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Impermanent Gain

The Mathematical Revolution Behind Passive Hedging

What Is Impermanent Gain?

Impermanent Gain is a groundbreaking financial phenomenon exclusive to Shordex’s Shortbit. Unlike traditional hedging strategies that decay over time or require constant maintenance, Impermanent Gain ensures that a zero-delta portfolio (e.g., Bitcoin + Shortbit) not only retains its value during market volatility but grows with every price swing. This is achieved through Shortbit’s inverse pricing mechanism and multiplicative hedging design.

Key Properties:

  • Passive Protection: No rebalancing, active management, or monitoring required.

  • Asymmetric Upside: The portfolio’s value never falls below its initial value and always grows with Bitcoin’s price deviations.

  • Volatility Harvesting: Market swings become a source of profit, not risk.


The Math Behind the Magic

The Impermanent Gain effect is modeled by the function:

PortfolioValue=InitialValue(x+1/x)/2Portfolio Value = Initial Value *(x + 1/x) / 2

where x = Current Bitcoin Price / Entry Bitcoin Price.

Graph Interpretation:

  • At x = 1 (no price change), the portfolio value equals its initial value.

  • For any x ≠ 1, the portfolio value increases symmetrically—whether Bitcoin’s price rises or falls.


How It Works: Zero-Delta Hedging with Shortbit

  1. Construct the Portfolio: Pair Bitcoin with an equivalent value of Shortbit (e.g., $10,000 of Bitcoin plus $10,000 of Shortbit).

  2. Hold Indefinitely: No rebalancing needed.

  3. Profit from Volatility: The portfolio’s value grows as Bitcoin’s price moves away from its entry point.

Example 1: Bitcoin Rises 50%

  • Initial Portfolio: $10,000 of Bitcoin + $10,000 of Shortbit = $20,000.

  • Bitcoin Price Change: +50% (x = 1.5).

  • New Portfolio Value:

$20,000×(1.5 + 1/1.5​) / 2 = $20,000×(1.5 + 0.6667) / 2 = $21,666.70

Result: 8.33% gain despite holding a "hedged" position.

Example 2: Bitcoin Drops 50%

  • Initial Portfolio: $10,000 of BTC + $10,000 of Shortbit = $20,000.

  • Bitcoin Price Change: -50% (x = 0.5).

  • New Portfolio Value:

$20,000×(0.5 + 1/0.5) / 2 = $20,000×(0.5 + 2) / 2 = $25,000.

Result: 25% gain during a catastrophic market crash.


Why Traditional Hedging Fails

Scenario
Shortbit (Impermanent Gain)
Perpetual Futures
ETFs / Leveraged Tokens

+50% BTC Move

+8.33%

-Funding Fees

-Rebalancing Lag

-50% BTC Move

+25%

Liquidation

-Tracking Error

Maintenance

None

Constant Monitoring

Daily Rebalancing


The Power of Holging

Impermanent Gain enables Holging (Hold-to-Hedge):

  1. Buy: Acquire Shortbit proportional to your Bitcoin exposure.

  2. Forget: Let the mathematical properties of the portfolio work.

  3. Prosper: Earn asymmetric returns whether markets rally, crash, or chop.

This eliminates:

  • Liquidation risk (perpetuals).

  • Time decay (options).

  • Management fees (ETFs).


Why This Matters

  • Institutions: Hedge multi-million dollar positions without operational overhead.

  • Retail Traders: Protect savings passively, even with minimal expertise.

  • Liquidity Providers: Earn fees while being shielded from directional risk.

Impermanent Gain isn’t just a feature—it’s a paradigm shift in financial engineering.


Next Steps:

  • Explore our Alpha Testing Guide to experience Impermanent Gain firsthand.

  • Dive into Shortbit Use Cases for institutional, retail, and LP applications.

  • Join the Shordex Telegram to ask questions and see the math in action.

No rebalancing. No liquidations. Just code-enforced financial logic.

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