Daily Summary

ASML · Trade Economics

Closed · risk rules satisfied

1x Bullish Put Credit Spread entered on Sep 15, 2026 with an expiration of 2026-10-02.

1. Setup & Quantitative Conviction

Multi-day relative streak metrics and Bayesian mean-reversion model probability

Streak Length4dnegative streak
Robust Z-Score-3.49Deviation vs SPY
Reversion Probability74.2%Bayesian model
Underlying Spot$1743.20At order generation

2. Option Legs Architecture

Vertical credit spread contract specifications and execution fill marks

RoleContract SymbolStrikeOption TypeExpirationEntry PriceCurrent/Exit Price
Short LegASML261002P01590000$1590.00Call2026-10-02$52.00$6.40
Long WingASML261002P01515000$1515.00Call2026-10-02$26.90$1.40

3. Feasibility & Mean-Reversion Telemetry

Contextual stop-loss monitoring: required move to breakeven vs. remaining DTE expected volatility

Breakeven Line$1564.90Short strike minus credit
Move Needed to Win+0.00%In The Money
Expected Move (1σ)±5.98%Volatility over remaining DTE
Feasibility Ratio0.00x EMThreshold: ≤ 1.25x EM
Long Wing Barrier$1515.00Structural floor intact
Feasibility Rule Status: Feasible (Recovery Projected). The required move to breakeven (0.00%) represents only 0% of the statistical expected move over the remaining holding window, meaning mean reversion remains highly feasible.

4. Capital & Risk Allocation Economics

Detailed margin requirement, cash premium collected, maximum capped loss, and return on capital

Net Entry Credit$25.10Per share ($100/contract)
Upfront Cash Collected$2,510.001 contracts total
Gross Margin Required$7,500.00$75.00 spread width
Max Potential Risk$4,990.00Capped worst-case loss
Max Return on Capital50.3%Premium / Max Risk

5. Realized Outcome & Capital Preservation

Intraday management, stop-loss trigger, realized P&L, and downside capital shielded

Exit Fill Price$32.30 / sh$3,230.00 to close
Net Realized P&L$-720.00-28.7% of credit
Capital Preserved+$4,270.00Shielded vs full max loss
Resolution Triggerrisk rules satisfiedAutomated risk rule

Risk Management Note: This trade collected $2,510.00 upfront. When the spread widened, the position management system executed the stop-loss discipline, closing the spread at $32.30. This successfully eliminated tail risk and preserved $4,270.00 that was otherwise exposed under the full spread width.

6. Broker Execution Audit Trail

Alpaca paper trading order submissions and fills

Time (UTC)Order IDSideQtyLimit PriceStatus
15:46:45xpc-de836da236a6...sell_to_open1$29.52filled