1. What Is Diversification?
Diversification means spreading your money across many different investments so that the failure of any one has only a limited impact on your overall portfolio. It's the practical application of "don't put all your eggs in one basket."
The famous phrase: Nobel laureate Harry Markowitz called diversification "the only free lunch in investing" — a rare way to reduce risk without necessarily reducing expected return.
2. Why It Works
Different assets don't all move together. When some fall, others may rise or hold steady. By combining them, the ups and downs partially cancel out, smoothing your overall return.
The key concept is correlation — how closely two assets move in tandem. Combining assets with low or negative correlation reduces portfolio volatility more than combining ones that move in lockstep.
3. Dimensions of Diversification
True diversification works across several dimensions, not just owning many stocks:
- •Across companies: hold many stocks so one bankruptcy can't wipe you out.
- •Across sectors: spread beyond one industry, per our sector guide.
- •Across asset classes: mix stocks, bonds, commodities, and cash.
- •Across geographies: include international as well as domestic markets.
- •Across company sizes: blend large, mid, and small caps.
4. Can You Over-Diversify?
Yes. Beyond a point, adding more holdings barely reduces risk while making the portfolio harder to track and diluting your best ideas — sometimes called "diworsification."
Research suggests much of the benefit of diversifying a stock portfolio is captured with a few dozen well-chosen, uncorrelated holdings. The goal is smart spreading, not simply owning everything.
5. What Diversification Can't Do
Important: Diversification reduces company-specific risk, but it can't eliminate market risk. In a broad crash, most assets fall together. It protects you from any single disaster, not from the market as a whole — which is why it pairs with the broader risk management toolkit.
6. Diversifying with WIT
Use WIT to build and monitor a diversified portfolio:
- Explore multiple sectors and asset classes — stocks, crypto, commodities, forex — on the dashboard.
- Use the sector heatmap to avoid over-concentrating in one area.
- Check correlations intuitively by watching how different assets react to the same news.