Every trader has a plan.
The market's job is to make you forget it.
Meridian is the first real-time psychological stability index for NinjaTrader 8. It tracks seven behavioral dimensions during your live session and distills them into a live PSI score — so you know where you stand before the next trade.
You know what you should have done.
Every trader walks away from a bad session knowing exactly where it went wrong. The problem isn't knowledge — it's that in the middle of a live session, you can't see yourself clearly.
- Added size right after a loss
- Moved the stop to "give it a little more room"
- Took the next trade too fast — still feeling the last one
- Held a loser longer than your plan ever allowed
- Broke your session rule — just this once
- Hit your daily limit and took one more anyway
Meridian doesn't tell you what to trade.
It tells you where you are — so you can decide whether to continue.
What's inside
A live instrument, not a journal.
Most psychology tools work after the fact. Meridian works during — updating your stability index in real time, inside NinjaTrader 8.
A live PSI — from 0 to 100, in real time
A single score updated after every execution: Stable (≥88), Caution (72–87), or Critical (<72). Spot rising behavioral pressure before it compounds.
The seven patterns that quietly cost traders the most
Revenge entries, stop manipulation, size outliers, hold-time collapse, prolonged loss holds, session rule violations, and overtrading — each tracked independently.
A live overlay that stays out of your way
A floating HUD shows PSI and all seven dimension bars while you trade. Open the full hub for session timelines, history, and a detailed behavioral breakdown.
It learns what normal looks like for you
Adaptive baselines calibrate to your own trading history using statistical modeling — not someone else's standard. Market Replay sessions train your awareness without affecting your live baseline.
Your data stays on your machine — always
No accounts, no cloud sync, no network calls. Configuration and session history are stored in local files only you can access.
Test it in Market Replay first
Use Meridian in NinjaTrader's Market Replay to understand your behavioral patterns before going live. Your real baseline is never affected.
How it fits into your day
Step 1: Install into NinjaTrader 8
Add the plugin to your NinjaTrader 8 installation — it lives inside NinjaTrader and starts the moment you connect an account. No separate app to manage.
Step 2: Configure your profile
Set your session window, risk limits, and how much each behavioral dimension influences your PSI — match it to your own playbook.
Step 3: Trade with the HUD
Watch PSI and the seven dimension bars update after each fill. Use alerts as a prompt to pause and reassess — not as a trading signal.
Step 4: Review the session
Open the hub after the session to study timelines, behavioral breakdowns, and how each dimension contributed. Iterate deliberately.
FAQ
Quick answers
Full FAQ on the FAQ page.
Does Meridian place or block trades?
No. It observes executions and positions to compute PSI. It does not send orders or prevent you from trading.
Will a higher PSI make me profitable?
PSI measures behavioral stability, not market outcomes. A stable mindset supports disciplined execution — but trading results depend on many factors. Results vary; trading involves substantial risk of loss.
Is my data private?
Yes. Meridian has zero network calls. All data is stored locally on your machine in XML files — it never leaves your PC.
How does the free trial work?
You get 7 days of full access. After the trial, the subscription is $24.99/month. Cancel any time — no lock-in.
Every session starts with the best intentions.
Meridian helps you keep them.
$24.99/month after 7-day trial · cancel any time · NinjaTrader 8 required.
Trading involves substantial risk of loss. Meridian does not guarantee trading results.