Quickstart

$ git clone https://github.com/ghosting9458/prior-protocol
$ cd prior-protocol/priorem

$ npm test
  101 passing

$ npm run emit
  regenerates every figure used by the site

$ npm run underwrite -- --sweep
  the cold start curve for counterparty pricing

import { price, greeks, surfaceVol } from './site/options.js';

const S = 182.40, K = 190, T = 30 / 365;
const sigma = surfaceVol({ S, K, T, atmVol: 0.42 });

price({ S, K, T, r: 0.05, q: 0, sigma, kind: 'call' });
greeks({ S, K, T, r: 0.05, q: 0, sigma, kind: 'call' });

import { marginRequirement, borrowingPower } from './site/perp.js';

const book = [
  { kind: 'call', K: 190, expiryDays: 30, qty: -10 },
  { kind: 'call', K: 210, expiryDays: 30, qty:  10 }
];
const market = { S: 182.40, atmVol: 0.42, r: 0.05, q: 0 };

marginRequirement(book, market).initial;   // nets the spread
borrowingPower(book, market).advanceRate;  // what it lends