Vaisala OY Class A has returned +49.3% from $40.25 since 2021, trailing SPY's +70.5% over the same period. VAIAF is currently trading near its all-time high of $60.60. Of 13 tracked news events, 15% produced a positive market-adjusted return.
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Every dot on the chart is a news event. The return shown is market-adjusted (vs SPY). Green = stock outperformed. Red = underperformed. Dot size = magnitude of reaction.
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