San Diego California 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 instruction given to the jury in a case involving allegations of fraudulent practices or course of dealing by a stockbroker, specifically related to stockbroker churning. This instruction is also relevant to situations where the broker has violated the Blue Sky Law and breached their fiduciary duty towards the client. Stockbroker churning refers to the unethical practice of excessive buying and selling of securities in a client's account by the stockbroker, primarily to generate commissions for themselves rather than benefiting the client. This behavior constitutes a fraudulent practice or course of dealing, which is a violation of Rule 10(b) — 5(c) of the Securities Exchange Act. In addition to stockbroker churning, this jury instruction also covers violations of the Blue Sky Law. Blue Sky Law is a state-level securities regulation designed to protect investors from fraudulent practices by ensuring proper registration, disclosure, and oversight of securities offerings within the state. If the stockbroker engages in activities that violate the Blue Sky Law, such as selling unregistered securities or making false statements regarding investment opportunities, it will be considered as an additional charge against the stockbroker. Furthermore, the instruction focuses on the breach of fiduciary duty by the stockbroker. A stockbroker owes a fiduciary duty to their clients, which means they must act in the best interests of the client and provide honest and fair advice. When the stockbroker fails to fulfill this duty and engages in fraudulent practices or violates the Blue Sky Law, it constitutes a breach of their fiduciary duty. Overall, San Diego California 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 encompasses multiple aspects of a case involving unethical practices by stockbrokers. The instruction seeks to inform the jury about the specific legal standards that apply in such cases and guides them in evaluating the evidence presented to determine whether the stockbroker engaged in fraudulent practices, violated the Blue Sky Law, and breached their fiduciary duty to the client. There are no specific variants of this jury instruction mentioned in the question.