Index Funds - Vanguard Total Bond Market ETF

SecurityBND / Vanguard Bond Index Funds - Vanguard Total Bond Market ETF
InstitutionSei Investments Co
Latest Disclosed Ownership17,855,111 shares
Latest Disclosed Value $ 1,322,527,510
Sei Investments Co ownership in BND / Vanguard Bond Index Funds - Vanguard Total Bond Market ETF

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 17,855,111 shares of Vanguard Bond Index Funds - Vanguard Total Bond Market ETF (US:BND) valued at $1,322,528,072 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 16,881,213 shares of Vanguard Bond Index Funds - Vanguard Total Bond Market ETF. This represents a change in shares of 5.77% during the quarter. The current value of the position is $1,304,494,410 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (BND) 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.

BND / Vanguard Bond Index Funds - Vanguard Total Bond Market ETF 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)
2026-02-13 2025-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 17,855,111 973,898 5.77 1,322,528 5.34 1.3054
2025-11-13 2025-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 16,881,213 1,302,130 8.36 1,255,456 9.45 1.3500
2025-08-14 2025-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 15,579,083 4,971,692 46.87 1,147,087 47.23 1.3296
2025-05-14 2025-03-31 13F/A-1 VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 10,607,391 628,268 6.30 779,113 8.57 1.0028
2025-05-13 2025-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 10,607,391 628,268 779,113 0.8474
2025-02-11 2024-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 9,979,123 1,026,412 11.46 717,599 6.72 0.9216
2024-11-12 2024-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 8,952,711 -3,722,417 -29.37 672,441 -26.37 0.8732
2024-08-13 2024-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 12,675,128 746,645 6.26 913,244 5.41 1.2938
2024-05-07 2024-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 11,928,483 -4,384,488 -26.88 866,367 -27.79 1.2694
2024-02-14 2023-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 16,312,971 426,673 2.69 1,199,820 8.23 1.9260
2023-11-14 2023-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 15,886,298 1,192,615 8.12 1,108,547 3.79 1.9919
2023-08-11 2023-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 14,693,683 -4,924,590 -25.10 1,068,083 -26.26 1.8630
2023-05-12 2023-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 19,618,273 555,121 2.91 1,448,416 5.76 2.6904
2023-02-10 2022-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 19,063,152 -1,250,305 -6.16 1,369,497 -5.48 3.0433
2022-11-14 2022-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 20,313,457 -74,186 -0.36 1,448,959 -5.58 3.2321
2022-08-15 2022-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 20,387,643 319,421 1.59 1,534,571 -3.88 3.3139
2022-05-13 2022-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 20,068,222 684,872 3.53 1,596,484 -2.82 3.2089
2022-02-14 2021-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 19,383,350 3,152,687 19.42 1,642,801 18.43 3.0820
2021-11-12 2021-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 16,230,663 697,000 4.49 1,387,147 3.95 2.9103
2021-08-06 2021-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 15,533,663 2,109,285 15.71 1,334,387 12.70 2.9588
2021-05-12 2021-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 13,424,378 0 0.00 1,183,989 0.00 2.9832
2021-02-08 2020-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 13,424,378 925,552 7.41 1,183,989 7.35 3.0610
2020-12-04 2020-09-30 13F/A-1 VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 12,498,826 869,856 7.48 1,102,938 7.35 3.1938
2020-11-06 2020-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 12,500,041 871,071 1,103,045 2,655,887.1103
2020-08-17 2020-06-30 13F/A-1 VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 11,628,970 -307,854 -2.58 1,027,445 0.84 3.1885
2020-08-11 2020-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 11,628,970 -307,854 1,027,445 2,786,999.2532
2020-05-14 2020-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 11,936,824 -862,865 -6.74 1,018,891 -5.08 3.7424
2020-02-06 2019-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 12,799,689 781,695 6.50 1,073,436 5.79 3.2019
2019-11-12 2019-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 12,017,994 439,851 3.80 1,014,715 5.49 2.5957
2019-08-14 2019-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 11,578,143 532,706 4.82 961,872 7.26 3.1419
2019-05-15 2019-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 11,045,437 487,190 4.61 896,728 7.21 3.0115
2019-02-13 2018-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 10,558,247 -553,124 -4.98 836,416 -4.36 2.9779
2018-11-08 2018-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 11,111,371 -168,499 -1.49 874,533 -2.10 3.1698
2018-08-03 2018-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 11,279,870 -15,788 -0.14 893,253 -1.06 3.0360
2018-05-11 2018-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 11,295,658 2,520,782 28.73 902,863 26.14 3.4609
2018-02-08 2017-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 8,774,876 -261,686 -2.90 715,766 -3.36 2.4855
2017-11-06 2017-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 9,036,562 2,846,914 45.99 740,636 46.23 2.6326
2017-07-31 2017-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 6,189,648 796,615 14.77 506,498 15.83 2.0192
2017-05-05 2017-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 5,393,033 2,454,879 83.55 437,268 84.21 1.9162
2017-02-02 2016-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 2,938,154 223,464 8.23 237,373 3.92 1.1494
2016-11-04 2016-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 2,714,690 710,833 35.47 228,414 35.22 1.1603
2016-08-11 2016-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 2,003,857 340,803 20.49 168,925 22.67 1.0132
2016-05-10 2016-03-31 13F/A-1 VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,663,054 157,114 10.43 137,710 13.23 0.8570
2016-02-03 2015-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,505,940 236,141 18.60 121,620 16.90 0.7412
2015-11-02 2015-09-30 13F/A-1 VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,269,799 192,776 17.90 104,034 18.87 0.9549
2015-10-30 2015-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,269,799 104,036
2015-08-07 2015-06-30 13F/A-1 VALUEVISION MEDIA PUT 921937835 0 -877,885 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,077,023 199,138 22.68 87,519 19.57 0.7912
2015-08-04 2015-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 1,077,023 199,138 87,519 0.7912
2015-05-14 2015-03-31 13F/A-1 VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 877,885 168,776 23.80 73,193 25.31 0.6356
2015-05-01 2015-03-31 13F VALUEVISION MEDIA PUT 921937835 877,885 877,885 73,193 0.6356
2015-02-10 2014-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 709,109 709,109 58,410 0.5163
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
(%)
2015-08-07 2015-06-30 13F/A VALUEVISION MEDIA PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F VALUEVISION MEDIA PUT 877,885 73,193 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.