Defined-Risk Structures

Buying a single option already caps your loss at the premium you pay. Spreads go a step further: they pair options so the best case and the worst case at expiration are both known when the position opens, as long as both legs stay in place and settle normally. That’s defined risk. The short leg also offsets part of the long leg’s time decay and sensitivity to implied volatility, which is one reason traders use spreads instead of single options. This lesson builds two structures that appear in almost every options course — the vertical spread and the iron condor — and shows how traders sometimes sketch them against the positioning map. It explains how the structures work; it isn’t a suggestion to trade them. All prices are hypothetical, and every figure is per spread, with one contract covering 100 shares.

Vertical spreads: debit and credit

Build the spread the other way around — sell the option closer to the money and buy one further out — and it pays you to open: a credit spread. A bull put spread sells the $575 put for $2.00 and buys the $570 put for $1.10, collecting a $0.90 credit, or $90. If SPY finishes above $575, both puts expire worthless and the $90 is the maximum profit. The maximum loss is the $5 width minus the credit: $4.10, or $410, at or below $570. Break-even is $575 − $0.90 = $574.10. The rules are short enough to memorize. Debit spread: maximum loss = debit; maximum profit = width − debit. Credit spread: maximum profit = credit; maximum loss = width − credit. Spreads whose short strike sits far from price tend to win more often and lose more when they lose; spreads that need price to move tend to be the reverse. That trade-off comes from where the strikes sit, not from paying or collecting: a bull put spread and a bull call spread on the same two strikes have nearly the same payoff.

Iron condor: two credit spreads around a range

An iron condor combines a bull put spread below price with a bear call spread above it, all in one expiration. It collects two credits and does best when price finishes between the two short strikes. At expiration price can only be beyond one side at a time, so with equal widths the maximum loss is one spread’s width minus the total credit. Because the structure has four legs, it pays the bid-ask spread four times on the way in, and possibly again on the way out. Why the positioning map comes up: in a Calm regime, dealer hedging tends to dampen moves, and price often rotates between the Floor and the Ceiling. So some traders compare a condor’s short strikes with those zones, and others place them a little outside the zones to leave a buffer. Many also check the range against the expected move: if options price about an $8 move by expiration, short strikes $10 away sit just outside it.

• Levels move and break. Zones can migrate during the day, and in a Volatile regime breaks of the Floor or Ceiling can run further. A range drawn at 9:35 a.m. ET may not describe 2:00 p.m. ET.
• The map and the trade can cover different days. StratosHedge builds its levels from the nearest expiration — 0DTE on most SPY days — so they describe today’s positioning. A week-long condor outlives the map it was sketched on, and a same-day condor with short strikes $10 away would collect far less than $1.20.
• Short legs can be assigned. SPY options are American-style, so a short leg can be exercised against before expiration (assignment), most often when little time value remains — for short calls, often the day before an ex-dividend date. If price finishes near a short strike at expiration, it can be hard to know whether assignment will happen. If a short leg is assigned and the long leg isn’t exercised, you can be left with a stock position, long or short — perhaps over a weekend — whose risk the spread no longer caps.
• Costs add up. At $0.05 of slippage per leg, a four-leg condor gives up $0.20, or $20, to open — a sixth of the $120 credit in the example.
• Known isn’t small. Defined risk means the worst case is known before the position opens. It can still be most of the money committed, and with 0DTE options a position can swing from near its maximum profit to near its maximum loss within minutes.