Schwab Strategy Scanner

Market data Schwab Market Data API

Symbol ⓘTarget Underlying AssetType any custom stock/ETF symbol or select a popular preset.Ex: $XSP, $SPX, SPY, SPCX, LOFF

Strikes / Side ⓘOption Chain Strike DepthNumber of strike levels fetched above and below spot for both Calls and Puts.Ex: 120 strikes loads ±120 strikes around market spot. Max 300.120 strikes

Fetch Start DTE ⓘStart Expiration HorizonMinimum days to expiration (DTE) from today to fetch contracts for.Ex: 0d fetches from today; 365d fetches starting 1 year out. Fetch End DTE ⓘEnd Expiration HorizonMaximum days to expiration (DTE) from today to fetch contracts for.Ex: 60d fetches up to 2 months; 1825d fetches up to 5 years (LEAPS).

Auto

DTE Range Presets:

Pricing, risk & margin: Natural is the marketable entry price (buys at ask, sells at bid); Mid uses each leg’s bid/ask midpoint. All 2-spread & 4-spread models are 100% defined-risk with exact FINRA / Reg-T strike-deficit collateral included in net Buying Power.

Strategy generator Defined-Risk 2-Spread (4L) & 4-Spread (8L) Modular Engine

Architecture ⓘModular Spread ArchitectureChoose 2-Spread (4-Leg) or 4-Spread (8-Leg) for fully customizable defined-risk multi-spread setups.Ex: 2-Spread creates Butterflies, Broken Wings, Condors, Diagonals, Ratios. Wing 1 Preset ⓘWing 1 PresetsQuickly load spread archetypes for Wing 1 (Spreads A & B).Ex: Call Butterfly, Iron Condor, Broken-Wing Fly. Max Results ⓘResult Display LimitLists this many rows above the spot price and this many rows below it, centered around the current underlying price.Ex: 5 rows → up to 5 below spot + 5 above spot = 10 total. Near Expiration Far Expiration

Spread A (Lower Wing) Put · Long Low · Near 3w · 1×

Type Long Strike Expiry

Width3 steps

Quantity1×

Inner Gap

0 steps

Gap 0 = Fly

Spread B (Upper Wing) Put · Long High · Near 2w · 1×

Type Long Strike Expiry

Width2 steps

Quantity1×

Scan Axis ⓘResult Variation DimensionChoose what varies across result rows. "Vary Strikes" iterates strike prices with fixed expiry. "Vary Expiry" iterates expiration dates with fixed strikes.Ex: Vary Expiry shows how the same spread looks at 7d, 14d, 21d, etc.

Vary StrikesVary Expiry

Pricing Basis ⓘFill Valuation ModelNatural uses marketable fill prices (Ask on buys, Bid on sells); Mid uses bid/ask midpoints.Ex: Natural factors in realistic market spread slippage.

Natural (Marketable)Mid (Midpoint)

Spread Widths ⓘSynchronize Spread WidthsWhen "Same Width" is selected, changing the width on any spread automatically synchronizes all other spreads to the same width value.Ex: Setting Spread A width to 10 sets Spreads B, C, and D to 10.

Independent Same Width (Synced)

Inner Gaps ⓘSynchronize Inner GapsWhen "Same Gap" is selected, changing the inner gap on Wing 1 (A↔B) automatically synchronizes Wing 2 (C↔D) to the same gap value.Ex: Setting Wing 1 gap to 0 sets Wing 2 gap to 0.

Independent Same Gap (Synced)

Chart X-Axis Range ⓘChart X-Axis View RangeSets the zoom range percentage around spot for the P/L curve preview and modal chart X-axis. Does not affect strategy max gain/loss or target calculations.Ex: ±1% sets the chart x-axis width to ±1% of spot.

Weekend Wt ⓘWeekend Decay WeightWeight assigned to weekend days (Sat/Sun) vs regular trading days (1.0). Default 15% (0.15) captures market-maker decay expectations while retaining macro weekend event risk.0% = pure trading days; 15% = market standard; 100% = calendar days. 15%

Holiday Wt ⓘHoliday Decay WeightWeight assigned to NYSE market holidays vs regular trading days (1.0). Default 15% (0.15).0% = pure trading days; 15% = market standard; 100% = calendar days. 15%

Every displayed row holds all strategy parameters fixed; only its strike anchor changes. Defined-risk 2-spread & 4-spread models calculate exact Reg-T collateral and capped loss.