Compare fund portfolios
See how two funds' portfolios overlap. Enter two tickers:
ISTB vs FSSWX
Shared holdings
106
ISTB covered by FSSWX
33.79%
FSSWX covered by ISTB
33.79%
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.
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% |
FSSWX (Feb. 28, 2026)
| Security | Weight | |
|---|---|---|
| US TREASURY N/B | 4.34% | |
| US TREASURY N/B | 4.00% | |
| US TREASURY N/B | 2.75% | |
| US TREASURY N/B | 2.55% | |
| US TREASURY N/B | 2.48% | |
| US TREASURY N/B | 2.06% | |
| US TREASURY N/B | 1.89% | |
| US TREASURY N/B | 1.71% | |
| US TREASURY N/B | 1.69% | |
| US TREASURY N/B | 1.65% | |
| US TREASURY N/B | 1.46% | |
| US TREASURY N/B | 1.45% | |
| US TREASURY N/B | 1.44% | |
| US TREASURY N/B | 1.43% | |
| US TREASURY N/B | 1.42% | |
| US TREASURY N/B | 1.42% | |
| US TREASURY N/B | 1.42% | |
| US TREASURY N/B | 1.42% | |
| US TREASURY N/B | 1.41% | |
| US TREASURY N/B | 1.41% | |
| US TREASURY N/B | 1.39% | |
| US TREASURY N/B | 1.38% | |
| US TREASURY N/B | 1.38% | |
| US TREASURY N/B | 1.38% | |
| US TREASURY N/B | 1.33% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.32% | |
| US TREASURY N/B | 1.29% | |
| US TREASURY N/B | 1.29% | |
| US TREASURY N/B | 1.25% | |
| US TREASURY N/B | 1.25% | |
| US TREASURY N/B | 1.25% | |
| US TREASURY N/B | 1.23% | |
| US TREASURY N/B | 1.22% | |
| US TREASURY N/B | 1.22% | |
| US TREASURY N/B | 1.22% | |
| US TREASURY N/B | 1.22% | |
| US TREASURY N/B | 1.19% | |
| US TREASURY N/B | 1.18% | |
| US TREASURY N/B | 1.17% | |
| US TREASURY N/B | 1.17% | |
| US TREASURY N/B | 1.09% | |
| US TREASURY N/B | 1.04% | |
| US TREASURY N/B | 1.01% | |
| US TREASURY N/B | 1.01% | |
| US TREASURY N/B | 0.99% |
Machine-readable: JSON · Markdown. Programmatic access via the agent surface.