Vanguard Index Funds - Vanguard Small-Cap Growth ETF
US ˙ ARCA ˙ US9229085959

SecurityVBK / Vanguard Index Funds - Vanguard Small-Cap Growth ETF
InstitutionSei Investments Co
Latest Disclosed Ownership969,157 shares
Latest Disclosed Value $ 292,783,613
Sei Investments Co ownership in VBK / Vanguard Index Funds - Vanguard Small-Cap Growth ETF

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 969,157 shares of Vanguard Index Funds - Vanguard Small-Cap Growth ETF (US:VBK) valued at $292,792,021 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 949,929 shares of Vanguard Index Funds - Vanguard Small-Cap Growth ETF. This represents a change in shares of 2.02% during the quarter. The current value of the position is $343,362,634 USD.

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

VBK / Vanguard Index Funds - Vanguard Small-Cap Growth 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 INDEX FDS SML CP GRW ETF 922908595 969,157 19,228 2.02 292,784 3.56 0.2890
2025-11-13 2025-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 949,929 11,152 1.19 282,726 8.75 0.3040
2025-08-14 2025-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 938,777 18,001 1.95 259,981 12.15 0.3014
2025-05-14 2025-03-31 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 920,776 44,695 5.10 231,825 -5.50 0.2984
2025-05-13 2025-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 920,776 44,695 231,825 0.2521
2025-02-11 2024-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 876,081 2,508 0.29 245,326 5.04 0.3151
2024-11-12 2024-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 873,573 -9,579 -1.08 233,562 5.74 0.3033
2024-08-13 2024-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 883,152 56,416 6.82 220,873 2.47 0.3129
2024-05-07 2024-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 826,736 49,428 6.36 215,548 14.70 0.3158
2024-02-14 2023-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 777,308 13,995 1.83 187,929 14.95 0.3017
2023-11-14 2023-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 763,313 20,186 2.72 163,490 -4.25 0.2938
2023-08-11 2023-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 743,127 32,962 4.64 170,746 11.10 0.2978
2023-05-12 2023-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 710,165 41,050 6.13 153,686 14.54 0.2855
2023-02-10 2022-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 669,115 -3,293 -0.49 134,174 2.25 0.2982
2022-11-14 2022-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 672,408 40,425 6.40 131,222 5.17 0.2927
2022-08-15 2022-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 631,983 62,223 10.92 124,774 -11.23 0.2695
2022-05-13 2022-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 569,760 61,157 12.02 140,551 -2.08 0.2825
2022-02-14 2021-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 508,603 113,397 28.69 143,533 29.52 0.2693
2021-11-12 2021-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 395,206 18,320 4.86 110,817 1.51 0.2325
2021-08-06 2021-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 376,886 29,655 8.54 109,168 17.45 0.2421
2021-05-12 2021-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 347,231 -1 -0.00 92,952 0.00 0.2342
2021-02-08 2020-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 347,232 -332 -0.10 92,950 24.08 0.2403
2020-12-04 2020-09-30 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 347,564 1,857 0.54 74,909 8.42 0.2169
2020-11-06 2020-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 349,499 3,792 75,325 181,365.8523
2020-08-17 2020-06-30 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 345,707 101,292 41.44 69,094 87.75 0.2144
2020-08-11 2020-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 345,707 101,292 69,094 187,421.1529
2020-05-14 2020-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 244,415 -68,251 -21.83 36,801 -40.90 0.1352
2020-02-06 2019-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 312,666 2,435 0.78 62,269 10.36 0.1857
2019-11-12 2019-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 310,231 19,358 6.66 56,422 4.19 0.1443
2019-08-14 2019-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 290,873 20,367 7.53 54,153 11.39 0.1769
2019-05-15 2019-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 270,506 23,164 9.37 48,617 30.42 0.1633
2019-02-13 2018-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 247,342 -74,140 -23.06 37,278 -38.23 0.1327
2018-11-08 2018-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 321,482 -10,662 -3.21 60,346 3.35 0.2187
2018-08-03 2018-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 332,144 7,624 2.35 58,391 9.75 0.1985
2018-05-11 2018-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 324,520 69,632 27.32 53,206 29.77 0.2039
2018-02-08 2017-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 254,888 -5,086 -1.96 40,999 3.32 0.1424
2017-11-06 2017-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 259,974 80,819 45.11 39,682 51.99 0.1410
2017-07-31 2017-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 179,155 31,617 21.43 26,108 25.80 0.1041
2017-05-05 2017-03-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 147,538 31,114 26.72 20,754 33.90 0.0909
2017-02-02 2016-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 116,424 -21,200 -15.40 15,500 -14.53 0.0751
2016-11-04 2016-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 137,624 32,823 31.32 18,136 39.67 0.0921
2016-08-11 2016-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 104,801 19,954 23.52 12,985 28.60 0.0779
2016-05-10 2016-03-31 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 84,847 36,092 74.03 10,097 70.53 0.0628
2016-02-03 2015-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 48,755 -13,372 -21.52 5,921 -19.09 0.0361
2015-11-02 2015-09-30 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 62,127 3,490 5.95 7,318 -7.04 0.0672
2015-10-30 2015-09-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 62,127 7,318
2015-08-07 2015-06-30 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 58,637 14,155 31.82 7,872 34.31 0.0712
2015-08-04 2015-06-30 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 58,637 58,637 7,872 0.0712
2015-05-14 2015-03-31 13F/A-1 VANGUARD INDEX FDS SML CP GRW ETF 922908595 44,482 14,597 48.84 5,861 55.67 0.0509
2015-05-01 2015-03-31 13F VENTAS PUT 922908595 44,482 44,482 5,861 0.0509
2015-02-10 2014-12-31 13F VANGUARD INDEX FDS SML CP GRW ETF 922908595 29,885 29,885 3,765 0.0333
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
(%)
2015-05-01 2015-03-31 13F VENTAS PUT 44,482 5,861 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.