Explain left-skewed returns and Black–Scholes terms
Company: Qube
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: hard
Interview Round: Technical Screen
Answer the following quantitative finance / statistics questions:
1. **Left-skewed returns**
- Name one or more sectors/strategies whose return distributions are often **left-skewed** (negative skew).
- Explain *why* their returns tend to be left-skewed.
2. **Black–Scholes call formula terms**
- In the Black–Scholes European call price
\[
C = S_0 N(d_1) - K e^{-rT} N(d_2),
\]
what do the **two main terms** represent intuitively?
- (No derivation required.)
Quick Answer: This question evaluates understanding of quantitative finance and statistical concepts—specifically interpretation of left-skewed return distributions and the intuitive roles of the two terms in the Black–Scholes European call formula—testing competency in risk characteristics, probability, and option pricing.