Eudora Altair US500: the anatomy of a decision

Altair is the brightest star in Aquila, a vertex of the Summer Triangle. It lends its name to an Expert Advisor built on a single rule: not every dip deserves an order. Inside, there is no button. There is a control room. Below, how the rule became a machine.

Moment zero

MetaTrader 5 terminal, S&P 500 cash CFD (US500, .US500Cash, SPX500, [SP500]), M15, minimum lot 0.01. Every trading minute the grid engine watches the index and, when it dips, puts forward a candidate: a possible entry. This is where Altair opens its deliberation. Each candidate receives fifty readings and one verdict: the cycle, or silence.

Nearly 800 trees, one question

Nearly 800 decision trees work inside the file. They receive 50 market measurements, read at the instant of the candidate, and answer one precise question: will this dip run deep?

The grid proposes. The trees authorize or hold back.

A yes is a cycle that starts. A no is an order that is never born. The model does not invent entries: it judges them.

Fifty onboard sensors

• Structure. Price position against six moving averages, on M15 and on the daily.
• Depth. How far the index has already come off its highs, across six horizons.
• Regime. Volatility right now against its usual level.
• Momentum. RSI, stochastic, CCI, Bollinger.
• Context. Hour, day of the week, spread at that instant.

It is not a schedule. Same hour, two different days, two different answers, because on those two days the 50 measurements say different things. The model learned from eight and a half years of S&P 500, from 2018 to 2026. No DLL, no external connection: every decision is calculated and closed on your terminal.

Mission architecture: the plan before the first order

When the cycle starts, the basket climbs up to 8 steps and the target grows at every step. A basket that reaches the third step closes at a value several times that of a short basket: depth gets invoiced.

Nothing is improvised. Before the first order, Altair calculates the entire ladder on your balance, with the lots and the floating result at every step, and prints it to the log. The plan exists before the cycle does. In flight, the margin brake follows every step and the spread guard every entry.

The bridge: live telemetry

• Cycle status. BUILDING with the step reached, RECOVERING with how much ground is already regained, CLOSING.
• The engine as it decides. Every candidate evaluated, every entry held back. You also see the decisions that never become orders.
• Event log in plain words. Cycle opened, step armed, step held back by the margin brake, cycle closed with the realized profit.

The absence of an order is not an absence of work: it is a decision you can watch.

If the VPS restarts, Altair keeps its state and resumes the basket exactly where it left off. Hedging and netting accounts.

Four setups, one engine

Real ticks, S&P 500 cash, M15, 1,000 USD, leverage 1:500, January 2021 to July 2026. Every run reconciled with the tester log.

In all four: 66 months out of 66 in profit. Balanced takes 1,000 USD to 12,549 in about 2,000 trades; Extreme to 255,953 in five and a half years. Between the slowest setup and the fastest, the lot grows more than fourfold and the profit factor moves by sixteen hundredths, from 4.18 to 4.34: same period, same decision engine.

Proving ground

• Multiple brokers, real ticks. From April to September 2026, every complete month closed in profit on each broker.
• Deal by deal. Every released version is checked against the reference engine, trade by trade. For the latest update alone, more than 140 real-tick backtests.
• The long series, 2018-2026. Safe 4.6x, Balanced 25.6x, Aggressive 135x, with 101 months out of 101 in profit. Extreme 524x.
• With 500 USD, from July 2025 to June 2026, monthly average: Safe 9 USD, Balanced 35, Aggressive 66, Extreme 129.

Custom: the key to the engine room

Base lot, multiplier, steps, distances, basket take profit and its growth, margin brake, spread limit, trading hours, trend filter. And the switch of the decision engine: in Custom, the hand on the switch is yours.

Step onto the bridge

From 500 USD (2,000 where the minimum lot is 0.1), leverage 1:100 or higher, VPS 24/5. Free lifetime updates, direct support from the author via MQL5 messages.

Download the demo and open the Strategy Tester: S&P 500 cash, M15, Every tick based on real ticks, 1,000 USD, leverage 1:500, January 2021 to July 2026, Balanced mode. Then open the log and read the plan printed before the first order: that is where you see who built the machine.

Eudora Altair US500: https://www.mql5.com/en/market/product/197730
Live signal: https://www.mql5.com/en/signals/2389697
Eudora Lab channel: https://www.mql5.com/en/channels/eudoralab

Altair. Verdict first. Then the order.