Compare fund portfolios
See how two funds' portfolios overlap. Enter two tickers:
VFSIX vs ISTB
Shared holdings
1379
VFSIX covered by ISTB
15.77%
ISTB covered by VFSIX
15.77%
Coverage = share of one portfolio's weight reproduced by the other (overlapping positions, min weight). Top 50 positions per side shown; = held by both — hover a shared position to highlight it in both columns.
VFSIX (Jan. 31, 2026)
| Security | Weight | |
|---|---|---|
| US TREASURY N/B | 0.79% | |
| US TREASURY N/B | 0.71% | |
| Vanguard Market Liquidity Fund | 0.67% | |
| US TREASURY N/B | 0.61% | |
| ABBVIE INC | 0.59% | |
| BOEING CO | 0.57% | |
| US TREASURY N/B | 0.57% | |
| US TREASURY N/B | 0.55% | |
| US TREASURY N/B | 0.54% | |
| US TREASURY N/B | 0.52% | |
| US TREASURY N/B | 0.50% | |
| US TREASURY N/B | 0.49% | |
| US TREASURY N/B | 0.48% | |
| US TREASURY N/B | 0.48% | |
| PFIZER INVSTMNT | 0.44% | |
| MARS INC SR UNSECURED 144A 03/28 4.6 | 0.38% | |
| UNITED MEXICAN | 0.36% | |
| META PLATFORMS | 0.35% | |
| BAT INTL FINANCE | 0.34% | |
| MARS INC | 0.32% | |
| NETFLIX INC | 0.32% | |
| Mexico Government International Bonds | 0.31% | |
| LOWE'S COS INC | 0.30% | |
| AMGEN INC | 0.29% | |
| REGIONS FINL | 0.28% | |
| ORACLE CORP | 0.28% | |
| MORGAN STANLEY | 0.27% | |
| BAT CAPITAL CORP | 0.27% | |
| KSA SUKUK LTD | 0.27% | |
| UNITED MEXICAN | 0.26% | |
| COF V5.463 07/26/30 | 0.26% | |
| US TREASURY N/B | 0.26% | |
| The Goldman Sachs Group, Inc. 4.153 10/21/2029 | 0.26% | |
| AT&T INC | 0.25% | |
| UBS GROUP | 0.25% | |
| AMEREN CORP | 0.25% | |
| PNC FINANCIAL | 0.25% | |
| SAUDI INTERNATIONAL BOND 5.125000% 01/13/2028 | 0.25% | |
| US TREASURY N/B | 0.24% | |
| ROYAL BK CANADA | 0.23% | |
| NORTHROP GRUMMAN | 0.23% | |
| GOLDMAN SACHS GP | 0.23% | |
| GOLDMAN SACHS GP | 0.23% | |
| SPRINT CAP CORP | 0.23% | |
| GOLDMAN SACHS GP | 0.23% | |
| US TREASURY N/B | 0.23% | |
| FIFTH THIRD BANC | 0.23% | |
| US TREASURY N/B | 0.22% | |
| ABBVIE INC | 0.22% | |
| T-MOBILE USA INC | 0.22% |
ISTB (Jan. 31, 2026)
| Security | Weight | |
|---|---|---|
| BlackRock Cash Funds: Treasury, SL Agency Shares | 1.31% | |
| US TREASURY N/B | 1.12% | |
| US TREASURY N/B | 1.00% | |
| US TREASURY N/B | 0.98% | |
| US TREASURY N/B | 0.92% | |
| US TREASURY N/B | 0.87% | |
| US TREASURY N/B | 0.86% | |
| US TREASURY N/B | 0.83% | |
| US TREASURY N/B | 0.81% | |
| US TREASURY N/B | 0.73% | |
| US TREASURY N/B | 0.71% | |
| US TREASURY N/B | 0.71% | |
| US TREASURY N/B | 0.69% | |
| US TREASURY N/B | 0.68% | |
| US TREASURY N/B | 0.66% | |
| US TREASURY N/B | 0.64% | |
| US TREASURY N/B | 0.64% | |
| US TREASURY N/B | 0.63% | |
| US TREASURY N/B | 0.61% | |
| US TREASURY N/B | 0.60% | |
| US TREASURY N/B | 0.60% | |
| US TREASURY N/B | 0.59% | |
| US TREASURY N/B | 0.58% | |
| US TREASURY N/B | 0.56% | |
| US TREASURY N/B | 0.55% | |
| US TREASURY N/B | 0.55% | |
| US TREASURY N/B | 0.54% | |
| US TREASURY N/B | 0.54% | |
| US TREASURY N/B | 0.53% | |
| US TREASURY N/B | 0.53% | |
| US TREASURY N/B | 0.52% | |
| US TREASURY N/B | 0.51% | |
| US TREASURY N/B | 0.51% | |
| US TREASURY N/B | 0.51% | |
| US TREASURY N/B | 0.50% | |
| US TREASURY N/B | 0.50% | |
| US TREASURY N/B | 0.49% | |
| US TREASURY N/B | 0.48% | |
| US TREASURY N/B | 0.47% | |
| US TREASURY N/B | 0.47% | |
| US TREASURY N/B | 0.46% | |
| US TREASURY N/B | 0.46% | |
| US TREASURY N/B | 0.46% | |
| US TREASURY N/B | 0.45% | |
| US TREASURY N/B | 0.45% | |
| US TREASURY N/B | 0.45% | |
| US TREASURY N/B | 0.45% | |
| US TREASURY N/B | 0.44% | |
| US TREASURY N/B | 0.44% | |
| US TREASURY N/B | 0.43% |
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