FundWatcher
VIPSX
VANGUARD INFLATION-PROTECTED SECURITIES FUND
VANGUARD BOND INDEX FUNDS

Portfolio moves

Net position changes between two of this fund's N-PORT snapshots. These are differences between point-in-time reports — not a trade log — and share counts can be affected by splits and other corporate actions.

Dec 31, 2025 → Mar 31, 2026

Expand a category to see the positions behind it, ranked by weight.

Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
US TREASURY N/B 0 340,316,300 340,316,300 1.21% $335.96M
U.S. Treasury Inflation-Indexed Notes 0 319,247,700 319,247,700 1.14% $315.72M
UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56 0 189,000,000 189,000,000 0.63% $176.02M
US TREASURY N/B 0 113,000,000 113,000,000 0.40% $110.23M
US TREASURY N/B 0 25,629,100 25,629,100 0.09% $26.30M
US TREASURY N/B 0 25,646,800 25,646,800 0.09% $25.92M
US TREASURY N/B 0 25,670,400 25,670,400 0.09% $25.60M
US TREASURY N/B 0 25,639,600 25,639,600 0.09% $24.98M
US TREASURY N/B 0 24,371,400 24,371,400 0.09% $24.88M
US TREASURY N/B 0 23,071,900 23,071,900 0.08% $22.65M
US TREASURY N/B 0 21,176,100 21,176,100 0.08% $21.18M
US TREASURY N/B 0 24,260,100 24,260,100 0.08% $21.05M
US TREASURY N/B 0 23,733,600 23,733,600 0.07% $20.58M
US TREASURY N/B 0 21,153,900 21,153,900 0.07% $20.35M
US TREASURY N/B 0 21,701,200 21,701,200 0.07% $20.30M
US TREASURY N/B 0 21,137,900 21,137,900 0.07% $20.14M
US TREASURY N/B 0 22,326,000 22,326,000 0.07% $19.80M
US TREASURY N/B 0 22,135,800 22,135,800 0.07% $19.74M
US TREASURY N/B 0 22,506,800 22,506,800 0.07% $19.73M
US TREASURY N/B 0 20,829,900 20,829,900 0.07% $19.27M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27 198,047,400 0 -198,047,400 0.00% -$322.34M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
U.S. Treasury Inflation-Protected Indexed Notes 1,038,750,600 1,045,285,000 6,534,400 3.95% $3.79M
U.S. Treasury Inflation-Protected Indexed Notes 985,500,000 989,008,400 3,508,400 3.71% $2.63M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032 864,000,000 865,351,000 1,351,000 3.29% $4.79M
U.S. Treasury Notes 795,799,300 835,799,300 40,000,000 3.25% $46.30M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 769,000,000 790,732,100 21,732,100 3.13% $27.27M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 503,440,000 670,440,000 167,000,000 3.12% $220.72M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/32 779,500,000 796,017,400 16,517,400 3.10% $22.57M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 727,150,000 750,850,000 23,700,000 2.94% $30.95M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 552,660,000 552,760,000 100,000 2.60% $6.36M
U.S. Treasury Notes 0.125%, Due 1/15/2030 575,865,600 593,568,100 17,702,500 2.59% $26.59M
U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 423,830,000 438,830,000 15,000,000 2.02% $22.93M
US TREASURY N/B 20,000,000 537,000,000 517,000,000 1.93% $514.90M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045 341,500,000 467,800,000 126,300,000 1.67% $119.23M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 183,670,200 196,170,200 12,500,000 1.11% $20.72M
U.S. Treasury Inflation-Protected Indexed Bonds 313,117,800 319,343,400 6,225,600 1.10% -$915.93K
Vanguard Market Liquidity Fund 558,890 2,665,709 2,106,819 0.96% $210.66M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053 296,648,600 306,048,600 9,400,000 0.92% $3.34M
U.S. Treasury Inflation-Protected Indexed Bonds 1,000,000 176,450,000 175,450,000 0.91% $251.88M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 02/15/2052 312,825,500 331,325,500 18,500,000 0.72% $7.36M
U.S. Treasury Inflation-Protected Indexed Bonds 238,848,300 243,298,300 4,450,000 0.58% -$33.28K
US ULTRA BOND CBT Sep25 2,869,210,936 2,975,717,444 106,506,508 0.01% $2.69M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034 938,150,000 932,823,700 -5,326,300 3.54% -$5.98M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33 877,400,000 876,941,100 -458,900 3.31% $985.96K
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033 877,771,500 870,875,300 -6,896,200 3.30% -$5.04M
U.S. Treasury Notes 883,456,800 873,456,800 -10,000,000 3.25% -$7.14M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 708,551,500 693,551,500 -15,000,000 2.83% -$11.89M
U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 632,192,100 624,192,100 -8,000,000 2.71% -$4.59M
U.S. Treasury Notes 1,104,000,000 625,501,400 -478,498,600 2.27% -$486.47M
U.S. Treasury Inflation-Linked Notes 750,400,000 608,336,100 -142,063,900 2.18% -$138.15M
U.S. TREASURY INFLATION-PROTECTED SECURITIES .25% 07/15/29 507,000,000 444,000,000 -63,000,000 1.98% -$72.93M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 546,300,000 407,300,000 -139,000,000 1.95% -$177.37M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042 463,976,600 267,439,100 -196,537,500 1.07% -$223.96M
U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054 311,211,800 303,247,800 -7,964,000 1.02% -$13.74M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46 175,752,000 175,552,000 -200,000 0.64% -$3.39M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043 224,255,100 165,305,800 -58,949,300 0.62% -$64.11M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050 244,803,900 239,303,900 -5,500,000 0.62% -$7.09M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047 219,600,000 163,221,300 -56,378,700 0.56% -$57.69M
U.S. Treasury Inflation Linked Bonds 151,000,000 150,400,000 -600,000 0.50% -$3.09M
US TREASURY N/B 146,650,000 85,650,000 -61,000,000 0.32% -$64.56M
US TREASURY N/B 60,000,000 40,000,000 -20,000,000 0.15% -$20.89M
US TREASURY N/B 70,000,000 40,000,000 -30,000,000 0.14% -$30.31M
US TREASURY N/B 109,000,000 25,532,400 -83,467,600 0.09% -$83.59M
US TREASURY N/B 20,000,000 10,000,000 -10,000,000 0.04% -$10.28M
US TREASURY N/B 75,000,000 9,412,400 -65,587,600 0.03% -$68.42M
US TREASURY N/B 92,000,000 9,413,400 -82,586,600 0.03% -$83.90M
U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27 471,138,525 25 -471,138,500 0.00% -$627.27M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
U.S. Treasury Inflation-Protected Indexed Notes 842,067,000 842,067,000 0 3.18% $3.78M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 735,000,000 735,000,000 0 2.95% $5.21M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 698,632,500 698,632,500 0 2.88% $8.98M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 661,175,300 661,175,300 0 2.80% $5.01M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 179,241,900 179,241,900 0 1.38% -$11.66K
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044 310,210,200 310,210,200 0 1.29% -$5.31M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 153,575,200 153,575,200 0 1.17% $253.45K
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 193,775,600 193,775,600 0 1.10% $1.71M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40 109,115,500 109,115,500 0 0.58% -$2.00M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48 162,000,000 162,000,000 0 0.55% -$2.97M
U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 71,028,600 71,028,600 0 0.52% -$328.20K
US TREASURY N/B 50,000,000 50,000,000 0 0.18% -$607.42K

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