Questão jurídica principal
Whether the taxpayer's securities dealings were private asset management or professional securities trading for Solothurn state tax purposes.
Decisão extraída
The taxpayer was acting as a professional securities trader; the capital gains were taxable as self-employment income under cantonal law.
Fundamentação extraída
Under Solothurn practice, the decisive factors were systematic conduct, entrepreneurial initiative and risk, and the use of borrowed funds. Despite a relatively modest transaction frequency, the taxpayer pursued a plan, used significant leverage, accepted substantial risks, and financed major renovation and litigation costs with the gains.