Risk Reversal

No. 'Zero cost' only refers to the net premium - you don't pay cash upfront. However, significant risk remains. On a bullish reversal, if the stock falls below the put strike, losses can be substantial (theoretically to zero). Margin is still required, and the risk/reward is not symmetric.

Risk Reversal allows you to gain bullish exposure at zero or low cost by financing the call purchase with put sale. This gives you more leverage per dollar deployed. The trade-off is adding downside risk from the short put that a simple call purchase doesn't have.

If the stock price is between the put and call strikes at expiration, both options expire worthless. Your P&L equals the net premium received or paid at entry. For zero-cost, P&L is zero in this scenario.

Yes. A Bearish Risk Reversal uses the opposite structure: buy an OTM put and sell an OTM call. This profits from price decline. Note that the risk profile reverses - you now have unlimited upside risk from the short call.

Margin is required for the short option. For a short put, margin is typically 15-25% of the strike price. The exact amount varies by broker and account type. The long option requires no margin but does need premium payment (or is funded by short premium).

Wider strikes (lower delta options) create a larger 'flat zone' where both options expire worthless, result in lower net delta (less directional exposure), and typically create credit or smaller debit. Narrower strikes (higher delta) create more stock-like behavior but with less flat zone.

30-90 DTE is typical. Shorter expiries have more gamma risk and faster time decay. Longer expiries cost more but give more time for thesis to play out. Match expiry to your catalyst timeline - if earnings in 45 days, use 45-60 DTE.

Options include: 1) Close entire position and take loss, 2) Roll short option to further strike and/or later expiry, 3) Buy protective option to cap loss, 4) Let assignment happen and manage resulting stock position. Choice depends on remaining conviction and risk tolerance.

Yes. You don't receive dividends on a Risk Reversal (you don't own stock). Dividends are priced into options - puts increase in value, calls decrease. Around ex-dividend, short puts may be assigned for dividend capture. The net effect is already in option prices but creates assignment risk.

The zero-cost structure makes Risk Reversal relatively vega-neutral (long vega on call, short vega on put offset). However, changes in skew affect value. Rising overall IV with stable skew has minimal impact. Steepening skew helps bullish reversals; flattening skew hurts them.

Market makers hedge Risk Reversal positions through delta hedging (buying/selling underlying), vega hedging (using ATM straddles or other structures), and skew hedging (offsetting reversals or using variance swaps). They also manage Greeks exposure through portfolio-level optimization.

Risk Reversal prices reflect implied skewness - the market's expectation of distribution asymmetry. Research shows Risk Reversal prices have modest predictive power for realized skewness but are more reflective of risk preferences than pure statistical forecasts. Steep skew often overpredicts crashes.

Compare Risk Reversal prices across related underlyings or against historical norms. If one asset's skew is extremely steep relative to another or its own history, trade the spread (buy one reversal, sell the other). Key risks: basis risk if convergence doesn't occur, and model risk in determining 'fair' skew.

Vanna (delta sensitivity to IV) is critical - Risk Reversals have positive vanna for bullish, affecting delta as vol changes. Charm (delta decay over time) matters near expiry. Volga is less important for single-name but matters for index reversals. Understanding these explains P&L moves that first-order Greeks don't capture.

Pre-meeting, skew typically steepens as traders hedge downside risk, making bullish reversals cheaper/more credit. Post-meeting, if outcome is benign, skew flattens rapidly. This creates systematic opportunity: buy bullish reversal before dovish-expected meetings, benefit from skew compression if outcome as expected.