LEAPS Builder — Margin Mode v6.2

IBIT | 2026-09-18 01:26:52
Per-chain Fortress comparison at a single normalized contract count. Two use cases: Stock replacement (Bucket A) and Moderate-bull (Bucket B). Best pick ★ = best return on max-loss, horizon-fitted to 1-2yr.

IBIT @ $43.51

Margin mode | NORMAL scoring | US RTH (live)

Stock replacement (1-2yr) (Bucket A) — 286 contracts/chain

Every chain's best Fortress sized to the SAME contract count for apples-to-apples capital / max-loss / margin comparison. Change the dropdown to resize. Tick up to 2 chains in the ☑ column to compare them side by side. Structure: + = bought (long), = sold (short). Click any BE & CC-Safe cell to open that chain's CC-Safe Strike card.

★ Score = (Weighted P&L ÷ Max Loss) × horizon-fit. Weighted P&L = expected expiry dollars across a weighted scenario basket. Moderate-bull basket (Bucket A weights): +25% carries the biggest weight, then +50% / +75%; flat and -20% count (they penalize high breakevens); +100% / +200% taper off — rewards stock-replacement structures that pay across the likely-bull range. ÷ Max Loss turns it into return-per-dollar-at-risk (capital efficiency, so a deeper/longer structure is not rewarded just for costing more). × horizon-fit peaks in the 1-2yr window (365-730 DTE) and tapers outside it, keeping the pick inside the thesis horizon. All three terms are size-invariant, so the ★ does not move when you change the contract count.

ChainStructure CtDelta Sh EqvIC MLMargin ThetaBE & CC-Safe PnL @ +100%
Jan '29 (854d) ★+$30C −$47P +$35P286+0.997/sh+28,506$456,170$799,370$410,213$-197/d
BE $46.48 (+7%)
CC-Safe
$+1,174,602

Margin = real IBKR portfolio (TIMS) maintenance margin from a whatIf order on the 3-leg open combo (BUY LC / SELL SP / BUY HP), the same engine TWS shows. This is the ongoing capital held; the one-time initial requirement to open is higher. Stored at the analyzed contract count and rescaled linearly by the dropdown (TIMS has mild concentration non-linearity, so verify the exact figure in TWS before sizing). For net-long Bucket A synthetics this runs well above the old Reg-T put-spread width, which ignored the long call's directional risk.

P&L Detail Panels

Jan '29 (854d) $30C/$47P/$35P × 286ct — P&L curve (-50% to +300%)
MoveStock at P&L (expiry)ROI on IC
-50%$21.75$-799,370-175%
-25%$32.63$-724,080-159%
+0%$43.51$-169,598-37%
+25%$54.39$+241,312+53%
+50%$65.27$+552,409+121%
+75%$76.14$+863,506+189%
+100%$87.02$+1,174,602+257%
+125%$97.90$+1,485,698+326%
+150%$108.77$+1,796,795+394%
+175%$119.65$+2,107,891+462%
+200%$130.53$+2,418,988+530%
+225%$141.41$+2,730,084+598%
+250%$152.28$+3,041,181+667%
+275%$163.16$+3,352,278+735%
+300%$174.04$+3,663,374+803%

Moderate-bull (1-2yr) (Bucket B) — 451 contracts/chain

Every chain's best Fortress sized to the SAME contract count for apples-to-apples capital / max-loss / margin comparison. Change the dropdown to resize. Tick up to 2 chains in the ☑ column to compare them side by side. Structure: + = bought (long), = sold (short). Click any BE & CC-Safe cell to open that chain's CC-Safe Strike card.

★ Score = (Weighted P&L ÷ Max Loss) × horizon-fit. Weighted P&L = expected expiry dollars across a weighted scenario basket. Convexity basket (Bucket B weights): +75% and +100% carry the biggest weight, +200% tail counted, downside (-20% / flat) lightly weighted — rewards OTM structures that pay big on a strong move. ÷ Max Loss turns it into return-per-dollar-at-risk (capital efficiency, so a deeper/longer structure is not rewarded just for costing more). × horizon-fit peaks in the 1-2yr window (365-730 DTE) and tapers outside it, keeping the pick inside the thesis horizon. All three terms are size-invariant, so the ★ does not move when you change the contract count.

ChainStructure CtDelta Sh EqvIC MLMargin ThetaBE & CC-Safe PnL @ +100%
Jan '29 (854d) ★+$43C −$50P +$45P451+0.777/sh+35,025$572,770$798,270$527,829$-406/d
BE $55.70 (+28%)
CC-Safe
$+1,412,532

Margin = real IBKR portfolio (TIMS) maintenance margin from a whatIf order on the 3-leg open combo (BUY LC / SELL SP / BUY HP), the same engine TWS shows. This is the ongoing capital held; the one-time initial requirement to open is higher. Stored at the analyzed contract count and rescaled linearly by the dropdown (TIMS has mild concentration non-linearity, so verify the exact figure in TWS before sizing). For net-long Bucket A synthetics this runs well above the old Reg-T put-spread width, which ignored the long call's directional risk.

P&L Detail Panels

Jan '29 (854d) $43C/$50P/$45P × 451ct — P&L curve (-50% to +300%)
MoveStock at P&L (expiry)ROI on IC
-50%$21.75$-798,270-139%
-25%$32.63$-798,270-139%
+0%$43.51$-775,269-135%
+25%$54.39$-59,194-10%
+50%$65.27$+431,382+75%
+75%$76.14$+921,957+161%
+100%$87.02$+1,412,532+247%
+125%$97.90$+1,903,107+332%
+150%$108.77$+2,393,682+418%
+175%$119.65$+2,884,258+504%
+200%$130.53$+3,374,833+589%
+225%$141.41$+3,865,408+675%
+250%$152.28$+4,355,984+761%
+275%$163.16$+4,846,559+846%
+300%$174.04$+5,337,134+932%