About

One system.
Two directions.

Invalid Signal runs a single automated trading engine that scans US equities every day for equity trade setups. The same scanner identifies opportunities in both directions — stocks poised to rise and stocks poised to fall.

The system produces two types of trades from a single pipeline: Equity (Long) positions for rising markets and Margin (Short Sell) positions for falling markets. This means the system can generate returns regardless of market direction.

Both modes are currently operating in paper trading mode. No real money is at risk. We're validating live performance against two years of backtested results before any real capital is deployed.


Two modes, one scanner
▲ Long

Equity
Cash Account

Buys stocks with cash and holds for a few days. No leverage, no borrowing. Profits when the stock price rises. This is the core strategy — designed for steady returns in normal and rising markets.

Direction ▲ Long only
Holds each trade 2 – 10 days
Instruments US stocks (equity)
Leverage None — cash only
Best in Neutral / Risk-On markets
▼ Short

Margin
Short Sell

Sells borrowed stocks to profit when prices fall. Acts as a hedge when markets decline. The same scanner identifies weakness patterns — instead of buying strength, it sells into weakness.

Direction ▼ Short only
Holds each trade 2 – 10 days
Instruments US stocks (margin account)
Leverage None — no amplified risk
Best in Risk-Off / declining markets

How the system works

1
EOD Scan — After market close, the scanner analyses 3,000+ US stocks across 8 strategy profiles looking for equity setups in both directions.
2
Regime Filter — The system checks the current market regime (Risk-On, Neutral, Risk-Off, Distress) and blocks signals that don't fit. Short signals are blocked in bull markets. Long signals are reduced in bear markets.
3
Pre-Market Gap — At 9:15 AM ET, sector ETF pre-market prices are checked. Entry triggers are adjusted per-sector based on expected gap direction — relaxed for gap-up sectors, tightened for gap-down.
4
Order Placement — At 9:25 AM ET, limit orders are placed via Alpaca for selected signals. Long orders buy stock. Short orders sell borrowed stock. All orders are LIMIT — no market fills.
5
Position Management — Once filled, every position is tracked with a stop-loss, TP1 target, and trailing stop. After TP1 is hit, the stop moves to breakeven and then trails the profit.

What we believe

The market doesn't care about your opinion, your analysis, or your conviction. It moves based on the collective behaviour of millions of participants — and no one can predict that consistently.

What you can do is build a system with a statistical edge — a set of conditions that, over hundreds of trades, produces more winners than losers by enough of a margin to be worth running. That's what we've done. The system doesn't guess. It executes the same rules every single time.

We don't pretend this is risk-free. Every trade can lose. The goal is not to win every trade — it's to win enough of them, by enough, to be profitable over time. And when the market turns against long positions, the short side provides a hedge.

● Currently in paper trading mode — no real money is being traded. This phase validates that the live system performs as the simulation predicted before any real capital is involved.