Trading Signal API · Institutional
Institutional Trading Signal APINon-Custodial · Carry on Excess
Built for overseas HNW and family offices. Capital stays in your brokerage account. Meridian delivers auditable US mid/long signals and rebalance events, with 20% carry on excess return. Optional one-API execution via Moomoo OpenD Bridge.
~+44%
Reference ~6-month return framing
+75.4%
Full auditable window end NAV
20%
Carry on excess · quarterly settle
Foundation
Why Meridian
Data
Market-wide feeds and theme tags, structured research refreshed daily, inputs fully traceable.
Models
Stock selection, portfolio rules, regime switches, and MTM in one engine—not ad-hoc scripts.
Discipline
Research ideas codified: score gates, momentum, and exits that are auditable and reproducible.
Product
Product tiers
One strategy engine, layered by execution and reconciliation depth.
Tier
Signal
Subscription / custom
- Target weights & rebalance events
- REST + Webhooks
- Reason codes · factor snapshots · regime
- You execute at your broker
- Best for teams with an OMS
Engagement
Engagement path
From qualification to live pilot—capital remains yours.
01
Qualify
KYC / terms / benchmark & fee schedule
02
Sandbox
API key · paper parity · docs
03
Paper
2–4 weeks path & execution checks
04
Live
Small capital pilot · carry billing
Execution
Execution · Moomoo overseas
You call one Meridian API. Orders route through a client-side Bridge Agent to local OpenD, then into your Moomoo account. Meridian never holds funds or trade passwords.
Non-custodial
Assets stay in your Moomoo / chosen brokerage. We never take custody.
One API
Orders, positions, fills, and connection health exposed through Meridian.
Client OpenD
OpenD + Bridge run in your environment; unlock password stays local.
Auditable
Rebalances and fills stream back for carry and compliance packs.
Commercial
Fees & carry
Primary term is 20% of excess return, crystallized each calendar quarter. Monthly figures are accrued only unless you opt into a platform fee.
| Carry | 20% of excess over the agreed benchmark |
|---|---|
| Settlement | Quarterly crystallize; wire within 10–15 business days |
| Monthly | Accrued display (optional platform fee); no monthly 20% lock |
| HWM | High-water mark—no double billing until new highs |
| Benchmark | Absolute 0 / SPY / cash+ — locked in writing |
| Collection | Invoice + wire; unpaid fees may suspend API |
| Billing basis | Verified designated account / fills only |
Signal-only without auditable follow may use a flat fee. Execute tier is designed for carry because fills are verifiable.
Terms
Term framework
| Form | Trading signal API (not discretionary AUM custody) |
|---|---|
| Universe | US equities, medium/long horizon |
| Capital | Your brokerage; optional Moomoo Bridge routing |
| Transparency | Weights, reason codes, factors; exportable ledger |
| Exit | Stop API anytime; carry settles through termination |
Who it fits
Strong fit
- Overseas HNW / family offices
- Capital at your broker (IBKR / Moomoo, etc.)
- Auditable signals, not black-box calls
- Comfortable with multi-month holds & drawdowns
- Willing to share 20% of excess
Weak fit
- Need full custody / discretionary mandate
- Intraday high-frequency leverage
- Cannot accept model risk or drawdowns
- Require guaranteed or principal-protected returns
Access
Request access
Share contact details and preferred tier—we will schedule terms and sandbox.
Demo rules portfolio walk-forward, NAV starts at 100 (~2026-01-22 → 2026-07-24). Past performance is not indicative of future results and is not investment advice or a return guarantee. Live API universe is US equities. Open public rules portfolio