Systematic risk is the chance of loss from forces that hit broad markets together, such as deep recessions, sharp policy shifts, or global financial shocks. Holding more stocks of the same market does little to cancel it. Unsystematic risk, by contrast, is the company specific layer that diversification can shrink.
Key takeaways
- Even a wide portfolio of local shares can fall together when systematic risk spikes.
- Asset classes and geographies with different drivers can soften, but not erase, market wide blows.
- Higher expected returns in finance theory often compensate for bearing more systematic risk.
- Risk management starts by admitting what diversification cannot fix.