· QANTERION · Trading Fundamentals · 2 min read
Paper trading vs. live trading: what changes?
The main difference is not the interface. It is who confirms identity, orders, fills, funds, and risk state. Similar screens can represent very different facts.
Short answer: Local simulation validates interface and logic. Paper trading records virtual orders, fills, and ledger state on a server. Live trading also requires real broker or exchange execution, funding, and risk infrastructure. Similar screens do not represent the same business facts.
The core differences
| Dimension | Local simulation | Paper trading | Live trading |
|---|---|---|---|
| Primary use | Interface and flow validation | Rule and server-workflow validation | Real market execution |
| Account funds | Sample or local state | Server-owned virtual ledger | Real account and funding records |
| Orders and fills | Locally simulated | Paper matching or execution model | Broker/exchange confirmation |
| Risk controls | Guidance or local rules | Server-owned paper risk | Real risk and execution constraints |
| Funding | No real movement | No custody settlement | Requires payment, custody, or clearing |
What local simulation can validate
Simulation is useful for checking whether the product is understandable and the strategy workflow is complete. It can help users learn:
- how to read accounts and strategies;
- how to start, pause, or stop a simulated run;
- how to interpret positions and risk;
- how funding request states are organized.
Browser state does not prove that a server accepted an order and cannot change a real balance.
What server-owned paper trading adds
Paper trading usually gives the server ownership of identity, commands, execution, and ledger state. Even without a live market connection, it can validate:
- sessions and permissions;
- accepted, rejected, and idempotent commands;
- virtual orders, fills, positions, and P&L;
- server-owned risk rules;
- traceable ledger and event history.
This is closer to a production workflow, but it does not silently become live trading.
What live trading still requires
Live operation needs several conditions at once:
- account identity and trading permissions;
- an available and compliant market, broker, or exchange connection;
- real order and fill acknowledgements;
- custody, payment, clearing, or financial-ledger capability;
- risk limits, monitoring, audit, and incident handling;
- product, regional, and user eligibility.
A UI setting or “live” toggle cannot replace these conditions.
Reading state labels correctly
In a trading terminal:
- “submitted” means intent was sent or recorded;
- “accepted” does not mean filled;
- “running” must identify whether local, paper, or trading-core state confirms it;
- “completed” should have a corresponding order, fill, ledger, or platform record.
Precise state language prevents process from being mistaken for outcome.
The current QANTERION boundary
QANTERION currently focuses on simulation and paper-trading workflows. Live execution, custody, and real-money processing become available only when the related services, account permissions, and compliance conditions are explicitly enabled.
Continue with What is an AI quant trading terminal?, then review the FAQ and risk disclosure.
- simulation
- paper trading
- live trading
