Frequently asked
questions.

Traders break their own rules not because they lack discipline, but because willpower alone cannot override an emotional response in real time. During a live session — after a losing streak, a missed trade, or a sudden drawdown — the brain enters a stress-response state that impairs rational decision-making. At that moment, rules you wrote down calmly the night before feel negotiable.

This is why rule-breaking is not a knowledge problem. Traders already know the rules. It is a behavioral enforcement problem: the system that was supposed to keep you on track (your own willpower) is precisely the thing that gets disabled when it is needed most.

The only reliable solution is to remove the decision from that moment entirely. Meridian monitors your session in real time, detects when psychological pressure is rising — through seven behavioral signals like revenge entries, stop widening, and overtrading pace — and Guard triggers automated enforcement actions before you act on the impulse. The rules you set when you were objective get enforced even when you are not.

Revenge trading happens when a loss triggers an immediate, emotionally-driven re-entry — usually larger size, same direction, and within seconds or minutes of closing the losing trade. The trader is not responding to market conditions; they are responding to the feeling of having lost.

You cannot reliably stop revenge trading through awareness alone, because awareness is exactly what gets impaired in that state. The effective solution is automated behavioral enforcement before the next order goes in.

Meridian detects revenge-entry patterns in real time using its D1 signal (Revenge Entry), which flags rapid re-entry after a loss with elevated position size. When this signal fires, it can trigger Meridian Guard — the automated enforcement layer — to intervene with an acknowledgement prompt, a mandatory trading pause, or a platform disconnect, depending on the rules you configured in advance.

You set the response level when you are calm. Guard executes it when you are not. Revenge protection is one signal of seven inside Meridian’s complete risk manager — which also enforces every traditional limit (daily-loss, single-trade, drawdown, loss-streak, plus Hard limits on size and order type) and includes a journal, Intel/Stats analytics, and local history. See all seven behavioral signals, Guard response levels, or read the full breakdown: How Meridian detects and stops revenge trading in NinjaTrader 8.

Emotional trading decisions — chasing entries, moving stops, adding to losing positions, overtrading after a winner — share a common cause: the feedback loop between market outcome and psychological state is invisible until after the damage is done.

The standard advice (journal after the session, meditate, take breaks) treats the symptom after the fact. What actually works is making the feedback loop visible during the session, so you can act on it before the decision.

Meridian does this by calculating a real-time Psychological Stability Index (PSI) that updates after every fill, every stop modification, and every rule violation. You see a live score and seven behavioral signals — including overtrading pace, hold-time bias, and size spikes — while the session is still running.

When the score drops into the Warning or Critical zone, you have a concrete signal to pause, not a vague feeling. If you have Meridian Guard configured, the system can enforce a pause for you automatically.

Yes. Meridian is a native NinjaTrader 8 add-on that delivers complete risk management — the traditional limits (daily loss, P&L and drawdown caps, single-trade loss caps, loss-streak cutoff) plus a real-time behavioral layer and automated enforcement — directly inside the platform.

It does not require a separate application or any broker API or credentials; it reads NinjaTrader’s internal data directly. Once installed, it runs alongside your existing NinjaTrader setup and monitors all connected accounts simultaneously.

Key capabilities inside NinjaTrader 8:

• Live PSI score updated in under 100ms after every fill
• Seven behavioral signals that detect patterns like revenge entries, stop widening, and overtrading pace
• Guard rules that can trigger alerts, acknowledgement prompts, trading pauses, or broker disconnection based on conditions you define (P&L limit, consecutive losses, PSI threshold, session time, and more)
• Hard limits (Guard tier, off by default) — a max-contracts cap and blocked entry order types enforced at order submission: an over-cap or forbidden entry is rejected, and a slipped market order is trimmed back to your cap (closing or reducing is never blocked)
• Session history stored locally on your machine

Meridian works with the brokers and prop firm connections that NinjaTrader 8 supports, including Apex, My Funded Futures, Take Profit Trader, and direct brokerage accounts. (Trading a Tradovate-based account instead? A standalone Meridian app is in early access — see Platforms.) See pricing to start a free trial.

A Psychological Stability Index (PSI) is a real-time composite score that measures how consistently a trader is behaving relative to their own declared rules and historical patterns during a live session.

Unlike P&L, which only tells you what happened, PSI tells you how you are behaving right now — before the next trade closes.

Meridian’s PSI runs from 0 to 100:

• Stable (88–100): Your behavior is consistent with your own session history. No significant stress signals are active.
• Caution (72–87): One or more behavioral patterns are building pressure. Worth pausing to reassess.
• Warning (55–71): Multiple behavioral patterns are active and the session is moving toward critical conditions. Strong prompt to slow down.
• Critical (0–54): Sustained psychological distress signals are present across multiple dimensions. Clear prompt to stop trading and review.

The score is calculated from seven independent behavioral dimensions — including revenge entry detection, stop manipulation, position sizing, hold-time bias, and overtrading pace — using your own trading history as the baseline, not industry averages. The system becomes more accurate as it accumulates more sessions from your specific trading style. Learn more on the Features page.

Working at height without a safety harness is not inherently dangerous — until the moment you lose your footing. The harness does not prevent the slip; it prevents the slip from becoming a fatal fall. A trader who breaks their daily loss limit on one bad morning, or revenge-trades through a funded account evaluation, has not failed because they lacked skill. They failed because there was no system in place to catch them in the critical moment.

Meridian acts as that safety harness for active traders. It operates in the background during every session, monitoring seven behavioral dimensions in real time. When psychological pressure builds to a point where the risk of a rule-breaking decision is high, Meridian Guard steps in to block the next risk-adding entry — before that order is placed, not after the damage is done. You can always close out yourself; Guard stops you from adding more.

The harness metaphor also implies something important: you still do the work. Meridian does not trade for you or make decisions on your behalf. By default it never closes your positions — it just blocks you from adding risk — but you can tick the opt-in auto-flatten checkbox on a Trading Pause or Disconnect rule, and then Guard will close your open positions for you when that rule fires. It enforces the rules you already wrote for yourself — the ones you know are correct — in the moments when your own judgment is most compromised.

Download the .zip from the Download page. Do not extract it — NinjaScript packages are imported as .zip. Then in NinjaTrader 8:

1. Tools → Import → NinjaScript Add-On, select the .zip
2. Let NT8 compile; restart if prompted
3. Open the Dashboard — either method works any time:
   • Control Center → New → Meridian Dashboard, or
   • Click the hamburger icon (☰) in the top-right of the HUD
4. In the Dashboard, open the License tab, paste your Whop license key, click Activate

Important: Meridian is an add-on, not a chart indicator. Do not look for it in the chart Indicators list. For the full walkthrough with screenshots, see the Installation Guide. For further help, see the FAQ or contact us.

No. Meridian is a complete risk manager — a superset of any futures risk tool: it does everything a traditional risk tool does (daily loss limits, P&L and drawdown caps, single-trade loss caps, loss-streak cutoffs, plus optional Hard limits on size and order type enforced at submission) PLUS a behavioral leading-indicator layer that flags tilt before the loss lands, a built-in journal, the Intel/Stats analytics workspace, and 5 years of local history. It does not provide trading signals, market analysis, entry/exit recommendations, or any form of financial advice.

The stability index reflects patterns in your own behavioral inputs during a session. How you interpret and act on that information is entirely your decision. Please read our Risk Disclaimer before use.

To understand what Meridian actually measures, see the Features page.

By default, Guard does not auto-close your open positions — it blocks new entries and enforces discipline while leaving any open trades under your control.

On any Trading Pause or Disconnect rule, you can optionally tick an auto-flatten checkbox so Guard closes all open positions for you the moment that pause or disconnect fires. This is an opt-in setting (off by default); if not enabled, positions remain open and you can always exit them yourself through your broker.

See the full list of Guard trigger conditions and response levels.

Guard v2 — first on the standalone Meridian apps for Tradovate and Ironbeam accounts (early access) — is a six-tier escalation ladder: Notify, Alert, Acknowledge, Pause, Cool-down Wall, Cut. Each tier does exactly one job. The top two are new:

Cool-down Wall (tier 5) covers your whole screen when your rule fires — a guided cool-down with a breathing pacer and a countdown, not a popup you can click away. You pre-choose a soft wall (can be Alt-Tabbed in an emergency) or a hard wall (re-asserts focus until the timer releases you). If you hold a position, a small dialog comes first — close it for me, or I’ll close it myself — and the wall only takes over once you are verifiably flat. Closing or reducing a position is never blocked, at any tier.

Cut (tier 6) blocks your broker’s order servers in the Windows firewall. The block is at the network layer and machine-wide — an order physically cannot leave that PC, which makes it the one stop that holds even a market order from that machine (a phone or second device is outside it). It requires admin rights and lifts automatically when the window ends. Guard is fail-open by design — a watchdog and Force-reset both release the firewall, so it can never lock your machine permanently.

On Tradovate demo and eval accounts, Guard can additionally write the platform’s own risk lock (liquidate-only) — enforcement at the broker itself. The NinjaTrader 8 add-on keeps its proven five-level ladder (Notify, Risk Alert, Acknowledge, Trading Pause, Disconnect); the Wall and the Cut are part of Guard v2 on the standalone apps. See Meridian Guard and the platform capability matrix.

Yes — two ways. If your firm lets you trade through NinjaTrader 8 (Apex, My Funded Futures, Take Profit Trader, and most Rithmic-based programs), the Meridian add-on works with that connection today. If your program issues Tradovate-based accounts, the standalone Meridian app connects directly to the account — no NinjaTrader anywhere (early access). See Platforms — funded accounts.

We do not require any API connection to your evaluation or funded accounts.

See pricing to start a 14-day free trial, read more about Meridian Guard — which can be configured to mirror your prop firm’s daily loss and drawdown limits (it can’t guarantee you pass an evaluation) — or see the detailed breakdown: Risk management for NinjaTrader 8 prop firm traders.

Honest answer: it depends on which lock fires, and we’d rather tell you up front. Guard works at three layers, and the layer is exactly what a determined, tilting trader can or can’t get around.

App / order layer — Notify, Alert/Risk Alert, Acknowledge, Pause, the Cool-down Wall, Strict Lock, and Hard limits all run in the app. Hard limits and Pause enforce at the order layer — over-cap or blocked-type entries are rejected at submission and a slipped market order is trimmed back, exactly as a native risk control would. The escalation tiers put hard, deliberate friction between you and a tilt trade — the kind your in-the-moment self won’t push through, which is the whole point of a commitment device. Like any in-platform risk tool, they govern this machine; someone who closes the app and trades from a phone is outside any app-level control, native or Meridian. Strict Lock means you can’t switch a fired pause off mid-session (no early exit, no force-reset, and it survives a restart) — but it’s in-app friction, not a device-proof lock.

OS / machine level — Cut (standalone) blocks your broker’s order servers in the Windows firewall. It’s machine-wide: an order physically cannot leave that PC — it holds even a market order from that machine. A phone or a second device is still outside it.

Broker level — the one device-proof stop — on Tradovate demo and eval accounts, the standalone app writes Tradovate’s own liquidate-only lock. That one is enforced at the broker, not in our app, so it holds even if you close the app, reboot, or log in from another device. It’s the real answer to “can a tilting trader just keep going?” Funded/live Tradovate and Ironbeam don’t expose this API, and NinjaTrader has no broker-side lock — there, enforcement is app/connection-level only.

So when Meridian says un-bypassable, it means exactly one thing: the broker-level lock on Tradovate eval/demo, the one device-proof stop. Everywhere else, Guard enforces at the order and machine layer — the same place native risk tools enforce — and for most traders, the version of you that’s tilting not being able to talk its way past it is all it takes. See Meridian Guard for the full enforcement model and the platform capability matrix for what runs where.

Yes. Meridian functions in Sim mode.

Additionally, Market Replay data is handled separately and will not corrupt your live adaptive baseline or session history.

Yes, but it depends on how the rule was configured.

By design, Guard rules can be set with a password-lock to prevent in-session override. This is intentional — the purpose of Guard is to enforce a commitment made when you were not in a compromised state. An override available without friction defeats the mechanism.

If a rule is not password-locked, it can be paused or adjusted in the Guard configuration panel inside the Meridian dashboard at any time. If it is locked, you must enter the password you configured during setup.

A common approach is to set a password you will not remember under pressure — the point is to raise the cost of the override enough that it becomes a deliberate decision, not a reflexive one.

Meridian keeps you anonymous. It never collects your name, broker credentials, account numbers, or funds. To improve the product and to run research on trading discipline, the Software does transmit anonymized records of your trading activity and the behavioral signals it computes — linked only to a random identifier, never to your identity, and never sold. You can opt out anytime by email.

License validation against the payment provider also runs on startup. The product works fully even if the anonymized upload is blocked (e.g. behind a strict prop-firm firewall) — collection is best-effort and never required for Meridian to function.

See the Data & Research Notice and Privacy Policy for the full detail and your choices.

Meridian targets NinjaTrader 8 (64-bit). We recommend installing the latest stable NinjaTrader 8 build from NinjaTrader. NinjaTrader 7 and earlier are not supported.

Very old NT8 builds may still run but are not guaranteed. If something breaks after an update, check the Changelog or contact us.

No. Every Meridian app is Windows-only: the native add-on runs inside NinjaTrader 8 (itself Windows-only), and the standalone apps for Tradovate and Ironbeam accounts (early access) are Windows applications as well. There is no Mac version. See Platforms for the full matrix.

You shouldn’t have to pay to find out if Meridian fits your trading — that’s what the 14-day free trial is for. You get full access, and your card isn’t charged until day 14. If it’s not for you, cancel before then and you pay nothing.

After that: a 14-day money-back guarantee on your first charge, and a full refund anytime it won’t run on a supported setup. You can cancel any time, no lock-in — you’re only ever billed for the current period.

To request a refund, email contactmeridianpsi@gmail.com with your order number. See the full Refund Policy for complete terms.

You can cancel any time during the trial or between billing periods — no cancellation fees and no questions asked.

To cancel: visit whop.com/@me/settings/memberships, log in with the email you used at checkout, and you will see your active subscriptions. From there you can cancel, update your payment method, or access your License Key.

If you run into any trouble, email us at contactmeridianpsi@gmail.com and we will handle it manually within 24 hours.

Meridian Guard is the automated enforcement layer of Meridian — the complete risk manager for serious futures traders — native in NinjaTrader 8 today, with standalone Tradovate and Ironbeam apps in early access. Meridian does everything a traditional risk tool does (daily loss limit, P&L and drawdown caps, single-trade loss cap, loss-streak cutoff, session-time stop) plus a behavioral layer that detects revenge trading, overtrading, stop-loss manipulation, oversizing, and rule violations. Guard then enforces user-defined cooldowns, lockouts, and entry blocking before traders break their own rules.

Guard enforces the classic financial limits directly — session P&L floors, unrealized-loss and single-trade-loss caps, consecutive-loss cutoffs, session-time stops, and optional Hard limits (a max-contracts cap and blocked entry order types rejected at order submission) — so it does everything your broker’s daily loss limit or NinjaTrader’s account risk settings do, at the same order layer. Then it goes further: a leading-indicator layer that reacts to rapid re-entry, session pace, stop manipulation, and rule pressure before P&L damage compounds — consecutive-loss cooldowns, mandatory pauses, and entry blocking the moment PSI or your triggers say the session is off-plan. Every traditional control reacts only after a loss has already hit a dollar line; Meridian fires before it does.

On NinjaTrader 8 the response ladder has five levels, up to a full broker Disconnect. The standalone apps run Guard v2 — a six-tier ladder (Notify, Alert, Acknowledge, Pause, Cool-down Wall, Cut) whose top tiers go beyond what an in-platform add-on can do: a full-screen Cool-down Wall with guided breathing, and Cut, a Windows-firewall block of the broker’s order servers so an order physically cannot leave the PC.

Meridian PSI (the monitor) is the real-time psychological stability index and seven-signal behavioral engine; Guard is the optional enforcement tier. The product also includes a built-in journal, the Intel/Stats analytics workspace (edge-vs-luck, equity curve, win rate, profit factor, expectancy, per-account), and 5 years of local history — so it is a complete risk-management platform, not a single-purpose lockout. See What is Meridian PSI? for the full product definition, Meridian Guard for triggers and response levels, and use cases for problem-specific pages.

Meridian Core ($49.99/mo) provides Meridian PSI — the real-time behavioral monitor that scores your discipline across seven behavioral signals — plus the built-in journal, 5 years of local session history, and the full Intel analytics workspace (monthly digest, PSI × P&L, weekday patterns, breakdowns, per-account stats, pre-session Risk Brief).

Meridian Guard ($69.99/mo) includes everything in Core, plus Meridian Guard, the automated enforcement layer (commitment device): rules with six triggers and an escalating response ladder — five levels up to broker Disconnect on NinjaTrader 8, and the six-tier Guard v2 (with the full-screen Cool-down Wall and the firewall-level Cut) on the standalone apps — plus Hard limits (a max-contracts cap and blocked entry order types enforced at order submission), pauses that survive a restart, and Strict Lock.

See the pricing page for a full feature comparison.

Meridian runs natively inside NinjaTrader 8 today (Windows). The same engine also ships as standalone Windows apps that connect directly to a Tradovate or Ironbeam account — no NinjaTrader required — currently in early access (signed self-serve installer, 14-day free trial). One license covers every platform we support, and the same core feature set — traditional limits, Hard limits, the seven-signal behavioral layer, Guard enforcement, the journal, Intel/Stats, and local history — runs on all of them (the standalone apps add a six-tier ladder with the Cool-down Wall and firewall Cut). TopstepX is a closed platform Meridian cannot run inside today. See Platforms for the full capability matrix.

Meridian helps monitor behaviors such as revenge trading, stop-loss manipulation, oversizing, hold bias, position overstay, rule violations, and overtrading pace.