RBLX · Trade Economics

Closed · long wing breached

25x Bullish Put Credit Spread entered on Sep 28, 2026 with an expiration of 2026-10-16.

1. Setup & Quantitative Conviction

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

Streak Length4dnegative streak

Robust Z-Score-3.12Deviation vs SPY

Reversion Probability76.2%Bayesian model

Underlying Spot$42.72At order generation

2. Option Legs Architecture

Vertical credit spread contract specifications and execution fill marks

Role	Contract Symbol	Strike	Option Type	Expiration	Entry Price	Current/Exit Price
Short Leg	`RBLX261016P00045000`	$45.00	Call	2026-10-16	$3.20	$3.90
Long Wing	`RBLX261016P00043000`	$43.00	Call	2026-10-16	$2.32	$2.36

3. Feasibility & Mean-Reversion Telemetry

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

Breakeven Line$44.12Short strike minus credit

Move Needed to Win+3.29%+$1.40 to BE

Expected Move (1σ)±8.02%Volatility over remaining DTE

Feasibility Ratio0.41x EMThreshold: ≤ 1.25x EM

Long Wing Barrier$43.00Wing breached

Feasibility Rule Status: Feasible (Recovery Projected). The required move to breakeven (3.29%) represents only 41% 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$0.88Per share ($100/contract)

Upfront Cash Collected$2,200.0025 contracts total

Gross Margin Required$5,000.00$2.00 spread width

Max Potential Risk$2,800.00Capped worst-case loss

Max Return on Capital78.6%Premium / Max Risk

5. Realized Outcome & Capital Preservation

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

Exit Fill Price$1.54 / sh$3,850.00 to close

Net Realized P&L$-1,650.00-75.0% of credit

Capital Preserved+$1,150.00Shielded vs full max loss

Resolution Triggerlong wing breachedAutomated risk rule

Risk Management Note: This trade collected $2,200.00 upfront. When the spread widened, the position management system executed the stop-loss discipline, closing the spread at $1.54. This successfully eliminated tail risk and preserved $1,150.00 that was otherwise exposed under the full spread width.

6. Broker Execution Audit Trail

Alpaca paper trading order submissions and fills

Time (UTC)	Order ID	Side	Qty	Limit Price	Status
15:45:46	`xpc-db3282e6690b...`	sell_to_open	25	$1.13	filled