C000030581 Performance — Morgan Stanley Discovery Portfolio, Class A
Data updated: 2026-08-27
C000030581 returned +1.97% year to date and −5.64% over one year to Jun 2026. Annualised returns are +21.14% over 3 years and −6.80% over 5 years. Against its US Mid-Cap Growth category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $178, against $152 for the category, and to $94 over one year, against $118. Volatility over the past three years was 29.26% a year. In the 12 months to Jun 2026 the fund lost a net $125.1M, and assets reached $1.25B.
C000030581 Growth of $100
What $100 invested in Morgan Stanley Discovery Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Growth category average over the same months.
| Period | C000030581 | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $94 | $118 |
| 3 years (Jul 2023 – Jun 2026) | $178 | $152 |
| 5 years (Jul 2021 – Jun 2026) | $70 | $129 |
| Since data start (Jul 2019 – Jun 2026) | $190 | $203 |
C000030581 Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.97% |
| 1 year | −5.64% |
| 3 years (annualised) | +21.14% |
| 5 years (annualised) | −6.80% |
C000030581 Annual Returns
Calendar-year total returns of Morgan Stanley Discovery Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +1.97% |
| 2025 | +13.54% |
| 2024 | +39.32% |
| 2023 | +41.25% |
| 2022 | −62.47% |
| 2021 | −10.55% |
| 2020 | +153.76% |
| 2019 (Jul–Dec) | −2.23% |
C000030581 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 | −5.6% | −1.1% | −4.6% | +9.6% | +9.8% | −4.9% | — | — | — | — | — | — |
| 2025 | +9.0% | −6.1% | −10.1% | +7.8% | +13.3% | +9.2% | +3.4% | −0.3% | +0.3% | +0.3% | −8.8% | −2.2% |
| 2024 | −8.6% | +11.8% | +3.8% | −10.2% | +0.4% | +3.8% | +2.5% | +6.5% | +5.8% | +7.2% | +20.9% | −6.2% |
| 2023 | +16.3% | −3.8% | +3.1% | −6.6% | +8.3% | +10.0% | +8.9% | −10.4% | −5.9% | −9.4% | +13.9% | +16.5% |
| 2022 | −21.9% | −1.6% | −5.4% | −22.7% | −17.4% | −7.0% | +14.0% | +0.6% | −11.6% | +0.4% | −5.5% | −9.6% |
| 2021 | +9.6% | +2.5% | −12.2% | +3.1% | −5.2% | +13.0% | −5.4% | +0.7% | −5.1% | +10.8% | −6.9% | −11.7% |
| 2020 | +6.9% | −0.9% | −12.6% | +24.7% | +22.2% | +14.8% | +14.1% | +6.0% | +4.0% | −1.4% | +20.1% | +5.2% |
| 2019 | — | — | — | — | — | — | +4.4% | −2.8% | −10.8% | +0.1% | +9.7% | −1.8% |
C000030581 Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 29.26%
- 3-year Sharpe ratio: 0.57 (vs 4.5% risk-free rate)
- Best month: +20.91% (Nov 2024)
- Worst month: −10.44% (Aug 2023)
C000030581 Fund Flows
Monthly money in and out of Morgan Stanley Discovery Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$125.1M
- 12-month gross sales (incl. reinvestments): $63.0M
- Sales ÷ redemptions: 0.33×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $1.9M | $12.9M | −$11.0M |
| May 2026 | $1.9M | $15.7M | −$13.9M |
| Apr 2026 | $5.7M | $10.7M | −$5.0M |
| Mar 2026 | $8.1M | $11.8M | −$3.8M |
| Feb 2026 | $6.6M | $9.9M | −$3.3M |
| Jan 2026 | $10.9M | $11.6M | −$727K |
| Dec 2025 | $8.7M | $9.9M | −$1.2M |
| Nov 2025 | $4.3M | $10.2M | −$5.9M |
| Oct 2025 | $3.4M | $17.8M | −$14.4M |
| Sep 2025 | $3.7M | $23.2M | −$19.5M |
| Aug 2025 | $4.7M | $22.5M | −$17.8M |
| Jul 2025 | $3.2M | $31.9M | −$28.7M |
C000030581 Assets Under Management
Net assets of Morgan Stanley Discovery Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.25B |
| 2026-03-31 | $1.12B |
| 2025-12-31 | $1.27B |
| 2025-09-30 | $1.44B |
| 2025-06-30 | $1.45B |
| 2025-03-31 | $1.14B |
| 2024-12-31 | $1.29B |
| 2024-09-30 | $1.15B |
| 2024-06-30 | $1.04B |
| 2024-03-31 | $1.14B |
| 2023-12-31 | $1.12B |
| 2023-09-30 | $949.37M |
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.