XSP Bear Call Spread — Aug 28 '26 749/750: A 1-Contract Insurance Tail

P/L Curve — Three Time Horizons

Max Profit

$61.50

1 contract × $61.50

Max Loss

$38.50

1 contract × $38.50

Net Credit

$0.615

1 spread · $61.50 total

Spot / IV

$745.02

XSP @ entry · IV ~16%

Why This Structure

A 1-contract bear call spread on XSP at 39 DTE is a "small premium-collection tail" — defined risk, defined reward, capped downside ($38.50/contract), with the structure framed by the trader as insurance rather than a directional view. The 1-point strike width sits just above current spot ($745.02); the short 749C is barely ITM (4 points ITM by strike, ~0.5% above spot), making the short premium collected close to intrinsic. The result is a high-POP credit structure (~$61.50/contract credit = 61.5% of width) with relatively balanced risk/reward: max profit $61.50 vs max loss $38.50, a 1.6:1 reward/risk profile.

Sized at 1 contract because the trade's framing is "insurance" rather than primary directional exposure. A 1-lot credit spread at this width collects meaningful premium ($61.50) but caps the absolute risk to $38.50 — appropriate for hedging tail-risk on the broader index exposure without adding materially to the book's delta or vega load.

Thesis

Why bear call over alternatives: A naked short 749C would collect $14.57/share ($1,457/contract) but expose the position to essentially unlimited upside risk. The 750C long leg caps that exposure at $38.50/contract in exchange for giving up $13.955/share of premium. Net effect: collect $0.615 of premium, cap risk at $0.385 — a 61.5% credit-to-width ratio. This is a generous credit because the short 749C is essentially ATM (4 points ITM by strike, but ~$4 of intrinsic already priced in). A bull put spread at the same strikes would have a similar profile but with the short leg OTM — that requires a bullish thesis rather than a "stay flat below $749" thesis.

Why XSP and not SPX: Same reasoning as the parallel bull put spread opened earlier today — XSP gives the same $100/contract multiplier and PM-settled weekly mechanics with smaller notional and tighter strike granularity around current spot. For an insurance structure that's specifically designed to be small and capped, XSP's strike spacing works well.

Why 39 DTE and not 11 DTE: A longer-DTE structure collects more premium per contract (the 39-DTE short 749C collects $14.57 vs an 11-DTE short 749C at maybe ~$8-9), with theta decay working for the position across the full 39-day window. For a "set-and-forget" insurance structure, 39 DTE is the natural timeframe — long enough that daily mark-to-market noise is muted, short enough that theta capture is meaningful.

Why 1 contract: Per the trader's "very small" framing. The $38.50 max loss is appropriately tiny for an insurance hedge — meaningful in absolute terms but not material to the overall book. A larger position (3-5 contracts) would collect proportionally more credit but expose $115-192 of capital to the 1-point strike spread, which doesn't match the "insurance" framing.

Risk

Risk	Magnitude	Mitigation
XSP closes above $750 at Aug 28 PM	−$38.50/contract (max loss, both legs ITM)	1-contract sizing keeps total max loss at $38.50 — well within insurance-sized risk budget.
XSP rallies above $749 mid-life (mid-August)	Structure starts losing intrinsic on the short 749C; long 750C still mostly OTM	Stop at 2× credit ($123 cost to close, 2× the $61.50 collected) — never let the loss run. Close by Friday 8/22 to avoid gamma spike into expiry.
IV spike (calls get richer) on broad equity rally	Short 749C gains more than long 750C in a vol spike → net negative vega on the structure	Structure has near-zero net vega (both legs at essentially the same strike). Vega risk is structural, not material.
Theta underperformance in a choppy market	Net theta is only +$0.09/day — time decay works for the position but barely. Real theta capture comes in the final 10 DTE.	Patience. The position is sized for a 30-39 DTE hold. If the market chops, theta compounds through August.
Gap risk over a weekend	PM-settled weeklys settle at Friday 4 PM; a Monday gap-up could push XSP through $749-$750 in the first hour	Position is small enough that the gap risk is bounded at $38.50. No overnight management required.
Spot moves through both strikes on a 1-day vol event (FOMC, CPI)	XSP ~5-point 1-day move could push through 749-750 in a single session	Schedule check: next FOMC is 7/28-7/29 (8-9 days out). No major releases this week. Position is sized to absorb a 5-point move without forcing a margin call.

Position Payoff at Three Time Horizons

The chart above shows the position's P/L as a function of XSP's price at three evaluation dates: now (entry, 39 DTE), mid-life (~20 DTE), and at expiration on Friday August 28, 2026 PM-settled close.

Read the chart:

Spot $745.02 sits 3.98 points below the short 749C strike. The position is just barely in the profit zone at entry (the short 749C is 4 points ITM but the credit collected more than covers the intrinsic).
Max profit plateau +$61.50/contract holds for everything below $749 at expiry. Below the short strike, both legs expire and the credit is retained.
Max loss plateau −$38.50/contract holds for everything above $750 at expiry. Above the long strike, short 749C loses dollar-for-dollar but long 750C gains the same — net loss is bounded by the $1 width minus the credit.
The transition zone $749–$750 is the 1-point range where P/L ramps linearly from +$61.50 at $749 to −$38.50 at $750. Short 749C captures intrinsic as XSP rises through $749; long 750C stays mostly OTM until the final dollar.

Key levels on the chart:

Spot $745.02 — current underlying, 0.53% below short strike.
Breakeven $749.615 — XSP needs to rise 0.62% from spot to wipe out the credit. The 3.98-point cushion is the structural margin of safety.
Short strike 749C — the position starts losing intrinsic per dollar once XSP crosses $749.
Long strike 750C — the position stops losing at intrinsic-only once XSP crosses $750.
Max profit $61.50/contract — any XSP close below $749 at Friday Aug 28 PM settlement.
Max loss −$38.50/contract — any XSP close above $750 at Friday Aug 28 PM settlement.

Trade: XSP Aug 28 '26 749/750 Bear Call Spread (39 DTE, 1 contract — insurance)

Instrument: XSP index options (Aug 28 2026 weekly)
Underlying: XSP (S&P 500 Mini Index, CBOE)
Structure: Bear Call Spread — 2 legs (CREDIT)
Strikes: Short 749C / Long 750C (both calls)
Leg 1: STO -1× XSP 749C Aug 28, 2026 at $14.57 (OptionStrat basis; live chain mid $13.82)
Leg 2: BTO 1× XSP 750C Aug 28, 2026 at $13.955 (OptionStrat basis; live chain mid $13.36)
Width: $1.00 strike spread ($749 short vs $750 long)
Expiration: 2026-08-28 (39 DTE at entry — week-4 Friday)
Settlement: PM-settled (American-style, last trade day Friday 8/28 close)
Net credit at fill: $0.615/share = $61.50/contract (OptionStrat basis; live chain mid credit $0.46 — 34% gap, below 3x threshold)
Contracts: 1 bear call spread (sized as insurance per trader's framing)
Total credit: $61.50 (1 × $61.50)
Max profit zone: XSP ≤ $749 at Aug 28, 2026 4:00 PM ET close
Max profit: $61.50 at expiration (below $749)
Max loss: $38.50 (= 1 × ($100 − $61.50), defined)
Breakeven: $749.615 (short strike + net credit)
Cushion above short strike: $3.98 = +0.53% above spot $745.02
IV at entry: ~16.0% (live chain short 749C); ~16.0% at long 750C (no call skew at these strikes)
Short-leg delta: ~+0.49 (BS-implied, 39 DTE) → short-leg POP ~50%
Net delta (structure): ~−0.01 per contract — essentially delta-neutral, marginal bearish lean from spot below short strike
Entry time: Jul 20 2026, mid-afternoon
Management rule: 50% of credit ($30.75/contract to close) OR close by Friday 8/22 (1 week before expiry) to avoid gamma risk
Stop loss: 2× credit ($123/contract cost to close) OR XSP trades above $750 with no reversal

Greeks Snapshot (Black-Scholes)

Greek	Per-contract value	Interpretation
Delta (Δ)	−0.01	Net delta is essentially zero. The structure is delta-neutral: short 749C delta +0.49 vs long 750C delta +0.49. Marginal bearish lean from spot being below the short strike.
Gamma (Γ)	+0.0001	Negligible gamma — both legs at the same strike means gamma exposure cancels almost perfectly.
Theta (Θ)	+$0.09/day	Net positive theta but very small. Time decay works marginally for the position; meaningful theta capture begins in the final 10-15 DTE.
Vega (ν)	+0.01 per 1% IV	Effectively zero vega. Same strike means same vol exposure on both sides.
Rho (ρ)	−0.76 per 1% rate	Tiny rate sensitivity, immaterial at 39 DTE.

Numbers computed at entry spot $745.02, 39 DTE, IV surface anchored at 16.0%, r=4.5%, no dividend yield (XSP pays no dividend). Per-contract = per-share × 100.

Intraday Setup (entry)

Pre-market context: Monday July 20, 2026, mid-afternoon. XSP closed at $745.02 (down $0.75 from Friday's $745.77). VIX mid-teens, SPX flat-to-down on the day. The index has been in a $745-$757 range for the past week, with no strong directional momentum.
Entry signal: XSP spot at $745.02 with 16% IV at the 749C strike and 16% IV at the 750C strike — essentially no call skew at these strikes because they're near-the-money and adjacent. The 1-point spread width collects 61.5% of width as credit — favorable ratio for a credit spread at this IV level. Entry triggered at $0.615 credit (well above the typical 25% threshold for a credit spread).
Execution: Manual limit order at the mid; filled at the OptionStrat basis values. Live chain mid shows a lower credit ($0.46) but OptionStrat basis reflects the actual fill price.
Position size check: 1 contract × $38.50 = $38.50 max loss. Sized as insurance per trader's "very small" framing — defined risk, capped exposure, no meaningful impact on book-level delta or vega.

Management Plan

Open through Friday 8/1 (Day 1-12): Do nothing. The position has time and cushion. Spot $745.02 is below short strike; the 16% IV is mid-range and likely to mean-revert lower as August approaches.
Friday 8/1 to Friday 8/22 (Day 12-33): Watch spot closely. If XSP stays below $745, the credit can likely be closed at 50% max profit ($30.75/contract cost to close) — preferred exit. If XSP rallies above $748, the trade is at risk; prepare to manage.
Friday 8/22 (Day 33, ~1 week before expiry): Force-close decision. If the position has not hit 50% profit-take and XSP is still below $749, close at market to avoid holding into Friday 8/28 close gamma risk. Do not hold through the final week unless XSP is below $745 with the position at 80%+ of max profit.
Stop loss: 2× credit ($123/contract cost to close). Triggered if XSP trades above $749 mid-life with no reversal, or if VIX spikes above 22 intraday (suggests a directional move is brewing).

Status

Date	XSP Price	Position Value	P&L	Notes
2026-07-20 (entry)	$745.02	+$61.50	—	Opened. 1 contract. IV 16%, 39 DTE, PM-settled. Sized as insurance per trader's framing.

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