Preferred shares are commonly less actively traded than widely held common shares and benchmark government bonds. Their investor base may be narrower, individual issues may be smaller and trading volume may be limited. As a result, preferred shares can have wider bid-ask spreads and may be more difficult to sell promptly at a price close to the most recently quoted market value. Option D is therefore correct.

Exchange listing does not guarantee equal liquidity. Liquidity depends on the number of active buyers and sellers, issue size, trading frequency, market-maker participation and prevailing market conditions. This makes option C incorrect. Options A and B incorrectly characterize preferred shares as highly liquid or the most liquid security type. In stressed markets, liquidity can deteriorate further, particularly for smaller or structurally complex preferred-share issues.

Government bonds issued by the Government of Canada normally benefit from deep institutional participation and active dealer markets. Large-cap common shares may also trade in substantial volume. Preferred shares frequently occupy a less-liquid position relative to both categories, although liquidity varies by issuer and issue.

The wider spread represents an implicit transaction cost because an investor may purchase near the ask price and sell near the lower bid price. Official references: CIRO Retail Securities Syllabus—preferred-share risks, liquidity and trading characteristics; official Retail Securities practice examination—preferred-share liquidity and transaction costs.

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