Function getWeekKey

src/fixtures/v2Finance.ts:18–26

(isoDay: string)

const getUtcDay = (isoDay: string) => new Date(`${isoDay}T00:00:00Z`);

const getWeekKey = (isoDay: string) => {
  const date = getUtcDay(isoDay);
  const day = date.getUTCDay();
  const mondayOffset = day === 0 ? -6 : 1 - day;

  date.setUTCDate(date.getUTCDate() + mondayOffset);

  return toIsoDay(date);
};

const stockEventShocks: Record<number, number> = {
  34: -13,