Arx Investment Management LP (New York)
Andrew Henderson
Updated on March 15, 2026
Arx Investment Management LP is a large advisory firm based in New York. It manages $1.26 billion of regulatory assets for 3 client accounts. It has been registered with the SEC as an adviser since 2005 and has operated in the jurisdiction of New York.
Arx Investment Management provides market timing services. It doesn't provide financial planning services to its clients. On top of advisory services, the firm doesn't engage in other business activities.
Arx Investment Management: assets under management
The assets under management (AUM) of Arx Investment Management LP is $1.26 billion, all of which is managed in discretionary accounts. The firm's AUM has gone down by -5% since the beginning of its operation, and the company doesn't manage any assets belonging to foreign clients.
The firm manages $1.26 billion in discretionary accounts. On average, the discretionary accounts where all decisions are made on behalf of the client hold $421.4 million each.
Fees & Commissions
The advisory firm has several streams of revenue. Clients pay Arx Investment Management LP for their services and products based on fixed fees and performance-based fees. Flat-fee based compensation is the most transparent and the one you can safely predict in advance. These fees don’t include brokerage commissions, interest, taxes, and other account expenses.
Indirect Owners
The SEC currently registers 1 indirect owner.Based in New York
The principal office where Arx Investment Management LP performs its advisory services is located at 717 Fifth Avenue, New York, NY 10022, which is also the mailing address of the firm. It doesn’t run an office outside of the United States.
You can reach the main office by calling the phone number 212-812-4740 or by fax 212-812-4755. The normal business hours are 8:30 - 5:00 on Monday - Friday.