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feat: Positioning Desk — Deribit dealer GEX, gamma flip, walls, vanna/charm, max pain

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Live BTC/ETH positioning from Deribit open interest: Black-76 Greeks on each
expiry's forward, dealer gamma exposure per 1% move under switchable dealer
conventions, gamma profile and flip level, call/put walls, vanna and charm
exposure, per-expiry max pain, ATM IV and implied moves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FpiqUMAyo4RL5DdQHMWbwE
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Claude
2026-10-19 05:10:57 +00:00
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@@ -46,6 +46,7 @@ NEXUS TERMINAL is a Bloomberg-style web application for professional forex optio
| **Cross-Asset Desk** | Gold · silver · BTC · ETH · EURUSD · DXY · US10Y · WTI correlation matrices (30D/90D/1Y/EWMA) with a correlation-break monitor; gold/silver ratio z-scores, OU half-life, Engle-Granger cointegration and Kalman hedge ratio; Margrabe outperformance-option pricer with correlation sensitivity |
| **Jump Lab** | Merton and Bates (Heston + jumps, COS pricing) calibrated to every live Deribit BTC/ETH expiry: model-vs-market smiles, fit RMSE, jump intensity/size, jump share of variance, crash-jump odds, 30-day risk-neutral density vs lognormal; manual Merton for metals/FX event and gap risk; one-click hand-off of jump parameters to Hedge Lab |
| **Event Vol** | Event & weekend "vol time" term structure: strips FOMC / CPI / NFP variance lumps and the weekend weight out of the ATM curve (live Deribit fit for BTC/ETH; assumptions or pasted broker quotes for XAU/XAG/EUR/any pair), event-implied moves and straddle breakevens, forward vols and calendar-arbitrage flags, fair vol for any expiry incl. 0DTE/1-day, built-in 2026 FOMC/CPI/NFP calendar merged with live Forex Factory events, realised day-of-week / weekend-weight / FOMC-lump study |
| **Positioning** | Live BTC / ETH options positioning from Deribit open interest: dealer gamma exposure (USD per 1% move) with switchable dealer-side convention, gamma profile across spot and gamma-flip level, call / put walls, vanna and charm flows, dealer delta, put/call, and per-expiry max pain, ATM IV and implied 1σ move |
| **Exotics Desk** | Structured-products pricer: all eight single barriers (Reiner-Rubinstein/Haug, rebates) with Broadie-Glasserman-Kou discrete-monitoring correction, barrier price/delta profile through the barrier, touch ladder of hit probabilities, smile-consistent digitals (−∂C/∂K on the vanna-volga smile); Dual Currency Investment / crypto "Dual Investment" fair-APR ladder with an offer audit (platform margin, implied vol you are paid); KO accumulator Monte Carlo with zero-cost strike, KO odds and geared-loss tail, optional Merton jumps |
| **TARF Desk** | Target redemption forwards (importer buys / exporter sells, leverage, full / exact / no-payout target) priced side by side under flat vol, Dupire local vol from an arbitrage-free SSVI surface calibrated to ATM / RR / BF, and Merton jumps: zero-cost strike, model-risk spread, knock-out timing and survival, expected cash flows per fixing, client P&L distribution and ES vs the capped gain, delta / vega |