Strike Selection Trade Setups for Earnings Season
Earnings season represents one of the most volatile and potentially lucrative periods for options traders. When a publicly traded company releases its quarterly financial results, the market often reacts with significant price swings. However, navigating these waters requires more than just a directional bias; it requires a sophisticated approach to strike selection and an understanding of how event volatility impacts option pricing. Choosing the right options strike price is the difference between a profitable trade and a total loss of premium, even if you correctly predict the direction of the stock movement.
In this comprehensive guide, we will explore the mechanics of trade selection during earnings, the role of implied volatility (IV), and specific setups designed to balance probability and payoff. Whether you are a conservative income seeker or a high-risk speculator, mastering the art of the strike selection is paramount to long-term success in the options market.
Understanding the Mechanics of Earnings Volatility
Before diving into specific strike selection strategies, one must understand the unique environment of an earnings announcement. Unlike typical trading days, earnings dates are known catalysts that create a phenomenon known as the IV Crush. Leading up to the announcement, uncertainty increases, causing the demand for options—and thus their implied volatility—to skyrocket.
According to the CBOE, implied volatility represents the market's expectation of a stock's future volatility. During earnings, this expectation is often localized to the 24-hour period following the news. Once the news is released, the uncertainty vanishes, and IV collapses. This means that an option buyer must not only be right about the direction but also overcome the rapid loss in extrinsic value. To mitigate this, traders often use a screener to identify stocks where the expected move is mispriced relative to historical norms.
The Expected Move Calculation
To select a strike price effectively, you must first calculate the Expected Move. A common rule of thumb for estimating the expected move is to take the price of the At-The-Money (ATM) straddle (the cost of the ATM call plus the ATM put). Market makers price options such that approximately 68% of the time (one standard deviation), the stock will stay within this range.
If a stock is trading at $100 and the ATM straddle costs $10, the market expects a move of roughly 10% in either direction. If you buy a call with a strike price of $115, you are betting on a move that exceeds the market's current expectations. This is a "low probability, high reward" setup. Conversely, selling a credit spread outside that $10 range is a "high probability, lower reward" setup.
Strategic Strike Selection for Bullish Setups
When a trader expects a positive surprise, the temptation is to buy Out-of-the-Money (OTM) calls because they are cheap. However, during earnings, this is often a recipe for failure due to the aforementioned IV crush.
The In-The-Money (ITM) Long Call
For a directional bullish bet, selecting an ITM strike (Delta of 0.60 to 0.70) can be more effective than OTM strikes. ITM options have higher intrinsic value, which is not affected by the volatility crush. If the stock moves up as expected, the delta will increase, and the option will gain value while the extrinsic decay is partially offset by the price movement.
The Bull Call Spread (Debit Spread)
To lower the cost of entry and hedge against IV crush, a Bull Call Spread is a premier trade selection choice. By buying an At-The-Money call and selling an Out-of-the-Money call, you effectively "sell" some of the high volatility to another trader.
- Strike Selection Example: Stock XYZ is at $50. You buy the $50 Call and sell the $55 Call.
- Your max profit is capped, but your breakeven point is lower than buying the $50 call alone.
- You can analyze these payoffs using a pnl model to visualize how the spread performs at different price targets.
Neutral and High-Probability Income Strategies
Many professional traders prefer to be "net sellers" of volatility during earnings. This involves selecting strikes that are likely to remain untouched by the stock's move, allowing the trader to collect the premium as it decays.
Iron Condors and Strike Width
An Iron Condor involves selling an OTM Put Spread and an OTM Call Spread simultaneously. The goal is for the stock to stay within a specific "range."
- Selection Criteria: Traders often look for strikes at the 0.15 to 0.20 Delta level. This provides a statistical cushion against the expected move.
- Using GEX Levels: To refine these strikes, many look at gamma exposure levels to see where market makers might provide support or resistance. If a major GEX level sits just outside your short strike, it acts as a secondary layer of protection.
- Risk Management: Always ensure the width of the wings is consistent with your risk tolerance. A $5 wide spread has a maximum risk of $500 minus the credit received.
The Short Straddle vs. Short Strangle
A short straddle involves selling the ATM call and put. This is a pure play on volatility collapsing more than the stock moves. This is high risk and usually reserved for institutional players. For retail traders, a Short Strangle (selling OTM calls and puts) offers a wider margin for error.
According to FINRA, selling uncovered options carries unlimited risk, so most retail traders should convert these into "defined risk" spreads like the Iron Condor mentioned above.
Advanced Strike Selection: The Calendar and Diagonal Spread
Sometimes the best way to trade earnings isn't to trade the earnings week at all, but to trade the volatility surrounding it.
Calendar Spreads
A calendar spread involves selling a short-term option (expiring right after earnings) and buying a longer-term option (expiring weeks or months later) at the same strike price.
- The Logic: You want the short-term option to expire worthless or lose value rapidly due to IV crush, while the long-term option retains its value because its IV is less sensitive to the immediate event.
- Strike Selection: Usually performed at the money (ATM) to maximize the time decay (theta) of the short-dated option.
Diagonal Spreads (Poor Man's Covered Call)
A diagonal spread uses different strikes and different expiration dates. For a bullish setup, you might buy a deep ITM call expiring in 3 months and sell an OTM call expiring the Friday after earnings. This allows you to participate in a long-term rally while using the earnings-inflated premium of the short call to reduce your cost basis. You can track these types of institutional-like setups using options flow data to see where the "smart money" is positioning their strikes.
The Role of IV Rank and IV Percentile in Strike Selection
Not all earnings trades are created equal. A stock might have high IV, but if that IV is actually low relative to its own history, selling premium might be a mistake.
- IV Rank: Compares the current IV to the high and low IV over the past year.
- IV Percentile: Tells you the percentage of days in the past year that IV was lower than the current level.
When IV Rank is above 70, it is generally considered an ideal environment for selling credit spreads or iron condors. When IV Rank is low (below 30), it may be a better time for debit spreads or long options, as the "crush" will be less severe. Tools like IV Context are essential for determining if the current options strike price is overvalued or undervalued.
Case Study: Tech Giant Earnings Setup
Let's look at a hypothetical example of Apple (AAPL) heading into earnings.
- Price: $180
- Expected Move: $9 (5%)
- Sentiment: Slightly Bullish
Setup A: The Aggressive Speculator Buying the $190 Call (OTM).
- Pros: Cheap, massive leverage.
- Cons: If AAPL moves to $188, the option likely expires worthless despite the move being positive. This is the "Right but Wrong" scenario.
Setup B: The Balanced Trader Bull Call Spread: Buying $180 Call, Selling $185 Call.
- Pros: Lower cost than the $180 call alone, protected against some IV crush.
- Cons: Profit is capped at $5 minus the debit paid.
Setup C: The Probability Seller Bull Put Spread: Selling $170 Put, Buying $165 Put.
- Pros: Profit if the stock goes up, stays flat, or even drops slightly (up to $170).
- Cons: Limited profit, high risk-to-reward ratio.
By comparing these in an analysis tool, a trader can determine which strike selection aligns with their specific risk profile for the event.
Managing the Trade Post-Earnings
Strike selection is only half the battle. The morning after the earnings announcement, the market will open, and the "IV Crush" will be in full effect.
- Winners: If your profit target (e.g., 50% of max profit on a credit spread) is hit at the open, take it. Volatility can return, and a winning trade can quickly turn into a loser.
- Losers: If the stock blows past your strikes, evaluate the performance of the position. In many cases, it is better to close the losing trade and move on rather than "rolling" the position, which often just compounds the risk in a high-volatility environment.
- Gamma Risk: As expiration approaches (usually the Friday of earnings week), gamma risk increases. Small moves in the stock will cause large swings in the option's value. Be prepared to exit positions before the final hour of trading.
For more information on the risks of options trading, the SEC provides excellent resources on investor protection and market mechanics. Additionally, Investopedia offers a foundational look at how strike prices affect the Greeks.
Summary of Strike Selection Principles
To succeed during earnings season, keep these rules in mind:
- Respect the Expected Move: Don't buy OTM strikes that require a move significantly larger than what the market is pricing in unless you have a very strong conviction.
- Account for IV Crush: Always assume the extrinsic value of your options will drop by 30-50% immediately after the announcement.
- Use Spreads to Mitigate Risk: Selling an option against the one you buy is the most effective way to offset the high cost of earnings volatility.
- Delta is Your Friend: Use Delta to estimate the probability of an option finishing in the money. A 0.30 Delta call has roughly a 30% chance of being ITM at expiration.
- Check the Chain: Always look at the option chain for liquidity. High bid-ask spreads can eat into your profits before the trade even begins.
Frequently Asked Questions
What is the best strike price to buy for earnings?
There is no single "best" strike, but generally, At-The-Money (ATM) or slightly In-The-Money (ITM) strikes are preferred for directional bets to avoid the total loss associated with IV crush on Out-of-the-Money (OTM) strikes. If you are selling premium, strikes outside the "Expected Move" (usually 0.15 to 0.20 Delta) are often chosen for their higher probability of success.
How does IV crush affect my strike selection?
IV crush reduces the extrinsic value (time value) of all options regardless of their strike. However, OTM options are composed entirely of extrinsic value, meaning they can lose 90% or more of their value if the stock doesn't move past the strike price. ITM options retain their intrinsic value, making them a "safer" choice for buyers during high-volatility events.
Should I trade earnings with weekly or monthly options?
Weekly options are more sensitive to earnings moves because they have higher Gamma and higher Theta decay. This makes them better for aggressive, short-term plays but riskier. Monthly options have lower decay and are less affected by the immediate IV crush, making them more suitable for traders who want to capture a longer-term trend following the earnings report.
What is a 'Safe' delta for selling credit spreads during earnings?
While no trade is truly safe, many traders utilize a Delta of 0.15 or lower for selling credit spreads. This strike selection typically places the trade outside of the one-standard-deviation expected move, providing a statistical advantage, though the reward (premium collected) will be lower.
How can I calculate the expected move for an earnings event?
To calculate the expected move, add the price of the front-month At-The-Money (ATM) Call and the ATM Put. This total represents what the market expects the stock to move (up or down) by expiration. Selecting strikes outside of this range is considered a high-probability strategy, while selecting strikes inside this range is a more aggressive directional play.