Chipmos Technologies Inc (Nasdaq: IMOS), an SEC filer in Semiconductors & Related Devices, closed at $55.46, -3.6%, on 2026-08-28. Institutional ownership, earnings history and filed financials are on the tabs below.
Returns use ADJUSTED closes (splits + dividends).
Volume as VALUE TRADED — close × volume, in USD.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | IMOS | SPY | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · ytd | +25.3% | +21.0% | −20.4% | +27.5% | +54.0% | −7.4% | −26.2% | +17.0% | — | — | — | — | +89.6% | +13.4% | +76.2pp |
| 2025 | +5.5% | −6.4% | −9.4% | −2.0% | +13.7% | +0.7% | −6.4% | −7.3% | +21.6% | +10.9% | +28.9% | +8.4% | +64.3% | +17.7% | +46.6pp |
| 2024 | −1.2% | +4.5% | +12.0% | −11.3% | −2.4% | +0.0% | −8.1% | −1.5% | −1.1% | −7.3% | −9.5% | −4.0% | −27.9% | +24.9% | −52.7pp |
| 2023 | +7.7% | +1.9% | +6.7% | −4.7% | +6.9% | −1.7% | −3.2% | +3.8% | −3.2% | +8.5% | +3.2% | +5.4% | +34.8% | +26.2% | +8.6pp |
| 2022 | −5.5% | +12.7% | −5.1% | −12.3% | +8.8% | −18.6% | −4.0% | −3.4% | −20.0% | +6.6% | +12.9% | −3.9% | −32.6% | −18.2% | −14.4pp |
| 2021 | −0.6% | +10.1% | +18.7% | +7.6% | −5.3% | +5.4% | +13.1% | +15.0% | −19.6% | −2.8% | −1.3% | +6.9% | +49.8% | +28.7% | +21.1pp |
| 2020 | −14.0% | −1.0% | −9.1% | +14.2% | +2.0% | +11.3% | +1.5% | −11.2% | −0.4% | +1.6% | +12.6% | +10.5% | +13.8% | +18.3% | −4.6pp |
| 2019 | −1.4% | −0.2% | +1.8% | +2.5% | −15.5% | +5.2% | +18.3% | +11.8% | +4.2% | −3.2% | +13.5% | +1.4% | +40.2% | +31.2% | +9.0pp |
| 2018 | +2.8% | −5.6% | −7.5% | −13.1% | +4.9% | +4.7% | −3.9% | −5.5% | +11.6% | −13.5% | +22.4% | −4.3% | −12.0% | −4.6% | −7.4pp |
| 2017 | +9.1% | +1.4% | +13.7% | −1.7% | +15.8% | −1.3% | −1.7% | −6.6% | +6.4% | +3.5% | −9.8% | −2.2% | +26.1% | +21.7% | +4.4pp |
Month-end over prior month-end; a blank cell is no return.
Basis. Both columns share one basis, so Δ is like-for-like.
End-of-day closes; a “ytd” or “part” year is not a full year.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years ⓘ | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 21 |
| Positive ⓘ | 57% | 52% | 62% | 43% | 67% | 48% | 29% | 50% | 48% | 33% | 57% | 48% |
| Median | +1.4% | +1.4% | +1.4% | −2.0% | +6.9% | −1.1% | −3.9% | +0.1% | −0.4% | −3.3% | +3.2% | −0.9% |
| Best | +59.7% | +51.8% | +42.3% | +153.4% | +54.0% | +16.1% | +18.3% | +19.5% | +54.4% | +28.0% | +28.9% | +15.1% |
| Worst | −16.9% | −6.4% | −20.4% | −23.8% | −15.5% | −18.6% | −26.2% | −34.8% | −25.4% | −70.0% | −45.1% | −16.0% |
| vs SPY ⓘ | +2.1pp | +3.1pp | +0.0pp | −3.5pp | +2.9pp | −3.5pp | −7.6pp | −1.9pp | +1.6pp | −6.6pp | −0.5pp | +0.9pp |
253 monthly observations · 2005–2026 · benchmark SPY
