Vanguard Total Bond Market Index Fund VTBSX Portfolio

Institutional Select Shares VTBSX
$9.51 -0.01 (-0.10%)
At close: Aug 27, 2026 · 4:00 PM EDT
Vanguard Total Bond Market Index Fund last reported its portfolio on Jul 31, 2026. Everything on this page is drawn from that filing.

Portfolio Snapshot

10,042 positions reported

Vanguard Total Bond Market Index Fund reported 10,042 positions worth $400.78B as of Jul 31, 2026. Its largest position is Federal National Mortgage Assn. at 1.43% of the portfolio.

Holdings
10,042
positions on file
Portfolio Value
$400.78B
total market value
Top 10 Weight
10.5%
of the portfolio
Report Date
Jul 31, 2026
quarterly N-PORT filing

Sector

12 buckets
49%
Communication Services

Note. “Other / Unclassified” covers bonds, cash and foreign listings with no equity sector assigned. A large share of it is normal, particularly for a bond fund.

See this breakdown over time

Portfolio as of Jul 31, 2026.

Geography

48 buckets
79.81%
United States
See this breakdown over time

Portfolio as of Jul 31, 2026.

Asset Class

2 buckets
98.65%
Fixed Income
See this breakdown over time

Portfolio as of Jul 31, 2026.

Security Type

7 buckets
47.84%
US Treasury
See this breakdown over time

Portfolio as of Jul 31, 2026.

Holdings

10,042 Positions

As of Jul 31, 2026
Top 10 10.5%
# Holding Ticker Weight Market Value Sector Country Asset Class
1 Federal National Mortgage Assn. — 1.43% $5.68B Other Unknown Fixed Income
2 Vanguard Market Liquidity Fund — 1.36% $5.41B Other Unknown Fund & Cash Equivalents
3 Federal Home Loan Mortgage Corp. — 1.14% $4.55B Other United States Fixed Income
4 Federal National Mortgage Assn. — 1.05% $4.16B Other Unknown Fixed Income
5 Federal Home Loan Mortgage Corp. — 0.99% $3.95B Other United States Fixed Income
6 Federal National Mortgage Assn. — 0.98% $3.89B Other Unknown Fixed Income
7 Federal National Mortgage Assn. — 0.96% $3.80B Other Unknown Fixed Income
8 Government National Mortgage Assn. — 0.91% $3.63B Other Unknown Fixed Income
9 Government National Mortgage Assn. — 0.85% $3.39B Other Unknown Fixed Income
10 Federal Home Loan Mortgage Corp. — 0.84% $3.36B Other United States Fixed Income
11 Federal Home Loan Mortgage Corp. — 0.84% $3.33B Other United States Fixed Income
12 Federal National Mortgage Assn. — 0.76% $3.02B Other Unknown Fixed Income
13 Federal National Mortgage Assn. — 0.7% $2.80B Other Unknown Fixed Income
14 Federal Home Loan Mortgage Corp. — 0.69% $2.76B Other United States Fixed Income
15 Government National Mortgage Assn. — 0.51% $2.04B Other Unknown Fixed Income
10,027 more holdings Create a free account to keep reading this fund's full portfolio.
Showing 15 of 10,042 holdings Source:
See these positions over time

Portfolio as of Jul 31, 2026.