Daily Summary

CMCSA · Trade Economics

Closed · catastrophic debit cap

25x Bullish Put Credit Spread entered on Sep 23, 2026 with an expiration of 2026-10-09.

1. Setup & Quantitative Conviction

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

Streak Length8dnegative streak
Robust Z-Score-1.19Deviation vs SPY
Reversion Probability69.0%Bayesian model
Underlying Spot$22.61At order generation

2. Option Legs Architecture

Vertical credit spread contract specifications and execution fill marks

RoleContract SymbolStrikeOption TypeExpirationEntry PriceCurrent/Exit Price
Short LegCMCSA261009P00022500$22.50Call2026-10-09$0.61$2.84
Long WingCMCSA261009P00022000$22.00Call2026-10-09$0.41$0.39

3. Feasibility & Mean-Reversion Telemetry

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

Breakeven Line$22.30Short strike minus credit
Move Needed to Win+0.00%In The Money
Expected Move (1σ)±7.32%Volatility over remaining DTE
Feasibility Ratio0.00x EMThreshold: ≤ 1.25x EM
Long Wing Barrier$22.00Structural 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$0.20Per share ($100/contract)
Upfront Cash Collected$500.0025 contracts total
Gross Margin Required$1,250.00$0.50 spread width
Max Potential Risk$750.00Capped worst-case loss
Max Return on Capital66.7%Premium / Max Risk

5. Realized Outcome & Capital Preservation

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

Exit Fill PriceClosedActive
Net Realized P&LClosedResolved
Capital Preserved—Shielded vs full max loss
Resolution Triggercatastrophic debit capAutomated risk rule

Risk Management Note: This trade collected $500.00 upfront. When the spread widened, the position management system executed the stop-loss discipline, closing the spread at market. This successfully eliminated tail risk and preserved $0.00 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
19:45:14xpc-f0de98b9e721...sell_to_open25$0.28filled
15:45:14xpc-02cf9e4387b9...sell_to_open25$0.24filled