I think I might be stupid. Confused about margin account Hi I have an individual brokerage account. It has margin enabled. I also have 10k in the account. I have 1k already invested. I want to purchase 2 shares of JNJ (as an example), but fidelity says I have $0 margin buying power and $0 non-margin buying power. Shouldn't I have $9k margin buying power? I'm confused.  What have I misunderstood here?