# Leverage Decay (J-factor)

<mark style="color:$info;">J-factor is Multiply's dynamic risk engine. It continuously monitors depth profile, odds dynamics, open interest microstructure, and resolution conditions, defining when leverage should be reduced.</mark>

#### **What J-factor governs**

<mark style="color:$info;">J-factor is a set of parameters that jointly define:</mark>

* <mark style="color:$info;">The</mark> **maximum leverage** <mark style="color:$info;">permitted at any point in the position's lifecycle</mark>
* <mark style="color:$info;">The</mark> **microstructure conditions** <mark style="color:$info;">that trigger reduction: depth thresholds, spread widening, order book imbalance, fill rate degradation, etc.</mark>
* <mark style="color:$info;">The</mark> **execution path** <mark style="color:$info;">for unwinding the corresponding hedge when a threshold is breached</mark>

#### **Dynamic behavior**

<mark style="color:$info;">Because reduction is conditional on microstructure rather than scheduled against time, J-factor produces fundamentally different outcomes on the various sides of a market.</mark>

<mark style="color:$info;">On the winning side, depth typically holds or improves as resolution approaches. Participants want exposure to the likely outcome, thresholds are rarely breached, and positions frequently</mark> **carry their full initial leverage through resolution**<mark style="color:$info;">.</mark>

<mark style="color:$info;">On the losing side, counterparty depth drains, spreads widen, and fill rates deteriorate. These are exactly the signals J-factor monitors. Thresholds are breached earlier, triggering progressive reduction. Each step unwinds a proportional share of the hedge on the venue, returning UF capital and shrinking the position's footprint against a thinning book.</mark> **This also protects the user**<mark style="color:$info;">: each reduction pushes the liquidation price further away, letting them stay in the market longer than they would under a static leverage framework.</mark>

<mark style="color:$info;">This microstructure-driven approach has two additional properties.</mark>&#x20;

* <mark style="color:$info;">First, because there is no fixed exit schedule, there is no predictable pattern that external participants can front-run or position against, resulting in better execution for both the trader and the Facility.</mark>&#x20;
* <mark style="color:$info;">Second, because the engine does not rely on time-to-resolution to govern leverage, the same architecture that manages a multi-week election market can underwrite short-duration markets of 5 or 15 minutes without modification. What changes is the speed at which microstructure evolves, not the logic that governs the response.</mark>