C000155940 Performance — iShares Russell Mid-Cap Index Fund, Institutional Class
Data updated: 2026-10-14
C000155940 returned +14.51% year to date and +18.65% over one year to Jul 2026. Annualised returns are +14.67% over 3 years and +8.15% over 5 years. Against its US Mid-Cap Blend category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $151, against $144 for the category, and to $119 over one year, against $119. Volatility over the past three years was 14.95% a year. In the 12 months to Jul 2026 the fund took in a net $133.2M, and assets reached $2.57B.
C000155940 Growth of $100
What $100 invested in iShares Russell Mid-Cap Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Blend category average over the same months.
| Period | C000155940 | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $119 | $119 |
| 3 years (Aug 2023 – Jul 2026) | $151 | $144 |
| 5 years (Aug 2021 – Jul 2026) | $148 | $145 |
| Since data start (Aug 2019 – Jul 2026) | $215 | $204 |
C000155940 Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +14.51% |
| 1 year | +18.65% |
| 3 years (annualised) | +14.67% |
| 5 years (annualised) | +8.15% |
C000155940 Annual Returns
Calendar-year total returns of iShares Russell Mid-Cap Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +14.51% |
| 2025 | +10.52% |
| 2024 | +15.19% |
| 2023 | +17.17% |
| 2022 | −17.24% |
| 2021 | +22.51% |
| 2020 | +17.09% |
| 2019 (Aug–Dec) | +5.98% |
C000155940 Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +3.0% | +3.8% | −5.3% | +7.3% | +2.9% | +3.1% | −0.7% | — | — | — | — | — |
| 2025 | +4.2% | −2.9% | −4.7% | −1.1% | +5.7% | +3.8% | +1.8% | +2.5% | +0.9% | −0.9% | +1.3% | −0.3% |
| 2024 | −1.5% | +5.6% | +4.4% | −5.4% | +2.9% | −0.7% | +4.7% | +2.0% | +2.2% | −0.6% | +8.8% | −7.0% |
| 2023 | +8.2% | −2.4% | −1.5% | −0.6% | −2.7% | +8.3% | +3.9% | −3.5% | −5.1% | −5.0% | +10.2% | +7.8% |
| 2022 | −7.4% | −0.7% | +2.6% | −7.7% | +0.1% | −9.9% | +9.8% | −3.2% | −9.2% | +8.9% | +6.0% | −5.4% |
| 2021 | −0.3% | +5.6% | +2.8% | +5.0% | +0.8% | +1.4% | +0.8% | +2.5% | −4.1% | +5.9% | −3.4% | +4.1% |
| 2020 | −0.8% | −8.7% | −19.3% | +14.2% | +7.0% | +1.8% | +5.8% | +3.5% | −2.0% | +0.7% | +13.8% | +4.7% |
| 2019 | — | — | — | — | — | — | — | −2.9% | +2.0% | +1.0% | +3.6% | +2.3% |
C000155940 Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 14.95%
- 3-year Sharpe ratio: 0.68 (vs 4.5% risk-free rate)
- Best month: +10.22% (Nov 2023)
- Worst month: −7.03% (Dec 2024)
C000155940 Fund Flows
Monthly money in and out of iShares Russell Mid-Cap Index Fund, from SEC Form N-PORT.
- 12-month net flow: $133.2M
- 12-month gross sales (incl. reinvestments): $793.9M
- Sales ÷ redemptions: 1.20×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $85.4M | $59.4M | $26.0M |
| Jun 2026 | $48.2M | $50.4M | −$2.2M |
| May 2026 | $91.7M | $56.4M | $35.3M |
| Apr 2026 | $51.8M | $46.5M | $5.3M |
| Mar 2026 | $52.9M | $42.9M | $10.0M |
| Feb 2026 | $55.1M | $49.8M | $5.4M |
| Jan 2026 | $80.2M | $82.8M | −$2.6M |
| Dec 2025 | $154.2M | $60.7M | $93.5M |
| Nov 2025 | $43.4M | $43.1M | $321K |
| Oct 2025 | $50.8M | $40.6M | $10.2M |
| Sep 2025 | $39.5M | $85.3M | −$45.7M |
| Aug 2025 | $40.7M | $43.0M | −$2.3M |
C000155940 Assets Under Management
Net assets of iShares Russell Mid-Cap Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $2.57B |
| 2026-04-30 | $2.39B |
| 2026-01-31 | $2.25B |
| 2025-10-31 | $2.17B |
| 2025-07-31 | $2.16B |
| 2025-04-30 | $1.96B |
| 2025-01-31 | $2.12B |
| 2024-10-31 | $2.01B |
| 2024-07-31 | $2.00B |
| 2024-04-30 | $1.88B |
| 2024-01-31 | $1.79B |
| 2023-10-31 | $1.51B |
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.