Daily Summary

PTC · Trade Economics

Closed · stop loss

25x Bullish Put Credit Spread entered on Sep 8, 2026 with an expiration of 2026-09-18.

1. Setup & Quantitative Conviction

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

Streak Length6dnegative streak
Robust Z-Score-2.09Deviation vs SPY
Reversion Probability80.8%Bayesian model
Underlying Spot$141.00At order generation

2. Option Legs Architecture

Vertical credit spread contract specifications and execution fill marks

RoleContract SymbolStrikeOption TypeExpirationEntry PriceCurrent/Exit Price
Short LegPTC260918P00135000$135.00Put2026-09-18$4.10$6.40
Long WingPTC260918P00130000$130.00Put2026-09-18$3.70$2.70

3. Feasibility & Mean-Reversion Telemetry

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

Breakeven Line$134.60Short strike minus credit
Move Needed to Win+0.00%In The Money
Expected Move (1σ)±6.97%Volatility over remaining DTE
Feasibility Ratio0.00x EMThreshold: ≤ 1.25x EM
Long Wing Barrier$130.00Structural 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$0.40Per share ($100/contract)
Upfront Cash Collected$1,000.0025 contracts total
Gross Margin Required$12,500.00$5.00 spread width
Max Potential Risk$11,500.00Capped worst-case loss
Max Return on Capital8.7%Premium / Max Risk

5. Realized Outcome & Capital Preservation

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

Exit Fill Price$3.70 / sh$9,250.00 to close
Net Realized P&L$-8,250.00-825.0% of credit
Capital Preserved+$3,250.00Shielded vs full max loss
Resolution Triggerstop lossAutomated risk rule

Risk Management Note: This trade collected $1,000.00 upfront. When the spread widened, the position management system executed the stop-loss discipline, closing the spread at $3.70. This successfully eliminated tail risk and preserved $3,250.00 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
17:25:50xpc-ff0a1e8f1603...sell_to_open25$1.83filled