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INSIDER PROFILE · SE
Joakim Byström
Verkställande direktör (VD)
Profile key: se|joakim byström
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 5
- Purchases · 24M
- 6
- Average purchase
- SEK 181,146
- Gross purchase value
- SEK 1,086,874
- Last purchase
- 2026-06-02
- Completed 20D events
- 4.0
- Outcome status
- INSUFFICIENT_SAMPLE
Latest company: Absolicon Solar Collector AB
Companies: Absolicon Solar Collector AB
Post-purchase outcomes
Benchmark-relative outcomes are available against OMX Stockholm 30.
- Excess return = stock return − OMX Stockholm 30 return over the same period.
- Hit rate = positive excess-return events ÷ completed events.
- Price coverage = valid point-in-time prices ÷ events mature enough for that period.
- Returns start on the first shared trading session on or after publication.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 4Small sample | 100.0% (4/4) | 75.0% (3/4) | +32.8% | +25.5% | -10.4% |
| 20D | 4Small sample | 100.0% (4/4) | 50.0% (2/4) | +25.3% | +24.7% | -28.9% |
| 60D | 4Small sample | 100.0% (4/4) | 25.0% (1/4) | -40.2% | -5.6% | -59.3% |
| 120D | 1Small sample | 100.0% (1/1) | 100.0% (1/1) | +151.4% | +151.4% | +151.4% |
Research patterns
- First purchase in 12M
- 3/4
- Large purchase ≥ €100k
- 0/4
- Cluster buying · 15D
- 2/4
- Buying the dip · ≥20% below prior 52W high
- 4/4
- Routine / opportunistic
- Not classifiable
Counts are profile-wide, point-in-time research labels. They never affect the insider score or ranking.
Every completed outcome is shown; n<5 is descriptive small-sample evidence and is not scored. Disclosure-level observations published on the same date may share a return path and may not be statistically independent. These results never affect the insider score or ranking.