Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities ETF
US ˙ NasdaqGM ˙ US9220208055

SecurityVTIP / Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities ETF
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership289,862 shares
Latest Disclosed Value $ 14,478,607
Citadel Advisors Llc ownership in VTIP / Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities ETF

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 289,862 shares of Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities ETF (US:VTIP) valued at $14,478,607 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 0 shares of Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities ETF. The current value of the position is $14,623,538 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (VTIP) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

VTIP / Vanguard Malvern Funds - Vanguard Short-Term Inflation-Protected Securities 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)
2026-05-15 2026-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 289,862 289,862 14,479 0.0021
2025-11-14 2025-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 0 -131,311 -100.00 0 -100.00
2025-08-14 2025-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 131,311 -114,129 -46.50 6,601 -46.10 0.0011
2025-05-15 2025-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 245,440 230,716 1,566.94 12,247 1,620.08 0.0023
2025-02-14 2024-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 14,724 -8,754 -37.29 713 -38.46 0.0001
2024-11-14 2024-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 23,478 -18,842 -44.52 1,158 -43.67 0.0002
2024-08-14 2024-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 42,320 40,733 2,566.67 2,054 2,602.63 0.0004
2024-05-15 2024-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 1,587 -33,041 -95.42 76 -95.38 0.0000
2024-02-14 2023-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 34,628 -56,549 -62.02 1,644 -61.86 0.0003
2023-11-14 2023-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 91,177 48,993 116.14 4,311 115.50 0.0009
2023-08-14 2023-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 42,184 -65,584 -60.86 2,000 -61.19 0.0004
2023-05-15 2023-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 107,768 -90,645 -45.69 5,153 -44.39 0.0011
2023-02-14 2022-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 198,413 198,413 9,268 0.0022
2022-08-15 2022-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 0 -4,826 -100.00 0 -100.00
2022-05-16 2022-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 4,826 -1,194,111 -99.60 247 -99.60 0.0001
2022-02-14 2021-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 1,198,937 1,198,937 61,625 0.0126
2022-03-11 2021-09-30 13F/A-1 VANGUARD MALVERN FDS STRM INFPROIDX 922020805 0 -338,231 -100.00 0 -100.00
2021-11-15 2021-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 0 -338,231 0
2021-08-16 2021-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 338,231 272,064 411.18 17,727 419.85 0.0040
2021-05-21 2021-03-31 13F/A-1 VANGUARD MALVERN FDS STRM INFPROIDX 922020805 66,167 66,167 3,410 0.0008
2021-05-17 2021-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX 922020805 66,167 66,167 3,410 0.0008
2020-08-14 2020-06-30 13F VANGUARD MALVERN FDS Cmn 922020805 0 -94,717 -100.00 0 -100.00
2020-05-15 2020-03-31 13F VANGUARD MALVERN FDS Cmn 922020805 94,717 84,446 822.18 4,615 812.06 0.0021
2020-02-14 2019-12-31 13F VANGUARD MALVERN FDS Cmn 922020805 10,271 10,271 506 0.0002
2019-05-15 2019-03-31 13F VANGUARD MALVERN FDS Cmn 922020805 0 -43,768 -100.00 0 -100.00
2019-02-14 2018-12-31 13F VANGUARD MALVERN FDS Cmn 922020805 43,768 43,768 2,097 0.0011
2018-11-13 2018-09-30 13F VANGUARD MALVERN FDS Cmn 922020805 0 -19,477 -100.00 0 -100.00
2018-08-14 2018-06-30 13F/A-1 VANGUARD MALVERN FDS Cmn 922020805 19,477 19,477 951 0.0005
2018-08-10 2018-06-30 13F VANGUARD MALVERN FDS Cmn 922020805 19,477 19,477 951
2017-05-12 2017-03-31 13F VANGUARD MALVERN FDS Cmn 922020805 0 -9,236 -100.00 0 -100.00
2017-02-10 2016-12-31 13F VANGUARD MALVERN FDS Cmn 922020805 9,236 -880 -8.70 454 -6.97 0.0005
2015-06-26 2014-12-31 13F/A-2 VANGUARD SHORT-TERM TIPS Cmn 922020805 10,116 10,116 488 0.0027
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
(%)
2026-05-15 2026-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 13,200 -70.99 653 -71.69 n/a n/a n/a
2025-11-14 2025-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 45,500 -12.67 2,304 -12.07 n/a n/a n/a
2025-08-14 2025-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 52,100 247.33 2,619 250.13 n/a n/a n/a
2025-05-15 2025-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 15,000 212.50 748 222.41 n/a n/a n/a
2025-02-14 2024-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 4,800 -65.47 232 -66.13 n/a n/a n/a
2024-11-14 2024-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 13,900 -4.14 685 -2.56 n/a n/a n/a
2024-08-14 2024-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 14,500 145.76 704 149.29 n/a n/a n/a
2024-05-15 2024-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 5,900 -3.28 283 -2.42 n/a n/a n/a
2024-02-14 2023-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 6,100 -26.51 290 -26.28 n/a n/a n/a
2023-11-14 2023-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 8,300 -30.83 392 -31.11 n/a n/a n/a
2023-08-14 2023-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 12,000 -57.45 569 -57.79 n/a n/a n/a
2023-05-15 2023-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 28,200 -25.98 1,349 -24.23 n/a n/a n/a
2023-02-14 2022-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 38,100 -63.92 1,780 -64.98 n/a n/a n/a
2022-11-14 2022-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 105,600 -33.67 5,080 -36.33 n/a n/a n/a
2022-08-15 2022-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 159,200 39.28 7,979 36.32 n/a n/a n/a
2022-05-16 2022-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 114,300 580.36 5,853 577.43 n/a n/a n/a
2022-02-14 2021-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Call 16,800 34.40 864 31.51 n/a n/a n/a
2021-11-15 2021-09-30 13F VANGUARD MALVERN FDS Cmn Call 12,500 657 n/a n/a n/a
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
(%)
2025-05-15 2025-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 100 -95.45 5 -96.30 n/a n/a n/a
2024-11-14 2024-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 2,200 15.79 108 17.39 n/a n/a n/a
2024-08-14 2024-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 1,900 26.67 92 29.58 n/a n/a n/a
2024-05-15 2024-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 1,500 114.29 72 115.15 n/a n/a n/a
2024-02-14 2023-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 700 -36.36 33 -36.54 n/a n/a n/a
2023-11-14 2023-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 1,100 -84.29 52 -84.29 n/a n/a n/a
2023-08-14 2023-06-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 7,000 11.11 332 9.97 n/a n/a n/a
2023-05-15 2023-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 6,300 -11.27 301 -9.06 n/a n/a n/a
2023-02-14 2022-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 7,100 33.96 332 29.80 n/a n/a n/a
2022-11-14 2022-09-30 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 5,300 255 n/a n/a n/a
2022-05-16 2022-03-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F VANGUARD MALVERN FDS STRM INFPROIDX Put 22,500 1,157 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.