Options Strategy Analyzer

Options Strategy Analyzer

A disciplined, repeatable methodology for vetting an options trade before you click buy — or for picking the right structure given a market view. Most losing options trades aren't bad analysis of the underlying; they are a structure mismatch (long premium in a 70 IV-rank market, short premium in a 20 IV-rank market), a size mismatch (a 5% account-max-loss trade dressed up as a "small" position), or an assignment / liquidity surprise the trader never priced in.

The core skill is naming the structure precisely, computing the closed-form math (max profit, max loss, break-even, R:R), reporting the net Greeks (Δ, Γ, Θ, ν) and what they cost you per day, contextualizing with IV rank, estimating probability of profit honestly (with the "PoP ≠ EV" caveat), and enforcing the risk-management & operational checks that separate profitable short-premium operators from blown accounts.

Honest scope & limits — read this first.

I do not have a live options chain or quotes. I reason over what you provide: underlying ticker, current price, account size, strikes, expirations, implied volatilities, mids / credits / debits, and any existing legs. Without numbers, output is qualitative (structure selection + risk framing only). The math below is at expiration unless an intraday Greeks-based P&L is explicitly requested.

This is not investment advice. Options carry the risk of losing 100% of premium paid, and undefined-risk positions (naked short calls, short strangles, short straddles) can lose more than the cash deposited. Past win rates do not predict future results — a strategy with a historical 70% win rate can take a tail loss on its next trade. Use at your own risk and consult a qualified professional.

When to Activate

Activate when the user:

• Pastes an options trade structure (legs, strikes, expirations, credits / debits, IVs) and asks "is this a good trade?" or "what are my max profit / max loss / break-evens?".
• States a directional view (bullish / bearish / neutral) and a volatility view (IV high / low / neutral) and wants a strategy recommendation.
• Mentions any of: call, put, strike, expiration, DTE, IV / implied volatility, IV rank, IV percentile, debit, credit, spread, vertical, bull / bear call / put spread, iron condor, iron butterfly, strangle, straddle, calendar, diagonal, covered call, cash-secured put, short premium, long premium, theta, gamma, vega, delta, PoP, probability of profit.
• Asks about assignment risk, early exercise, an ex-dividend date, or managing an existing position (closing at a profit target, rolling, taking a tested side off).

You cannot fetch the chain. This skill reasons over what the user gives you. If you need strikes, IVs, mids, account size, or the user's view, ask for them (Step 1) — never invent prices, deltas, or volatilities.

Step 1: Intake & Scope

Establish exactly what you're analyzing before saying anything about edge.

1. Underlying & price. Ticker (and product type: equity, ETF, index, futures option), spot price, and lot size if not 100 (e.g. mini index options are 10×).
2. Account size. Total options-trading capital. Without this, you cannot enforce position sizing.
3. Directional view. Bullish / bearish / neutral — and time horizon (intraday / days / weeks / a cycle).
4. Volatility view. IV high (richly priced — sell), IV low (cheap — buy), neutral. Ideally with IV rank and IV percentile numbers.
5. Event calendar. Earnings, FOMC, dividends (ex-date), product launch, index rebalance — anything that can spike IV or jump the underlying inside your expiration window.
6. DTE preference. Short-dated (≤14 DTE — gamma-heavy, fast theta), monthly (~30–45 DTE — the credit-spread / iron-condor sweet spot), long-dated (LEAPS — vega-heavy, low theta).
7. Existing legs? Are we entering fresh, adjusting an existing position, or managing to an exit?

Do not proceed to a verdict until you know what the underlying is, what the view is, and what the structure is (or which structures you're choosing between).

Step 2: Strategy Selection — Direction × Volatility

The decision framework is directional view × volatility view, then defined vs undefined risk. Mark every candidate as defined or undefined, and give a one-line best when / worst when before picking.

• Defined-risk structures (all spreads, iron condor, iron butterfly): max loss is bounded and computable at entry. The width − credit (or the debit) is your worst case.
• Undefined-risk structures (naked short call, short strangle, short straddle): margin-intensive, real assignment risk, and loss can exceed the credit collected — for a short call the loss is theoretically unlimited on the upside.

Quick guide for the most-common picks:

• Bull-put credit spread — bullish, want short premium, high IV. Best when IV rank > 50 and you have a clear support level under the short put. Worst when IV is low (credits don't pay you for the downside).
• Iron condor — neutral, want short vega + short gamma. Best when IV rank > 50 and the underlying is rangebound with no event in window. Worst when IV is rising into a binary event you're holding through.
• Long call (or long put) — directional, want long gamma + long vega, cheap premium. Best when IV rank < 30 and a catalyst is coming. *Worst when* IV rank > 60 — you are overpaying for vol that will compress.
• Covered call — bullish-to-neutral on a long stock position you already hold; income against a cap. Best when IV rank > 40 and the strike is at your willing-to-sell price. Worst when the stock is set to run hard (you cap the upside) or to crash (the small premium doesn't hedge you).
• Short strangle — neutral, want short vega, accepting undefined risk and margin requirement. Best when IV rank > 60 in a liquid, rangebound underlying with no events. Worst when a gap blows past your short call or short put — losses can be many multiples of the credit.

Step 3: Math — Compute the Trade

For the chosen structure, output a Math table: net debit / credit, max profit, max loss, break-even(s), R:R (max profit ÷ max loss), and width for spreads. If a number is missing, compute symbolically and ask for the missing input. Always show the formula, then plug in numbers.

Bull-put credit spread

Sell put at strike K_short, buy put at strike K_long, with K_long < K_short. Per-share credit C. Width W = K_short − K_long.

Max profit  = C
Max loss    = W − C
Break-even  = K_short − C
R:R         = C / (W − C)

(P&L per contract = the per-share figure × 100 for standard US equity options.)

Bear-call credit spread

Sell call at K_short, buy call at K_long, with K_long > K_short. Per-share credit C. Width W = K_long − K_short.

Max profit  = C
Max loss    = W − C
Break-even  = K_short + C
R:R         = C / (W − C)

Iron condor (equal-wing)

Short put K_sp, long put K_lp, short call K_sc, long call K_lc — with K_lp < K_sp < K_sc < K_lc. Net credit C. Wing width W = K_sp − K_lp = K_lc − K_sc (assume equal wings).

Max profit      = C                 (when K_sp ≤ S ≤ K_sc at expiry)
Max loss        = W − C             (when S ≤ K_lp or S ≥ K_lc)
Break-evens     = K_sp − C  and  K_sc + C
R:R             = C / (W − C)

(Unequal wings — the "broken-wing" condor — change max loss to max(put_width, call_width) − C. Flag this if the user constructs asymmetric wings.)

Long call

Buy call at strike K for per-share debit D.

Max profit  = unlimited (theoretical)
Max loss    = D
Break-even  = K + D

Long put

Buy put at strike K for per-share debit D.

Max profit  = K − D                 (if S = 0 at expiry)
Max loss    = D
Break-even  = K − D

Covered call

Long 100 shares of underlying at cost basis S₀, short one call at strike K for per-share premium P.

Max profit  = (K − S₀) + P          (if S ≥ K at expiry — called away)
Max loss    ≈ S₀ − P                (large; the downside of holding the stock,
                                     buffered only by the small premium)
Break-even  = S₀ − P

The covered call is a bullish-to-neutral, capped-upside structure. The "max loss" line is intentionally large — owning stock is the dominant risk; the premium is a small income buffer, not a hedge.

Short strangle (undefined risk)

Sell put at K_sp, sell call at K_sc, with K_sp < K_sc. Per-share net credit C (sum of the two premia collected).

Max profit  = C                     (when K_sp ≤ S ≤ K_sc at expiry)
Max loss    = theoretically unbounded on the call side
              (and very large on the put side, down to S = 0)
Break-evens = K_sp − C  and  K_sc + C
Margin      = broker formula (~20% × underlying for short call side,
              minus OTM amount; check your broker)

A short strangle's max profit line is the entire compensation; the max loss line is the reason it requires margin, position-size discipline, and a plan for a managed exit before a tail event.

R:R note. For credit spreads, R:R is mechanically poor (you are paid small to take a defined-but-larger risk). The right framing is not "is R:R

1?" — it's whether the probability of profit and your management plan together make the expected value positive after fees.

Step 4: Greeks at Entry

For each leg, list Δ (sign and magnitude). Then report the net position Greeks with sign and rough magnitude per 1-contract structure.

Conventions:

• Δ is also a rough proxy for P(ITM at expiry) under the option's implied distribution — useful for strike selection (e.g. a 16-delta short strike ≈ a 1σ move).
• You cannot have positive Γ without negative Θ. Long options buy convexity (Γ) and vol exposure (ν) and pay time (Θ). Short options collect Θ and pay both Γ and ν. A "free" Greek combination doesn't exist.
• Γ explodes near expiry, especially ATM — this is gamma risk for short premium, and the reason monthly cycles are typically managed by 21 DTE.

Report Θ as a per-day number ("≈ +$X / day at entry, all else equal") and ν as a per-1-vol-point number ("≈ −$Y per +1 IV point"). If the user hasn't given Greeks, state the signs and ask for magnitudes only if needed.

Step 5: IV Context

If IV rank or IV percentile is provided, apply the volatility heuristics — IV is the most under-used input in retail options decisions.

• IV rank = (current IV − 52-week min IV) / (52-week max − min). 0..100.
• IV percentile = % of days in the lookback with IV below current. 0..100.

Rules of thumb (from the research):

• IV rank > 50 → favorable regime for selling premium (richer credits; vol tends to mean-revert lower). Credit spreads, iron condors, short strangles get paid more.
• IV rank < 30 → favorable regime for buying premium (cheaper options; vol may expand). Long calls / puts / debit spreads have better entry cost.
• 20 < IVR < 50 → no edge from vol regime; the trade must stand on directional / structural merit alone.

Two refinements when relevant:

• Vol skew / smile. In equity index options, OTM put IV is typically higher than OTM call IV ("put skew"). This matters for strangles and iron condors — your put-side credit is naturally richer than the call-side credit at equal deltas, and your put-side risk is correspondingly larger.
• Term structure. Front-month vs back-month IV. Contango (back > front) is normal. Backwardation (front > back) usually signals an event in the front cycle (earnings, macro) and is a warning for calendars and diagonals — the short-vol leg can blow up at the event.

Step 6: Probability of Profit & Expected Value

Estimate probability of profit (PoP) honestly, and state the caveat in the same breath.

For a short-premium trade (one short option):

PoP ≈ 1 − |Δ_short|

(Delta-as-probability heuristic. A 25-delta short strike → ≈ 75% PoP.)

For a defined-risk credit spread:

PoP ≈ 1 − (Max loss / Width) = 1 − (W − C) / W = C / W

(The premium-implied probability that price stays past the short strike at expiry. Both estimates should agree to within a few points; if they don't, report both and note the divergence.)

For an iron condor (two-sided short premium), PoP is approximately:

PoP ≈ 1 − (|Δ_short_put| + |Δ_short_call|)

(Both wings need to stay OTM; the failure probabilities add.)

PoP ≠ EV — say this every time. These estimates are the option chain's premium-implied probabilities. If implied volatility is fair, the expected value of a short-premium trade is ≈ 0 before fees and slippage. A 90% PoP trade with a 9× downside is not edge — it is risk transfer, and if IV is honestly priced you are not being overpaid for it. Reported historical win rates (e.g. "65–70% on credit spreads") describe a win rate, not an edge: a single tail loss can eat many winners.

What this means in practice:

• Don't equate high PoP with a good trade. Pair it with R:R and IV rank to judge whether you are being paid for the risk.
• The skew tilt is real. Equity index put-side strikes are premium-rich because the market structurally fears down-gaps; sellers can be compensated for that risk, but they own that risk.

Step 7: Risk Management & Operational Checks

These rules separate operators from blow-ups. Run all of them every trade.

Position sizing

• Compute max loss as a percentage of account. position_size_% = max_loss_per_contract × contracts / account_size.
• Flag any single trade > 1–2% account max loss. Most short-premium desks size at ≤ 1–2% per defined-risk trade, and well under 5% even for undefined-risk structures.
• Kelly fraction: if applied at all, use at most ½ Kelly — full Kelly assumes your edge estimate is exactly right, and a wrong edge estimate produces dramatic drawdown.

Trade management — short premium

• Take profits at 25–50% of max profit. A credit spread that has earned half its credit has already realized most of the easy theta with most of the gamma risk still to come. Closing early raises annualized return on capital.
• Manage at 21 DTE for monthly cycles. Inside 21 DTE, gamma risk outweighs the remaining theta. Roll the position to the next cycle, take it off, or take the untested side off and let the tested side run with a defined hard stop.
• Defend the tested side, not the winning side. Rolling the unbreached wing closer is often a fool's game — it adds risk to a side that wasn't in trouble.

Trade management — long premium

• Take partials on a directional move. Long calls / puts can give back all of their gain in days as Θ accelerates near expiry. Scale out into strength.
• Cut losers fast. A long-premium trade that's wrong and bleeding theta is a worsening situation; do not turn it into a hope-trade.

Assignment & dividend risk

• ITM short calls going into an ex-dividend date are an early-exercise risk — the holder of the long call can exercise the day before the ex-date to capture the dividend. If your short call has less extrinsic value than the dividend, expect to be assigned.
• American-style options (most US equity / ETF options) can be exercised any day. Index options (SPX, NDX, RUT) are European — exercise only at expiry — and cash-settled, removing assignment risk at the cost of PM-settlement (SPX AM vs PM) timing nuance.
• Pin risk — being short an option that finishes within pennies of the strike at expiry can leave you with an unexpected stock position Monday.

Liquidity check

• Bid-ask spread. Reject a structure whose mid-to-spread is wide: as a rule of thumb, bid-ask spread > 10% of the mid is illiquid for retail. A $0.20-wide market on a $1.00 credit gives up ~$20 of edge per contract at entry and another $20 at exit — that's your week's profit.
• Open interest. A few hundred OI is functional for entry; a few contracts is not. Stale OI ≠ live liquidity — check today's bid-ask too.

Margin

• For undefined-risk structures (naked short calls, short strangles), the broker's margin requirement (~20% of underlying notional minus OTM amount, plus the premium received — varies by broker) is your real capital commitment, not the credit. Size against margin, not against max-loss-of-credit.

Step 8: Red-Flags Scan

Any one of these flips the trade toward 🟠 / ⛔.

• Selling premium in low IV (IVR < 20). Minimal credit, asymmetric loss — the trade is structurally underpaid.
• Buying premium in high IV (IVR > 70). You are overpaying for vol that is likely to compress on top of any directional move you need.
• Naked short call without a directional thesis. Unlimited upside risk for finite credit. Never structural; always tactical.
• Earnings / FOMC / macro event crossing the expiration without an explicit volatility plan. Implied vol rises into the event and crushes after — short-premium positions held through the event can earn the vol crush, but only if you've sized for the gap and decided in advance whether you'll hold or close.
• DTE mismatch. Too short for the expected move (gamma risk dominates theta), or too long for the catalyst (capital-inefficient; vol decay hurts the long-premium side).
• Position size > 2% of account max loss. Most blow-ups are sizing failures, not analysis failures.
• Illiquid options. Bid-ask > 10% of mid, or open interest near zero. You will pay 2× spread to round-trip.
• High PoP, terrible R:R. A 90% PoP / 0.11:1 R:R credit spread looks amazing on the win column and ugly on the math — the single loss eats 9 wins. Don't conflate PoP with edge.
• Defined-risk size that's larger than the account "wants" if assigned. For cash-secured puts / covered calls / spreads that can pin to a stock position, ensure the assigned position is one you'd actually hold or short.

Step 9: Output Format — the Trade Memo

Lead with a verdict banner, then the math, Greeks, IV context, PoP, management plan, and red flags. Close with the disclaimer.

Verdict banner (pick one)

• ✅ Recommended — structure fits the view, IV context aligned, defined risk within size limits, no red flags. State the one reason it works.
• 🟡 Acceptable with caveats — the trade is reasonable but one or two inputs are weak (IV regime borderline, R:R thin, marginal liquidity). State the caveats — fix or accept.
• 🟠 Reconsider — a meaningful issue is present (structure mismatched to IV regime, oversized, event in window without a plan). State the issue and the better alternative.
• ⛔ Avoid — a hard red flag is present (naked short call without thesis, IVR < 20 short premium with rich downside, > 5% account max loss, illiquid). State the reason in one line.

Strategy summary

• Structure: name + legs (strike + side + expiration for each).
• Net debit / credit: signed per-share + per-contract.
• DTE.
• Defined or undefined risk.

Math table

Greeks table

IV context

• IV rank / percentile (if given) + regime call (sell / neutral / buy).
• Skew note if relevant.
• Term-structure note if calendar / diagonal.

Probability of profit

• PoP estimate + the formula used.
• "PoP is the premium-implied probability, not edge. If IV is fair, EV ≈ 0 before fees."

Risk-management plan

• Position size: max_loss × contracts / account_size = …%. PASS / REDUCE TO N CONTRACTS.
• Profit target: close at 25–50% of max profit (short premium) or scale out (long premium).
• Time-stop: manage at 21 DTE for monthlies; or define hard time-stop.
• Assignment risk: flag ITM short calls into ex-div, American-style early-exercise risk.
• Liquidity: bid-ask vs mid, OI sanity.
• Margin requirement for undefined-risk structures.

Red flags found

Bulleted; if none, say so.

Disclaimer (always include)

Educational analysis — not investment advice, not a recommendation to trade, and not a guarantee of outcome. Options can lose 100% of premium paid, and undefined-risk positions can lose more than the cash deposited. Past win rates do not predict future results, and the probability estimates above are the option chain's premium-implied probabilities, not measures of edge. This analysis reasons only over the information you provided; it cannot see live quotes, the live chain, or live IV. Verify all numbers in your broker before entering. Consult a qualified, licensed financial professional for personal investment decisions.

Related Viprasol Skills

• trading-strategy-review — pitfalls of backtests behind any options-strategy claim (look-ahead bias, overfit, survivorship, slippage, risk-of-ruin).
• risk-management-review (sister skill, coming next) — portfolio-level sizing, Kelly fraction, drawdown control, and correlation across positions.

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