SyntheticFi LLC logo

SyntheticFi LLC

Updated today

Total assets under management

$153,208,408

Total clients

121

0% high-net worth

Total advisors

2

of 2 employees

Firm size

Supported

1-3 advisors or $200M+ in AUM

Average clients per advisor

61

Average account size

$1,266,185

About

SyntheticFi provides investment advisory and sub‑advisory services primarily to other registered investment advisers and also to individual clients, corporations, and small businesses. The firm implements a box spread option strategy and manages index option positions on either a discretionary or non‑discretionary basis as an alternative to margin loans and securities‑based lines of credit.

The firm’s investment approach centers on automated trading of exchange‑traded European‑style S&P 500 index options, with client‑facing software that lets clients select box size and receives ongoing performance reporting, margin monitoring, and alerts. SyntheticFi uses a suitability questionnaire during onboarding to limit engagements and, when acting as a sub‑advisor, calculates assets under management for option positions as the absolute value of the positions’ value‑at‑expiration.

Noteworthy disclosures in the brochure include the explicit use of derivatives in managed accounts through its box‑spread strategy, web‑based performance and margin analytics, and formal referral arrangements with third‑party “Promoters” that are compensated for client introductions. The firm was formed in January 2024, is indirectly owned by Cyclone Technologies, and highlights technology and coding‑error risks tied to its proprietary software.

Client services

Portfolio management

Fee options

Fixed

Flat monthly advisory fee of up to $200 per month for non-discretionary individual advisory services.

Percentage

0.00% - 2.00% (varies by portfolio size, service type, complexity; negotiated per client)

Other

Account minimum: No account minimum stated; the firm currently has no account minimum but reserves the right to impose one in the future with written notice. Fee-only: Annual fees based on assets under management ranging from 0.00% to 2.00%, charged monthly in arrears for discretionary services; flat monthly fee up to $200 for non-discretionary individual services charged monthly in advance.

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

Main office location

SyntheticFi LLC

156 2 Nd St, #610

San Francisco CA 94105, United States

Number of offices

1

Warmer team member

Not sure where to start?

We'll help you think it through – whether you ultimately need an advisor or not.

Call (201) 292-4557

Warmer provides personalized recommendations and introductions to independent fiduciary advisors. We do not supervise advisors, manage or hold assets, guarantee performance, or provide advice about specific investments.

Each advisor listed on our site is an independent fiduciary responsible for their own advice. Warmer may receive fees from advisors for participation or referrals; these fees are paid by advisors and do not affect the fees clients pay for advisory services.

For advisor listings, we rely on sources including public filings and data provided by advisors, and we cannot guarantee that all information is current or accurate. Please review an advisor's Form ADV and do your own diligence before entering into an advisory relationship.

By using our service, you agree to Warmer's Terms of Service and Advisory Agreement and Privacy Policy. Logos provided by Logo.dev

© 2026 Warmer Holdings Inc. ("Warmer")