# FINRA Rule 4210 Margin Requirements

> Comprehensive FINRA rule setting forth initial and maintenance margin requirements for broker-dealer customer transactions across securities and derivatives.

Canonical: https://americasfirmledger.com/charters/finra-rule-4210-margin
Last updated: 2026-10-20T23:41:50.410Z

## FINRA Rule 4210 Margin Requirements (FINRA-4210)

- Type: license
- Jurisdiction: United States
- Regulatory body: FINRA Rule 4210 Margin Requirements
- Wikidata: Not supplied

Comprehensive FINRA rule setting forth initial and maintenance margin requirements for broker-dealer customer transactions across securities and derivatives.

### Recorded metadata

| Field | Value |
| --- | --- |
| category | Broker-Dealer Prudential Rules |
| coverageDesk | Americas Firm Ledger |
| regulatoryBody | FINRA Rule 4210 Margin Requirements |
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