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Jade Lizard: Payoff, No-Upside-Loss Test, and Risks

Learn how a jade lizard combines a short put and bear call spread, how to test the no-upside-loss condition, and why substantial downside and assignment risk remain.

Updated

For educational purposes only; not investment advice. Investing may result in loss.

Direct answer

A short jade lizard combines a short put and a bear call credit spread in the same underlying and expiry. It is usually entered for a net credit and expresses a neutral-to-moderately-bullish view. The position has no upside loss at expiration only if the executable total credit, net of per-share costs, is at least the width of the call spread. A smaller credit leaves a defined upside loss. Either way, the short put retains substantial downside and assignment risk, so the whole position is not defined-risk.

Three-leg payoff and no-upside-loss test

Let the short-put strike be K_P, short-call strike K_C, long-call strike K_L, and net credit c per share, with K_P<K_C<K_L. The call-spread width is w=K_L-K_C. Ignoring costs, expiration profit per share is S_T-K_P+c below K_P, c from K_P through K_C, c-(S_T-K_C) between K_C and K_L, and c-w at or above K_L.

Maximum profit is c×multiplier, earned when expiration is between K_P and K_C. The downside breakeven is K_P-c; if a stock reaches zero, theoretical maximum loss is (K_P-c)×multiplier. No upside expiration loss requires c≥w; after commissions and fees, use the credit retained after those costs. This test concerns expiration payoff only. Before expiration, spot, implied volatility, skew, time, rates, dividends, liquidity, and broker margin rules all affect the position.

The $95 put and $105/$110 call-spread example

With the stock near $100, sell the $95 put for $3.20, then sell the $105 call and buy the $110 call for a $2.10 net credit. Total credit is $5.30, exceeding the $5 call width by $0.30 per share.

  • Maximum profit between $95 and $105: $5.30×100=$530.
  • Profit at or above $110: ($5.30-$5)×100=$30.
  • Downside breakeven: $95-$5.30=$89.70.
  • Theoretical loss if the stock reaches zero: $89.70×100=$8,970.

At $90 expiration, the short put has $5 of intrinsic value and P&L is ($5.30-$5)×100=$30. At $80, its intrinsic value is $15 and P&L is ($5.30-$15)×100=-$970. The $30 result at $90 and above $110 illustrates why the small upside cushion should not be confused with balanced risk.

Pre-trade checklist and risks

  • Enter and monitor all three legs as one package where possible; legging can create an uncovered short option or unintended Delta.
  • Confirm underlying, expiry, strikes, quantities, multiplier, exercise style, and settlement before submitting the order.
  • Use an executable package price, not stale midpoint sums. Recheck that credit after fees still meets the c≥w test.
  • Calculate the downside breakeven, stock-at-zero loss, buying-power requirement, and cash needed to accept 100 shares per short put.
  • Size from a severe short-put stress loss, not from credit received, probability of profit, or the small upside cushion.
  • Stress price gaps, implied-volatility and skew changes, wider Bid/Ask spreads, earnings, corporate actions, trading halts, and market-wide selloffs.
  • A rally can still show an interim loss if the put retains extrinsic value while the call spread approaches its width, or if package quotes become poor.
  • An American-style short put may be assigned early and create long stock plus a cash obligation. A short call can also be assigned, particularly near an ex-dividend date.
  • The long call caps the call spread’s expiration value but does not hedge a stock decline or guarantee simultaneous processing after assignment.
  • Define profit-taking, downside exit, adjustment limits, and expiration instructions before entry. A roll closes one position and opens another; it does not erase a loss.

Common misconceptions

  • “No upside loss means no risk.” The short put can lose nearly its strike less the credit per share if the stock reaches zero.
  • “Every jade lizard has no upside loss.” The executable credit after costs must be at least the call-spread width.
  • “The credit received is maximum loss.” It is maximum profit in the center; downside loss can be far larger.
  • “The long call protects both sides.” It limits the call spread only and provides no downside hedge for the put.
  • “A bullish move cannot hurt before expiration.” Remaining put value, volatility, skew, spreads, and assignment can change current P&L and account exposure.
  • “It is a covered call without shares.” There is no long stock at entry, and the cash flows and downside exposure differ.
  • “High probability of profit proves positive expectancy.” Payoff size, gaps, costs, and estimation error still determine results.

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