Registry rank 2483 · Portfolio as of 2026-03-31
Small Cap Index Fund
NSIDX
Filed fees in dollars
SEC-convention illustration
Computed from SEC filings
Assumptions for each dollar figure: $100,000 starting amount · 5.0% annual return · annual compounding · fees deducted annually · 0.01% computed index-control baseline. Methodology.
| Share class and filing | 10 years | 20 years | 30 years |
|---|---|---|---|
| NSIDX0.10% · SEC expense filing · as of 2025-03-31 | $1,390 | $4,504 | $10,946 |
Real trailing windows
Computed on licensed market-return history
Trailing windows use IWM adjusted-close total-return history through 2026-07-29 and the same filed index-control fee baseline as the convention table. Methodology.
| Share class and filing | 10 years | 20 years | 30 years |
|---|---|---|---|
| NSIDXFiled fee as of 2025-03-31 | $2,203Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 10.52% annualized | $8,912Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 8.84% annualized | Proxy history begins 2000 — no full 30-year window |
Index-control tracking difference
Annualized fund NAV return minus the matched proxy return. Positive means the fund NAV return was higher over that window.
| Fund NAV class | 10 years | 20 years | 30 years |
|---|---|---|---|
| NSIDX | no exact shared fund NAV/proxy anchors for a full 10-year window | no exact shared fund NAV/proxy anchors for a full 20-year window | no exact shared fund NAV/proxy anchors for a full 30-year window |
These figures are illustrations, not predictions or personalized advice. Returns and fees can differ. Read the research disclaimer.
Change the illustration
Computed from SEC filings
Assumptions for the dollar figures below: $100,000 starting amount; 5.0% annual return; 20 years; annual compounding; fees deducted annually; 0.01% computed index-control baseline. NSIDX SEC expense filing, as of 2025-03-31. Methodology.
| Result | Amount |
|---|---|
| Ending value at baseline | $264,825 |
| Ending value at filed expense ratio | $260,321 |
| Difference attributed to fee drag | $4,504 |
This is an illustration, not a prediction or personalized advice. Returns and fees can differ. Read the research disclaimer.
Largest active differences vs IWM
The bars are labeled and repeated in the table; color is not the only signal. Linked company names open Buy Like Buffett’s company record; Sensible Investor does not score stocks.
| Holding | Fund | IWM | Difference |
|---|---|---|---|
| Bread Financial Holdings, Inc. | 0.12% | 0.06% | +0.06% |
| Cushman & Wakefield Ltd. | 0.10% | 0.06% | +0.04% |
| Moelis & Co. | 0.14% | 0.12% | +0.03% |
| Pitney Bowes, Inc. | 0.06% | 0.04% | +0.02% |
| SiriusPoint Ltd. | 0.07% | 0.06% | +0.02% |
| Preferred Bank | 0.04% | 0.02% | +0.01% |
| Liberty Latin America Ltd. | 0.05% | 0.04% | +0.01% |
| Liberty Latin America Ltd. | 0.00% | 0.01% | -0.01% |
| Douglas Emmett, Inc. | 0.05% | 0.04% | +0.01% |
| Cartesian Therapeutics, Inc. | 0.01% | 0.00% | +0.01% |
Source and verification
SEC N-PORT filing · filed 2026-05-28 · period 2026-03-31
SEC expense filing · period 2025-03-31
Cite these figures
Each snippet includes the figure’s source-event date and immutable verification URL.
Best-fit active share
Sensible Investor, “Small Cap Index Fund — best-fit active share,” 0.9% versus IWM, fund portfolio as of 2026-03-31. https://sensible-investor.com/registry/nsidx/as-of/363649da-fcfb-4007-87ef-de06de7710ca
NSIDX filed expense ratio
Sensible Investor, “Small Cap Index Fund — filed expense ratio,” 0.10% for NSIDX, as of 2025-03-31. https://sensible-investor.com/registry/nsidx/as-of/363649da-fcfb-4007-87ef-de06de7710ca