Vanguard Bond Index Funds - Vanguard Total Bond Market ETF

SecurityBND / Vanguard Bond Index Funds - Vanguard Total Bond Market ETF
InstitutionCambridge Advisors Inc.
Latest Disclosed Ownership730,638 shares
Latest Disclosed Value $ 53,804,167
Cambridge Advisors Inc. reports 0.01% increase in ownership of BND / Vanguard Bond Index Funds - Vanguard Total Bond Market ETF

On April 16, 2026 - Cambridge Advisors Inc. filed a 13F-HR form disclosing ownership of 730,638 shares of Vanguard Bond Index Funds - Vanguard Total Bond Market ETF (US:BND) valued at $53,804,182 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 730,593 shares of Vanguard Bond Index Funds - Vanguard Total Bond Market ETF. This represents a change in shares of 0.01% during the quarter. The current value of the position is $53,453,476 USD.

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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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)
2026-04-16 2026-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 730,638 45 0.01 53,804 -0.57 10.4409
2026-01-21 2025-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 730,593 35,860 5.16 54,115 4.74 10.3012
2025-10-15 2025-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 694,733 46,592 7.19 51,667 8.27 10.0964
2025-07-16 2025-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 648,141 -16,851 -2.53 47,723 -2.30 9.9753
2025-04-24 2025-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 664,992 5,515 0.84 48,844 3.00 10.6984
2025-01-16 2024-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 659,477 8,611 1.32 47,423 -2.99 10.5855
2024-10-23 2024-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 650,866 12,515 1.96 48,887 6.29 10.6806
2024-07-11 2024-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 638,351 35,910 5.96 45,993 5.11 10.6869
2024-04-16 2024-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 602,441 13,887 2.36 43,755 1.08 10.3178
2024-01-17 2023-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 588,554 -38,092 -6.08 43,288 -1.00 10.8763
2023-10-18 2023-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 626,646 -3,328 -0.53 43,727 -4.51 11.7410
2023-07-13 2023-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 629,974 -1,700 -0.27 45,793 -1.81 11.7167
2023-04-13 2023-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 631,674 32,129 5.36 46,636 8.28 11.9378
2023-01-23 2022-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 599,545 1,258 0.21 43,071 0.93 11.5610
2022-10-17 2022-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 598,287 -6,522 -1.08 42,676 -6.24 12.2289
2022-07-18 2022-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 604,809 -31,812 -5.00 45,518 -10.11 12.4395
2022-05-05 2022-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 636,621 13,363 2.14 50,637 -4.13 12.0671
2022-01-14 2021-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 623,258 29,188 4.91 52,821 4.05 11.9321
2021-10-19 2021-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 594,070 10,870 1.86 50,763 1.34 12.3669
2021-07-21 2021-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 583,200 38,213 7.01 50,091 8.49 12.1131
2021-04-22 2021-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 544,987 27,120 5.24 46,171 1.09 11.7988
2021-01-25 2020-12-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 517,867 29,220 5.98 45,671 5.95 12.2943
2020-10-15 2020-09-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 488,647 6,255 1.30 43,108 1.16 12.6971
2020-07-17 2020-06-30 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 482,392 -4,675 -0.96 42,615 2.51 13.3447
2020-04-21 2020-03-31 13F VANGUARD BD INDEX FDS TOTAL BND MRKT 921937835 487,067 -5,910 -1.20 41,571 0.56 15.1451
2020-01-28 2019-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 492,977 20,190 4.27 41,341 3.57 12.6118
2019-10-25 2019-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 472,787 -8,350 -1.74 39,917 -0.13 13.1661
2019-07-26 2019-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 481,137 38,370 8.67 39,968 11.20 13.1927
2019-04-16 2019-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 442,767 18,450 4.35 35,944 6.94 12.2400
2019-01-29 2018-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 424,317 -16,615 -3.77 33,610 -3.14 12.5053
2018-10-24 2018-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 440,932 24,550 5.90 34,701 5.24 11.7175
2018-07-30 2018-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 416,382 16,865 4.22 32,973 3.26 11.6563
2018-04-18 2018-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 399,517 2,850 0.72 31,933 -1.31 11.4489
2018-01-26 2017-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 396,667 40,665 11.42 32,356 10.89 11.6768
2017-10-27 2017-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 356,002 26,410 8.01 29,178 8.18 11.2194
2017-07-24 2017-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 329,592 16,560 5.29 26,971 6.26 10.9015
2017-04-20 2017-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 313,032 58,080 22.78 25,381 23.22 10.4682
2017-01-24 2016-12-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 254,952 6,224 2.50 20,598 -1.58 9.1024
2016-10-21 2016-09-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 248,728 7,493 3.11 20,928 2.91 9.2603
2016-07-26 2016-06-30 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 241,235 8,271 3.55 20,336 5.42 9.2923
2016-04-25 2016-03-31 13F VANGUARD BD INDEX FD TOTAL BND MRKT 921937835 232,964 90,802 63.87 19,291 68.03 8.9527
2016-01-28 2015-12-31 13F Vanguard Total Bond Market ETF TOTAL BND MRKT 921937835 142,162 34 0.02 11,481 -1.40 6.5077
2015-10-23 2015-09-30 13F Vanguard Total Bond Market ETF Common Stock 921937835 142,128 24 0.02 11,644 0.84 6.8776
2015-07-28 2015-06-30 13F Vanguard Total Bond Market ETF Common Stock 921937835 142,104 15,985 12.67 11,547 9.81 6.5065
2015-05-06 2015-03-31 13F Vanguard Total Bond Market ETF Common Stock 921937835 126,119 19,712 18.53 10,515 19.97 6.1056
2015-02-17 2014-12-31 13F Vanguard Total Bond Market ETF Common Stock 921937835 106,407 106,407 8,765 5.3607
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.