{
 "updated_at": "2026-10-17",
 "positions": [
  {
   "symbol": "NVDA",
   "expiry": "Mar19 2027",
   "strike": 130,
   "qty": 2,
   "premium": 1.2,
   "cost_usd": 240,
   "account": "B",
   "opened": "2026-09-18",
   "status": "open",
   "note": "SP 賣出認沽, 收權利金",
   "spot_at_open": 219.34,
   "leg": "SP",
   "side": "short"
  },
  {
   "symbol": "AMZN",
   "expiry": "Dec18 2026",
   "strike": 160,
   "qty": 1,
   "premium": 0.18,
   "cost_usd": 18,
   "account": "B",
   "opened": "2026-10-05",
   "status": "open",
   "note": "LP 買入認沽 — 收租策略嘅廉價尾部保險（Dec18'26 到期，非 SP 全期保護；往後 roll 與否到時再決定）",
   "spot_at_open": 251.4,
   "leg": "LP",
   "side": "long"
  },
  {
   "symbol": "AMZN",
   "expiry": "Jul16 2027",
   "strike": 155,
   "qty": 1,
   "premium": 1.98,
   "cost_usd": 198,
   "account": "B",
   "opened": "2026-10-05",
   "status": "open",
   "note": "SP 賣出認沽 — 收租為主（deep OTM 約 38%，剩約 283 日）",
   "spot_at_open": 251.4,
   "leg": "SP",
   "side": "short"
  },
  {
   "symbol": "AMZN",
   "expiry": "Dec17 2027",
   "strike": 150,
   "qty": 1,
   "premium": 3.05,
   "cost_usd": 305,
   "account": "B",
   "opened": "2026-10-14",
   "status": "open",
   "note": "SP 賣出認沽 — 長期收租（14 個月遠期）",
   "leg": "SP",
   "side": "short",
   "spot_at_open": 256.39
  },
  {
   "symbol": "CRM",
   "expiry": "Oct30 2026",
   "strike": "260/265",
   "qty": 1,
   "premium": "SC260@3.46 + LC265@2.36",
   "net_credit": 1.1,
   "cost_usd": 110,
   "account": "B",
   "opened": "2026-10-14",
   "status": "open",
   "note": "Call Credit Spread — 賣260認購 @3.46 + 買265認購 @2.36，淨收 1.10×100=$110 credit",
   "leg": "SC+LC",
   "side": "short",
   "spot_at_open": 245.41
  },
  {
   "symbol": "TSLA",
   "expiry": "Sep17 2027",
   "strike": 180,
   "qty": 1,
   "premium": 3.45,
   "cost_usd": 345,
   "account": "B",
   "opened": "2026-10-15",
   "status": "open",
   "note": "SP 賣出認沽 — 長期收租（11個月遠期）",
   "leg": "SP",
   "side": "short",
   "spot_at_open": 363.86
  },
  {
   "symbol": "IBKR",
   "expiry": "Jun17 2027",
   "strike": 55,
   "qty": 4,
   "premium": 1.25,
   "cost_usd": 500,
   "account": "A",
   "opened": "2026-10-16",
   "status": "open",
   "note": "SP 賣出認沽 — 收租為主（deep OTM 約 34%，剩約 244 日）",
   "leg": "SP",
   "side": "short",
   "spot_at_open": 83.79
  }
 ]
}