Michigan Jury Instruction — 4.4.3 Rule 10(b— - 5(c) Fraudulent Practice or Course of Dealing Stockbroker Churning — Violation of Blue Sky Law and Breach of Fiduciary Duty is a legal doctrine that deals with fraudulent practices or course of dealing by stockbrokers, specifically churning, which is a violation of the Blue Sky Law and breach of fiduciary duty. Churning refers to excessive trading in a client's account by a stockbroker for the purpose of generating excessive commissions, regardless of the client's investment objectives. This practice is considered fraudulent and unethical, as the stockbroker prioritizes their own financial gain over the best interests of the client. In the context of Michigan Jury Instruction 4.4.3, Rule 10(b) focuses on the Securities Exchange Act of 1934, which prohibits fraudulent and manipulative practices in the securities market. The rule aims to protect investors from deceptive or misleading conduct by stockbrokers. Violation of Rule 10(b) occurs when a stockbroker engages in churning, which is considered a fraudulent practice. Additionally, the instruction invokes Rule 5(c), which relates to the violation of Blue Sky Laws. Blue Sky Laws are state securities laws designed to safeguard investors from fraudulent or deceptive practices within the state. This rule is crucial in cases where churning has occurred, as it expands the legal grounds for pursuing claims against stockbrokers. When a stockbroker engages in churning and violates the Blue Sky Law and their fiduciary duty, they not only harm their clients but also undermine the integrity of the financial market. Victims of such fraudulent practices can pursue legal action to seek compensation for their losses and hold the stockbroker accountable for their misconduct. It is important to note that while the Michigan Jury Instruction — 4.4.3 Rule 10(b— - 5(c) primarily focuses on churning, there may be variations or subcategories of fraudulent practices or courses of dealing by stockbrokers that can also fall under this instruction. These may include cases involving misrepresentation, unsuitable investment recommendations, failure to disclose conflicts of interest, or other violations of applicable securities laws and fiduciary duty.