Options universe
Every name on the desk — book, watchlist, and AI chain — not a 5-name shortlist. 17/20 delayed Yahoo chains loaded. Selecting a ticker pulls more expiries. Names without a live chain show a labeled model ATM strip (realized vol), never an invented exchange print. Betas on the risk tab are unconditional. They are not a condition for this chain. "so" = shares-only overlay (wide spread, foreign listing, or unworkable 10-lot at this size).
Overlay blotter
Short-dated selling only. Equities stay holds. No put on a name you would not hold 12 months at that strike. 0DTE is the exchange’s nearest expiry — not a strategy.
NXRT 22.50 put · expiry 2026-10-17 · last 19.52 is through the strike. Cash-secured: assignment is the base case if it finishes there. Not closed automatically. · -4d left. Paper only.
| Name | Leg | Strike | Expiry | Credit/debit | Mark | uP&L | Pledged | |
|---|---|---|---|---|---|---|---|---|
| NXRT | short 1 put csp | 22.5 | 2026-10-17 | 0.62 | 2.90 | -$228 | $2,250 |
Book overlay MTM -$290 already in equity. Not a broker margin engine. REIT calls: if the remaining extrinsic is inside the dividend, assignment usually hits the day before ex-div — monthly payers more often. That can cut the long-term clock. Ordinary income either way. Not tax advice.
Seller board · ESS
Gateway class-ACoreshares-onlyATM spread/mid 55% > 10% — 5–10 lot is not workable. Shares only.
Treated as a US listed ordinary.
ATM spread/mid 54.9% · OI 362 · 10-lot $270,000. Thresholds: spread/mid > 10% → shares-only; ATM OI < 50 or 10-lot notional > $250,000 → not a 10-lot. Missing bid/ask is unknown, not a block.
IV rich vs realized — candidate to sell premium
- Sell 270 put · mid 1.85 · Δ -0.32
- Period yield 0.0% · ann. 0.4%
- Assignment px 268.15 vs last 273.55 · cash tied $27,000
- Shares-only — overlay refused
Shares-only at this size. Overlay refused.
- Sell 280 call · mid 0.50 · Δ 0.23
- Yield on shares 0.0% · 137 sh held
- Not extended — yield may be thin
30-day IV cone · CSP
Risk-neutral lognormal from delayed IV, 30d window. Not a forecast. Missing IV is n/a — not invented. The listed put may expire sooner; the cone is the hold window if you take the stock.
Last 273.55 · strike 270.00 (strike inside the 16–84 (1σ) 30d window) · assign px 268.15 · IV 23.8% · median 273.83. Dashed: last / strike / assign.
Shares-only at this size — overlay refused. ATM spread/mid 55% > 10% — 5–10 lot is not workable. Shares only. Borrow n/a (never invented).
Yahoo options · delayed · not CBOE live.
Expiry 2026-10-16 · 6d
| Type | Strike | Last | Bid/Ask | IV | Vol | OI |
|---|---|---|---|---|---|---|
| call | 270 | 6.80 | 3.30 / 5.80 | 23.4% | 1 | 326 |
| call | 280 | 0.50 | 0.00 / 1.40 | 23.1% | 10 | 164 |
| call | 260 | 12.60 | 12.10 / 14.50 | 32.4% | 1 | 0 |
| call | 290 | 0.15 | 0.00 / 0.95 | 35.0% | 3 | 417 |
| call | 250 | 22.90 | 21.80 / 24.70 | 51.3% | 20 | 0 |
| call | 300 | 0.03 | 0.00 / 1.15 | 50.9% | 21 | 233 |
| call | 240 | 32.90 | 31.70 / 34.50 | 64.4% | 7 | 0 |
| call | 310 | 0.58 | 0.00 / 1.15 | 53.8% | 1 | 501 |
| call | 230 | 42.90 | 41.60 / 44.70 | 83.9% | 13 | 0 |
| call | 320 | 4.80 | 0.00 / 1.25 | 65.2% | 1 | 22 |
| put | 270 | 2.00 | 1.40 / 2.30 | 23.8% | 15 | 36 |
| put | 280 | 10.26 | 6.20 / 9.10 | 32.2% | 4 | 104 |
| put | 260 | 0.50 | 0.00 / 1.15 | 34.5% | 2 | 18 |
| put | 290 | 18.91 | 16.20 / 18.70 | 47.5% | 4 | 4 |
| put | 250 | 0.75 | 0.00 / 1.05 | 50.0% | 1 | 14 |
| put | 300 | 16.40 | 10.60 / 13.30 | 0.0% | n/a | 1 |
| put | 240 | 0.40 | 0.00 / 0.95 | 55.0% | 1 | 63 |
| put | 230 | 0.01 | 0.00 / 0.95 | 69.1% | 2 | 5 |
| put | 220 | 0.40 | 0.00 / 0.00 | 25.0% | 5 | 0 |
| put | 210 | 0.80 | 0.00 / 0.75 | 94.3% | 1 | 6 |
Model vs mid (BSM)
- C 270 mid 4.55 · model 5.46 · Δ 0.68 · ν 0.13
- C 280 mid 0.50 · model 1.05 · Δ 0.23 · ν 0.11
- C 260 mid 13.30 · model 14.29 · Δ 0.90 · ν 0.06
- P 270 mid 1.85 · model 1.77 · Δ -0.32 · ν 0.13
- P 280 mid 7.65 · model 8.35 · Δ -0.70 · ν 0.12
Black–Scholes European, rate = cached T-bill. Not a live vol surface.