Common stock represents residual ownership in a corporation. Common shareholders elect the board of directors and vote on major structural corporate actions. In statutory voting, an investor can cast only their share count per open board seat. In cumulative voting, total votes can be concentrated on one candidate.
Preferred stock provides equity ownership with bond-like fixed dividend payments. Cumulative preferred stock mandates that any skipped quarterly dividends must be paid in full (arrears) before any common dividends can be distributed. Convertible preferred stock allows holders to exchange shares for common stock.
American Depositary Receipts (ADRs) are foreign corporate shares held in trust by a U.S. bank and traded on domestic exchanges in U.S. dollars. Although denominated in USD, ADRs expose investors to foreign currency risk because foreign dividend payments are converted at prevailing exchange rates.