SPY, Oct 9, 2026 · Trading desk

Paper trading, not investment advice. Every account and book on these pages trades paper money: the Alpaca paper accounts DAILY ($1,000,000 from Sep 30, 2026), INTRA1 ($100,000 from Sep 30, 2026) and INTRA2 ($100,000 from Sep 30, 2026); the simulated books SIM-TT ($100,000 from Sep 29, 2026), SIM-V2B ($100,000 from Sep 28, 2026) and SIM-V2B-TOM ($100,000 from Sep 28, 2026), filled at the official close; and market-analysis's ledgers, one contract per position against a $100,000 reporting equity. No real money is at stake. Positions, trades and P&L are published the same day, as the engines record them, with each number's source and cost model labelled. Nothing here is a recommendation to buy, sell or hold any security, and nothing is tailored to you. Each strategy is a pre-registered experiment, read once on a date or at a trade count fixed in advance; until then its record says little either way. I may hold or have held positions in securities shown here. Markets can and do lose money.

Account: MA
Strategy: S-B SPY put spread, exploration
Book: exploration
Symbol: SPY
Asset class: option structure
Side: short
Exposure: long
Status: open
Opened: Oct 9, 2026
Closed: —
Quantity: 1
Entry price: 1.237543
Exit price: —
Exit by: —
Book value at entry: —

Record GitHub ledger

Cost model

half of each leg's quoted spread plus $0.65 a contract at entry; $0.65 a contract at expiry

Role	Date	At (ET)	Side	Qty	Asked	Price	Rule's price	Close	Slippage	Against the close	How	Why	The rule's numbers
entry	Oct 9, 2026	—	sell	1	—	1.237543	—	—	—	—	late window	gate OFF:G2	8 trigger numbers x 15.41 vix 15.41 asof 2026-10-08 mode both vix3m 18.08 reason OFF:G2 verdict OFF:G2 x_median 15.594999999999999 9 numbers m 0.03559566542797415 x 14.84 spot 778.56 width 28 window P3 dte_cal 21 entry_cost_usd 2.3573335849795916 entry_tier_max 1 credit_over_width 0.044197959183673474

Contract	Right	Strike	Expiry	Side	Qty	Entry	Exit	Facts
SPY261030P00751000	put	751.00	Oct 30, 2026	short	1	1.9104	—	4 numbers exit_tier null entry_tier 1 entry_source print_vwap entry_spread 0.0058618
SPY261030P00723000	put	723.00	Oct 30, 2026	long	1	0.672857	—	4 numbers exit_tier null entry_tier 1 entry_source print_vwap entry_spread 0.014785142857142858

variant: B1
risk_usd: 2676.2457142857143
graded_at: null
n_touches: 4
policy_id: sb-1.0
structure: PS
max_loss_usd: 2676.2457142857143
cost_over_credit: null

SPY · S-B SPY put spread, exploration

The trade

Entry and exit

Legs

Notes