Alpaca Securities LLC is a U.S.‑registered broker‑dealer and self‑clearing brokerage firm offering modern, API‑driven trading infrastructure for stocks, ETFs, options, and fixed‑income products. Headquartered in the United States, Alpaca Securities became a registered broker‑dealer with the Financial Industry Regulatory Authority (FINRA) and the U.S. Securities and Exchange Commission (SEC) in 2018, and is a member of SIPC protecting customer assets. The firm is known among innovative stock exchange brokers and NASDAQ stock brokers for providing access to the US stock market through technology‑first platforms supporting both retail and institutional clients.
What Services Does Alpaca Securities LLC Offer?
Alpaca Securities combines broker‑dealer infrastructure with modern connectivity to U.S. markets and flexible technology tools.
| Service Category | What Alpaca Securities LLC Offers |
| Equity & ETF Trading | Execution of U.S. listed equities and ETFs |
| Options Trading | Access to U.S. options markets |
| Clearing & Custody | Self‑clearing and custody for client assets |
| API Brokerage Infrastructure | Developer‑friendly APIs for trading and investing |
| Technology Support | Programmatic and algorithmic trading tools |
These services help developers, fintechs, and individual investors participate in the US stock market with programmable flexibility.
Who Is Alpaca Securities LLC For?
Alpaca Securities serves a broad range of clients, including:
- Retail investors interested in modern brokerage access
- Developers building trading and investment applications
- Institutional clients and fintech platforms integrating brokerage services
- Algorithmic traders and API‑driven market participants
The firm appeals to traders and builders who want direct, customizable access to U.S. equities and derivatives through one of the increasingly important stock exchange brokers and NASDAQ stock brokers.
Which Markets and Exchanges Can You Trade Through Alpaca Securities LLC?
Alpaca Securities provides access to major U.S. markets through its clearing and exchange memberships.
Market Access
- New York Stock Exchange (NYSE)
- NASDAQ markets
- U.S. exchange‑listed equities, ETFs, and options
Client orders are routed and executed via approved systems connected to the US stock market, supporting both manual and API‑driven trading.
Regulatory Memberships
- SEC registered broker‑dealer
- FINRA member
- SIPC member
- Member of Nasdaq Stock Market (direct member status granted in 2025)
- Member of other clearing organizations such as FICC and OCC
These registrations and memberships confirm Alpaca’s regulated status and its role as a modern participant among U.S. stock exchange brokers providing direct market access.
How Alpaca Securities LLC Helps You Trade Stocks
Here is how a typical trade or engagement works with Alpaca Securities:
- Open a brokerage account online with Alpaca Securities
- Connect to the trading dashboard or use APIs for programmatic access
- Select the U.S. equity, ETF, or options instrument to trade
- Use the execution interface or API to place an order
- The trade is routed to the appropriate exchange venue
- Settlement and custody are handled through Alpaca’s self‑clearing infrastructure
This approach accommodates both traditional traders and developers building custom strategies.
Contact Information and Website
Corporate Contact Information
| Detail | Information |
| Official Website | https://alpaca.markets |
| Main Office | San Mateo, CA / U.S.A. (Registered operations supporting U.S. brokerage) |
| Regulatory Status | SEC registered, FINRA member, SIPC member, Nasdaq exchange member |
| CRD | 288202 |
Regional Office / Campus Locations
| Region / Area | Location Cities (Focus) |
| California (Headquarters) | San Mateo, CA (Brokerage infrastructure & technology platform) |
| New York | New York, NY (Market connectivity & institutional services) |
| Global Presence | Global API integration support for partners outside the U.S. |
Alpaca maintains strategic locations to serve both domestic retail investors and global fintech partners.
Headquarters Location
Why Alpaca Securities LLC Matters for Investors
Alpaca Securities is widely regarded for its innovative approach to brokerage services:
- Modern API‑first trading infrastructure for stocks, ETFs, and options
- Self‑clearing capabilities and direct exchange membership, including Nasdaq
- Access to the US stock market for retail, institutional, and developer clients
- Competitive technology used by fintechs, developers, and algorithmic traders
- Positioned among forward‑looking stock exchange brokers reshaping market access
By combining regulatory compliance with programmable market access, Alpaca empowers a new generation of traders and platforms to engage efficiently with U.S. markets.
Frequently Asked Questions
Q1: Can I trade U.S. stocks with Alpaca Securities?
Yes. You can trade U.S. equities, ETFs, and options through Alpaca Securities’ brokerage platform.
Q2: Is Alpaca Securities regulated?
Yes. It is registered with the SEC, is a FINRA member, and participates in SIPC.
Q3: Does Alpaca support API trading?
Yes. Alpaca provides API access for developers to build trading and investment tools.
Q4: Does Alpaca clear trades itself?
Yes. As a self-clearing broker-dealer with direct clearing memberships, Alpaca handles settlement and custody operations.
