IMCB Performance — iShares Morningstar Mid-Cap ETF
Data updated: 2026-09-25
IMCB returned +17.94% year to date and +21.51% over one year to Jul 2026. Annualised returns are +15.67% over 3 years and +9.14% over 5 years. The fund beat its US Mid-Cap Blend category average: $100 invested three years ago grew to $155, against $144 for the category, and to $122 over one year, against $119. Volatility over the past three years was 14.74% a year. In the 12 months to Jul 2026 the fund took in a net $253.3M, and assets reached $1.66B.
IMCB Growth of $100
What $100 invested in iShares Morningstar Mid-Cap ETF 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 | IMCB | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $122 | $119 |
| 3 years (Aug 2023 – Jul 2026) | $155 | $144 |
| 5 years (Aug 2021 – Jul 2026) | $155 | $145 |
| Since data start (Aug 2019 – Jul 2026) | $218 | $204 |
IMCB Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +17.94% |
| 1 year | +21.51% |
| 3 years (annualised) | +15.67% |
| 5 years (annualised) | +9.14% |
IMCB Annual Returns
Calendar-year total returns of iShares Morningstar Mid-Cap ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +17.94% |
| 2025 | +10.12% |
| 2024 | +15.28% |
| 2023 | +16.21% |
| 2022 | −16.04% |
| 2021 | +22.79% |
| 2020 | +13.26% |
| 2019 (Aug–Dec) | +7.14% |
IMCB 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% | +3.9% | −5.4% | +8.4% | +3.2% | +3.7% | +0.4% | — | — | — | — | — |
| 2025 | +4.1% | −2.0% | −4.5% | −1.4% | +5.6% | +3.6% | +1.6% | +2.0% | +1.0% | −0.6% | +0.6% | −0.1% |
| 2024 | −1.2% | +5.6% | +4.4% | −5.1% | +2.4% | −0.5% | +3.9% | +2.4% | +2.3% | −0.7% | +8.7% | −6.7% |
| 2023 | +8.4% | −2.7% | −1.7% | −0.8% | −2.5% | +8.3% | +3.6% | −3.6% | −5.0% | −4.7% | +10.3% | +7.4% |
| 2022 | −6.6% | −0.6% | +2.2% | −7.2% | +0.4% | −9.8% | +9.4% | −3.1% | −9.4% | +8.4% | +6.6% | −5.2% |
| 2021 | −1.4% | +4.7% | +3.9% | +5.0% | +1.0% | +1.1% | +0.8% | +2.7% | −3.9% | +6.2% | −3.0% | +4.2% |
| 2020 | −0.5% | −9.2% | −18.8% | +12.3% | +6.2% | +1.2% | +6.5% | +4.0% | −1.5% | −0.8% | +13.5% | +4.3% |
| 2019 | — | — | — | — | — | — | — | −2.2% | +2.9% | +1.7% | +2.7% | +2.0% |
IMCB Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 14.74%
- 3-year Sharpe ratio: 0.76 (vs 4.5% risk-free rate)
- Best month: +10.29% (Nov 2023)
- Worst month: −6.74% (Dec 2024)
IMCB Fund Flows
Monthly money in and out of iShares Morningstar Mid-Cap ETF, from SEC Form N-PORT.
- 12-month net flow: $253.3M
- 12-month gross sales (incl. reinvestments): $510.8M
- Sales ÷ redemptions: 1.98×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $29.1M | $9.7M | $19.3M |
| Jun 2026 | $200.3M | $199.7M | $617K |
| May 2026 | $0 | $22.5M | −$22.5M |
| Apr 2026 | $8.4M | $17.2M | −$8.7M |
| Mar 2026 | $16.8M | $4.3M | $12.4M |
| Feb 2026 | $4.4M | $0 | $4.4M |
| Jan 2026 | $12.7M | $0 | $12.7M |
| Dec 2025 | $25.1M | $0 | $25.1M |
| Nov 2025 | $40.9M | $0 | $40.9M |
| Oct 2025 | $132.5M | $4.1M | $128.4M |
| Sep 2025 | $16.6M | $0 | $16.6M |
| Aug 2025 | $24.1M | $0 | $24.1M |
IMCB Assets Under Management
Net assets of iShares Morningstar Mid-Cap ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $1.66B |
| 2026-04-30 | $1.55B |
| 2026-01-31 | $1.45B |
| 2025-10-31 | $1.33B |
| 2025-07-31 | $1.14B |
| 2025-04-30 | $988.83M |
| 2025-01-31 | $1.06B |
| 2024-10-31 | $996.34M |
| 2024-07-31 | $911.30M |
| 2024-04-30 | $825.69M |
| 2024-01-31 | $795.15M |
| 2023-10-31 | $688.76M |
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.