WIISX Fees and Costs — William Blair International Small Cap Growth Fund, Class R6
Data updated: 2026-08-14
The net expense ratio is 1.05%: a 1.00% management fee plus 0.23% other expenses, less a 0.18% fee waiver. There are no sales loads or redemption fees. In fiscal 2025 the fund paid $183K in broker commissions, 0.1164% of average net assets, and portfolio turnover was 69%.
WIISX Fees and Expenses
Annual operating expenses and sales charges of WIISX. Prospectus, as of December 31, 2025.
| Annual operating expenses | |
|---|---|
| Management fee | 1.00% |
| 12b-1 fee | 0.00% |
| Other expenses | 0.23% |
| Gross expense ratio | 1.23% |
| Fee waiver | −0.18% |
| Net expense ratio | 1.05% |
| Sales charges | |
|---|---|
| Max front load | 0.00% |
| Max deferred load | — |
| Redemption fee | 0.00% |
| Expense limitation in place (N-CEN) | Yes |
| Fees waived or reduced during the year | Yes |
| Waived fees subject to recoupment | No |
WIISX Costs Over Time
On $10,000 invested in WIISX, assuming 5% a year before costs, total costs come to $727 over 5 years, cutting the return by 1.22% a year. Illustration, not a forecast: it assumes today's net expense ratio throughout (a fee waiver may end).
| $10,000 invested | Sell after 1 year | Sell after 3 years | Sell after 5 years |
|---|---|---|---|
| Value before costs | $10,500 | $11,576 | $12,763 |
| Fund expenses (net expense ratio 1.05%) | $110 | $343 | $594 |
| Trading costs (broker commissions) | $12 | $38 | $66 |
| Lost growth on money paid in costs | $0 | $19 | $67 |
| Total costs | $122 | $400 | $727 |
| Value after costs | $10,378 | $11,176 | $12,036 |
| Impact on return, per year | 1.22% | 1.22% | 1.22% |
WIISX Trading Costs
Brokerage costs reported on SEC Form N-CEN for the fiscal year ending December 31, 2025.
- Explicit cost rate (commissions ÷ average net assets): 0.1164%
- Total broker commissions: $183K
- Bought from dealers (principal trades, not a cost): $593.9M
- Portfolio turnover (prospectus): 69%
- Securities lending: none during the year
WIISX Agency Brokers
Commissions paid.
| Broker | Amount | Share |
|---|---|---|
| BofA Securities, Inc. | $27K | 18.25% |
| Morgan Stanley & Co. LLC | $25K | 17.44% |
| J.P. Morgan Securities LLC | $20K | 13.40% |
| UBS Securities LLC | $15K | 10.26% |
| Nomura Securities International, Inc. | $13K | 9.17% |
| Carnegie, Inc. | $11K | 7.86% |
| Jefferies LLC | $11K | 7.39% |
| CLSA Americas, LLC | $10K | 6.77% |
| SG Americas Securities, LLC | $8K | 5.76% |
| Goldman Sachs & Co. LLC | $5K | 3.71% |
WIISX Dealer Counterparties
Securities bought directly from dealers (principal trades).
| Broker | Amount | Share |
|---|---|---|
| State Street Bank and Trust Company | $593.0M | 99.86% |
| Berenberg Capital Markets LLC | $428K | 0.07% |
| Morgan Stanley & Co. LLC | $188K | 0.03% |
| Jefferies LLC | $126K | 0.02% |
| Goldman Sachs & Co. LLC | $114K | 0.02% |
William Blair International Small Cap Growth Fund Share Classes
Net expense ratio and maximum front-end load of each share class, cheapest first.
| Ticker | Class | Net expense ratio | Front load |
|---|---|---|---|
| WIISX | Class R6 | 1.05% | none |
| WISIX | Class I | 1.10% | none |
| WISNX | Class N | 1.35% | none |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.