A plain-English guide to the mathematical models, market metrics, and trading jargon used across the Crucible platform.
Rather than working in isolation, the metrics and terms in this glossary interact dynamically throughout the trading day. Here is a visual map of how a single session proceeds on the Crucible desk:
[ 08:30 AM ET: PRE-MARKET ]
│
▼
[ Catalyst Event ] ──────► (Earnings, CPI/NFP Inflation news)
│
▼
[ Pre-Market Scanner ] ────► (Identifies high Volume Ratio, Gaps)
│
▼
[ Session Posture ] ──────► (LUMEN sets posture based on Event Risk)
│
[ 09:30 AM ET: RTH OPEN ]
│
▼
[ Opening Range (OR) ] ─────► (High & Low bounds set in first 15m)
│
▼
[ Gate Structure ] ────────► (Checks: ADX > 20, VWAP Persistence)
│
┌─────────┴─────────┐
[ PASS ] [ FAIL ]
│ │
▼ ▼
[ Enter Long/Short ] [ Standby ]
│ (No trade)
▼
[ Risk Shield ]
┌─────┴──────────────────┐
▼ ▼
[ Trailing Stop Loss ] [ Invalidation Level ]
(Calculated via ATR) (Price crosses OR boundaries)
│ │
└──────────┬─────────────┘
▼
[ Exit Trade ] ─────► (MOC Order or Time Exit closed Flat)
A technical indicator that measures the strength of a trend on a scale of 0 to 100, without indicating whether the price is going up or down. A reading above 20 typically indicates a strong, established trend. In the Crucible desk, close-leg agents check the ADX to confirm a real program has been running all day before attempting to fade (trade opposite to) it.
A specialized trading algorithm or model developed by Crucible Trading to execute a specific, mathematically-backed strategy (e.g., Wicker, Null, Echo). Each agent operates independently with its own strict risk rules, templates, and execution windows.
The brokerage and market data API provider used by Crucible Trading. Alpaca handles the execution of paper and live trades and serves historical intraday candlestick data to the website generator.
A measure of market volatility that shows how much an asset moves, on average, over a given timeframe (such as the last 14 days or the last 14 five-minute intervals). Crucible agents use ATR to set safety boundaries (Stops), ensuring stops are adjusted to the market's current speed and size.
# ATR-based Stop calculation stop_distance = 1.5 * atr_value stop_price = entry - stop_distance
Specific performance thresholds (like win rate, profit factor, or drawdown) that an agent must meet or exceed to prove its viability. These serve as target checkpoints before an agent is allowed to advance to live capital trading.
A piece of news or market event (such as geopolitical conflicts, earnings reports, or economic data releases) that sparks strong participant interest and price movement in an asset.
A critical government economic report that measures inflation. Because CPI releases can cause massive, unpredictable jumps in market prices, many agents have safety rules that force them to stand down (skip trading) on CPI days.
The peak-to-trough decline in a trading account's value, expressed as a percentage. For example, if a $10,000 account drops to $9,000 before recovering, it has experienced a 10% drawdown. Drawdown is the primary metric used to measure strategy risk and control consecutive losses.
A chart representing the cumulative growth or decline of a trading account's value over time. A smooth, steadily rising equity curve is the ultimate goal of any trading desk.
The danger of sudden price shocks caused by scheduled macro-economic announcements (like interest rate decisions or employment data). Crucible classifies event risk into levels (NONE, LOW, MEDIUM, HIGH) daily to decide whether the desk should trade or sit out.
A market condition where a strong directional trend begins to run out of steam because the buying or selling pressure is mathematically spent. Reversal agents seek to identify these points and trade in the opposite direction, expecting the price to bounce back.
A custom Crucible metric calculated by multiplying an asset's volume ratio by its morning signal return. Close-leg fade strategies use it to gauge how spent a trend is; if it is below a floor (e.g. 0.80), the agent skips the trade.
# Score calculation score = vol_ratio * morning_ret if score < 0.80: skip_trade = True
A trading style that involves trading opposite to the current momentum. If a stock has spiked dramatically all day due to geopolitical headlines and is showing exhaustion, a "fade" strategy will take a Short position, betting that the price will revert lower by the close.
A state where a trading account holds only cash and no active positions. When an agent is "flat," it has zero exposure to market movements, protecting it from overnight or off-hours price shocks.
The branch of the U.S. Federal Reserve that sets interest rates. Its meeting announcements (usually at 2:00 PM ET) are high-impact events that trigger rapid market shifts, making them critical calendar markers for Crucible's risk controllers.
Financial contracts that represent standard stock market indexes, traded on futures exchanges. MNQ stands for Micro E-mini Nasdaq-100 Futures, and MES stands for Micro E-mini S&P 500 Futures. To fetch retail intraday data, Crucible maps these futures to their ETF proxies (QQQ and SPY).
When an asset opens the trading day at a price significantly higher (gap-up) or lower (gap-down) than the previous day's closing price. This leaves a literal empty vertical gap on the price chart that traders monitor for continuation or reversals.
A series of mandatory pre-entry mathematical tests that an agent checks before placing a trade (e.g., volume ratio, trend persistence, time of day). If even a single check fails, the "gate is closed," and the agent stands down for the day.
# Gate criteria
gate = {
"min_vol_ratio": 1.2,
"min_adx": 20.0,
"vwap_persist_mins": 30
}
The raw total gains or losses from all winning and losing trades before subtracting fees, commissions, or slippage.
The specific conditions (such as a price level being broken or an index moving too far) that prove the trading plan's thesis is incorrect. If invalidation triggers, agents immediately cancel active orders and exit current positions.
Using a small amount of cash to control a much larger dollar value of assets. While leverage amplifies gains, it equally amplifies losses, requiring Crucible's TEMPER controller to enforce strict leverage caps.
A measure of how easily an asset can be bought or sold without altering its price. Highly liquid assets (like SPY or QQQ) have millions of daily shares traded, ensuring that agents can get filled at their exact target prices instantly.
A trade taken with the expectation that the price of the asset will rise (buying a stock first, then selling it later at a higher price).
Crucible's automated morning synthesis pipeline. LUMEN runs pre-market, scanning briefings, calendars, and watchlist logs to publish ZEUS's Daily Advisory Synthesis and set the desk's posture.
The mathematical theory that asset prices eventually return to their historical average after making an extreme move. This is the underlying thesis for House Echo and House Slack.
An order type executed at the exact closing second of the regular market session (4:00 PM ET). Reversal and exhaustion agents use MOC orders to guarantee they exit the market before the overnight session begins.
The net financial result of a trade or strategy after all costs (such as slippage, data fees, and execution costs) have been accounted for. This represents the actual cash added to or removed from the account.
A high-impact monthly government jobs report showing how many workers were added to the U.S. economy (excluding agriculture). Like CPI, it is a key driver of interest rate expectations and volatility, causing many agents to stay on standby.
The highest and lowest price levels established during the first few minutes of the trading session (usually the first 15 or 30 minutes). Agents like Null use the Opening Range boundary breaks to trigger execution setups.
A simulated trading environment where algorithms use real-time data but virtual cash. This allows the firm to validate agent logic in production conditions without risking real capital.
The foundational mathematical or strategic guidelines that define a trading style. For example, Pillar 1 focuses on structural sweeps, while Pillar 2 focuses on close-leg fades.
A key ratio of trading efficiency, calculated as gross profits divided by gross losses. A profit factor of 1.50 means the strategy won $1.50 for every $1.00 it lost. A PF greater than 1.5 is the firm's baseline target.
The general volatility or trend state of the market (e.g. Low VIX regime, high VIX regime). Operating rules and agent thresholds adapt dynamically to the prevailing regime.
The main session of the U.S. stock market, running from 9:30 AM to 4:00 PM Eastern Time. Most Crucible agents focus their scans and execution windows strictly within these hours.
The automated program that scans the pre-market universe daily to locate highly active, high-volume stocks driven by fresh catalysts (news, earnings, gaps). These candidates feed the scanner watchlist.
The firm's operating mode for the day (e.g. Active, Selective, Standby, or Sitting-out), decided pre-market based on macro risk levels and event risks.
A trade taken with the expectation that the price of the asset will fall. An agent borrows shares to sell them first, then hopes to buy them back cheaper later, pocketing the difference as profit.
The difference between the expected entry price and the actual execution price. Slippage typically occurs in fast-moving markets or on illiquid assets where prices jump before an order can be filled.
The gap between the bid price (the highest price buyers are offering) and the ask price (the lowest price sellers are demanding). A tight spread indicates high liquidity and lower entry cost.
A risk-management order that automatically closes out a losing trade at a predetermined price, capping the maximum possible loss. Every active trade in Crucible must have a stop loss attached.
Crucible's internal compliance and auditing framework. TEMPER validates backtest results, enforces session risk budgets, and checks agent metrics before authorizing them to trade paper or live capital.
A strategy rule that closes out a trade at a specific time of day (e.g., exactly at 15:58 ET) rather than waiting for a target price or stop loss, avoiding the risk of overnight holding.
A protective stop loss order that automatically moves with the price as it travels in a profitable direction, locking in gains while preserving protection against sudden reversals.
The CBOE Volatility Index, often referred to as the market's "fear gauge." It measures the market's expectation of 30-day volatility. High VIX levels (>30) trigger firm-wide warning protocols or stand-down rules.
A mathematical model representing the implied volatility of options across different strike prices and expiration dates, used to gauge options market positioning.
A comparison of the current session's trading volume to its historical average (usually the 20-day average). A volume ratio of 1.20 indicates that trading volume is 20% higher than normal, signaling strong institutional participation.
The true average price paid for an asset throughout the session, weighted by volume. Because institutions use VWAP as their benchmark for execution quality, it acts as a major support and resistance line for Crucible's agents.
A gate condition requiring that price stays consistently on one side of the VWAP for a set period, proving that a real institutional program is active and controlling the session.