ZEBRA Strategy

ZEBRA is an acronym for 'Zero Extrinsic Back Ratio.' The name describes the strategy's goal: eliminate extrinsic (time) value while using a back ratio (2 long options to 1 short). The memorable name helps traders remember its key benefit - no time decay penalty.

ZEBRA provides similar directional exposure (delta ~100) but with less capital and defined risk. Stock at £7,750 can lose its entire value; ZEBRA at £385 can only lose £385. However, ZEBRA has an expiration date and doesn't pay dividends, while stock can be held indefinitely and receives dividends.

The 2:1 ratio is key to achieving approximately 100 delta (stock-equivalent exposure). Two deep ITM options at ~0.85 delta each = 1.70 delta. Selling one ATM at 0.50 delta leaves ~1.20 delta. This mimics owning the underlying. One deep ITM option would only give ~0.85 delta exposure.

You profit! Unlike some strategies that cap gains, ZEBRA has unlimited upside. Each £1 the underlying rises above your breakeven, you make approximately £1 (or £1.20 depending on exact delta). This is why ZEBRA is called a 'stock replacement' strategy.

ZEBRA is actually capital-efficient. While the debit might be £300-500, this provides exposure equivalent to owning £7,000+ of stock. You need enough for the debit plus a buffer for potential rolling. Compared to buying stock, ZEBRA requires much less capital for similar exposure.

Calculate it: (1) Find intrinsic value of long options (underlying - strike × 2), (2) Calculate total premium paid for longs, (3) Extrinsic in longs = Premium - Intrinsic, (4) Compare to short option premium received. If short premium ≥ long extrinsic, you've achieved zero extrinsic.

Roll when 60-90 DTE remaining, before significant time decay begins. With LEAPS (1-year options), you might roll annually. The key is to roll while the position still has minimal extrinsic value - rolling a position with significant extrinsic is more costly.

ZEBRA works best on liquid underlyings with active options markets and available long-dated options (LEAPS). Illiquid options will have wide bid-ask spreads making entry/exit expensive. Verify there's sufficient open interest and tight spreads before trading.

You can modify the ratio. A 3:2 ratio (3 long : 2 short) gives approximately 70-80 delta. Alternatively, trade a smaller position. You can also sell an additional call against a standard ZEBRA to reduce delta, though this adds complexity.

ZEBRA is less affected by IV crush than simple long calls because of its low vega. However, the underlying can gap, which affects ZEBRA like any directional position. If concerned about earnings, consider reducing position or waiting until after the announcement.

Put skew (elevated OTM put IV) typically helps Bearish ZEBRA construction. The ATM short put you sell has elevated IV, providing more premium to offset the long deep ITM put costs. This can make Bearish ZEBRA more capital-efficient than Bullish ZEBRA in markets with steep put skew.

Potentially yes. If you have a stock at a loss and want to crystallize the loss without losing exposure, you could sell the stock (realize loss) and immediately buy a ZEBRA. Since ZEBRA isn't 'substantially identical' to the stock, it may avoid the 30-day bed & breakfast rule. Consult a tax professional for specific guidance.

Treat ZEBRA delta like stock delta. If your ZEBRA has net delta of 1.20 and you have 1 contract, add 1.20 to your portfolio delta (or £1.20/point for FTSE). Include this in your total portfolio exposure calculation alongside actual stock positions and other options.

Target 0.80-0.90 delta, typically 150-250 points ITM for FTSE. Going too deep ITM (>0.95 delta) reduces liquidity and increases bid-ask spreads. Going too shallow (<0.75 delta) increases extrinsic and moves away from 'zero extrinsic' goal. The sweet spot balances high delta, low extrinsic, and adequate liquidity.

Yes. A 3:1 ratio (3 long : 1 short) creates approximately 150-180 delta - more exposure than owning the underlying. This amplifies both gains and losses. Risk is still defined (net debit) but the position is more aggressive. Use only with very high conviction and appropriate position sizing.