ZEBRA Strategy

Options Spreads Advanced Singapore STI DBS OCBC UOB SINGTEL KEPPEL CAPLAND

Directional - Bullish (Call ZEBRA) or Bearish (Put ZEBRA)

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Quick Reference

Strategy Type Synthetic Stock Position (Zero Extrinsic Back Ratio)
Market Outlook Directional - Bullish (Call ZEBRA) or Bearish (Put ZEBRA)
Risk Profile Limited to debit paid (defined risk)
Reward Profile Unlimited profit potential (like stock)
Time Horizon 60-120 DTE recommended (longer duration)
Iv Environment Low to moderate IV preferred (minimizes extrinsic value)
Breakeven ITM strike + Debit paid (for call ZEBRA)

Payoff Profile

The ZEBRA (Zero Extrinsic Back Ratio) creates a synthetic stock position with defined risk. It behaves like owning stock above the breakeven point, but losses are capped below. The strategy eliminates extrinsic value exposure, making it theta-neutral. • Above breakeven - profits 1:1 with stock movement (like owning shares) • Below breakeven - losses capped at debit paid • Debit paid (defined risk) • Unlimited (like stock) • Zero or minimal time decay (key advantage)

Singapore Market Details

Primary Instruments STI Index Options, DBS Options, OCBC Options, UOB Options
Mas Compliance MAS regulated; retail trading permitted with licensed broker; defined risk strategy
Contract Size S$5 per point for STI; 1,000 shares for equities; 100 shares for ETFs
Trading Hours 9:00 AM - 5:00 PM SGT (Pre-Open 8:30 AM - 9:00 AM)
Expiry Options Monthly expiries; weekly options limited availability
Settlement T+2 for shares; T+1 for SGX derivatives
Tax Treatment No capital gains tax for individuals in Singapore
Stamp Duty 0.2% on share purchases (buyer and seller each); options exempt
Cdp Account Central Depository (CDP) account required for share ownership; not needed for options

Frequently Asked Questions

Is ZEBRA really 'zero' extrinsic?

It's near-zero, not exactly zero. The structure minimizes extrinsic value by balancing long ATM options (high extrinsic) against a short ITM option (lower extrinsic). Perfect cancellation is rare, but ZEBRA typically achieves 70-90% reduction in theta compared to a single long option.

Why use ZEBRA instead of just buying stock?

ZEBRA offers: 1) Defined risk (can't lose more than debit paid), 2) Lower capital requirement, 3) No stamp duty on options (0.2% saved), 4) Leverage. Downsides: No dividends, position expires (must roll), requires options knowledge.

What happens if the stock drops significantly?

All your options expire worthless, and your loss is limited to the debit paid. This is ZEBRA's key advantage - if you owned stock and it went to zero, you'd lose everything. With ZEBRA, your loss is capped at entry cost.

How long can I hold a ZEBRA?

You can hold indefinitely by rolling. Each ZEBRA has an expiration, but you roll to a later expiration at 30-45 DTE. Each roll has a small cost, but much less than the theta decay you'd experience with single long options.

Can I create a bearish ZEBRA?

Yes! A put ZEBRA is bearish: Buy 2 ATM puts + Sell 1 ITM put (strike above current price). This creates negative delta (like shorting stock) with defined risk if the stock rises. Same theta-neutral benefit applies.

How do I calculate the breakeven for a ZEBRA?

Breakeven ≈ ATM strike + (Net Debit / Delta per Contract). For a simple approximation with 2:1 call ZEBRA: Breakeven ≈ ATM strike + Total Debit. Example: ATM 33.00, debit S$0.50 per share → breakeven ≈ S$33.50.

Why doesn't my ZEBRA have exactly 100 delta?

Standard 2:1 ZEBRA may not give exactly 100 delta. Example: 2 × 0.50 ATM - 0.75 ITM = 0.25 per structure. For 100 delta equivalent, you'd need multiple structures or adjust strikes. Some traders accept approximate delta; others fine-tune with deeper/shallower ITM or different ratios.

When should I roll my ZEBRA?

Roll at 30-45 DTE remaining. At this point, theta begins accelerating even for ZEBRA, and gamma risk increases. Rolling resets the clock with fresh options that maintain the favorable theta profile. Set a calendar reminder.

What if IV spikes after I enter?

ZEBRA has low vega exposure because the long and short options partially offset. A spike helps slightly (net positive vega) but the impact is minimal. This is another advantage - ZEBRA is relatively insensitive to IV changes compared to single options.

Can I adjust a ZEBRA if my view changes?

Yes. Options: 1) Close entirely if view reverses, 2) Close the long options and keep short (becomes covered call-like if assigned), 3) Convert to different structure, 4) Add protection with additional options. ZEBRA is flexible because it's defined risk.

How do I optimize ZEBRA for different delta targets?

Adjust the ratio or ITM strike depth. For higher delta: Use shallower ITM (lower delta to subtract) or increase to 3:1 ratio. For lower delta: Use deeper ITM (higher delta to subtract). You can also add/subtract shares for fine-tuning. Calculate: Target Delta = (N × ATM Delta) - (M × ITM Delta) and solve for N:M ratio.

How does skew affect ZEBRA construction?

Normal equity skew (put skew) means ITM calls have lower IV than ATM. This helps call ZEBRA - the ITM call you sell has relatively less extrinsic, making zero-extrinsic easier to achieve. For put ZEBRA, the ITM put has higher IV, potentially adding more extrinsic to the short leg.

Can I use ZEBRA for gamma scalping?

Yes, and it's excellent for this. ZEBRA's near-zero theta means low holding cost while you wait for gamma opportunities. Enter ZEBRA, then trade the underlying to capture gamma moves. Each trade locks in profit; theta doesn't erode your position meanwhile. This is an advanced technique.

How do I handle dividend risk with ZEBRA?

Your short ITM call may be assigned early before ex-dividend if the dividend exceeds remaining extrinsic. Monitor ITM calls before ex-dates. If assigned: You're short stock + long 2 calls = still bullish, just different structure. You can close the short stock and continue with calls, or close everything.

What's the most capital-efficient way to use ZEBRA?

Use ZEBRA to replace stock holdings: Same directional exposure at fraction of capital. The freed capital can be used elsewhere. Example: S$33,000 in stock → S$500 in ZEBRA + S$32,500 in bonds/other. Risk is equivalent on upside, but ZEBRA has defined downside risk.

Related Strategies

Deep ITM Call
Synthetic Stock (Risk Reversal)
Bull Call Spread

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