IV Crush — Why Options Get Cheaper After Earnings

It's one of the most frustrating experiences in options trading: you bought a call right before earnings, the stock moved exactly the direction you expected — and you still lost money. The stock went up 3% and your option barely budged. What happened?

The answer is IV crush — the sudden collapse in implied volatility that follows every earnings announcement. Understanding IV crush is essential for every options trader, because it's the difference between losing money despite being right, and structuring trades that actually profit from volatility's behavior.

What Is IV Crush?

IV crush is the rapid decline in implied volatility (IV) that occurs immediately after a company's earnings are announced. Before earnings, the uncertainty of the announcement drives option prices higher — the market prices in the possibility of a big move in either direction. After the announcement, that uncertainty is resolved, and the "insurance premium" embedded in option prices evaporates.

Think of it this way: a stock is about to announce earnings. You don't know if it'll beat or miss — the uncertainty is high. Other traders don't know either, so they bid up option prices to protect themselves or speculate. The IV is high. Then earnings come out. Now the uncertainty is gone. The IV drops like a rock, and with it, the price of every option on that stock.

The Mechanics — A Real Example

Let's walk through a real scenario:

The Golden Rule

Don't buy options right before earnings unless you're pricing in a move that exceeds the IV crush cost.

Every options trader who buys before earnings needs to ask: "Does my directional thesis justify a move that's BIGGER than what the IV premium implies?" If the stock needs to move 10% to overcome the IV crush and you only expect a 3-4% move, you're better off either waiting until after earnings or selling premium instead.

Who Benefits From IV Crush

Option Sellers — The Natural Beneficiary

If you sell options before earnings, you collect the high IV premium upfront — when options are most expensive. After earnings, the IV collapses and the options you sold are now worth far less. You keep the premium as profit. This is why many experienced options traders specifically look for opportunities to sell premium before earnings.

Strategies that benefit from IV crush: selling straddles, strangles, or iron condors before earnings; selling cash-secured puts on stocks you want to own at lower prices.

Post-Earnings Option Buyers

After earnings, when IV has collapsed, options are cheap. If you expect the stock to make a steady move over the following weeks — not driven by a binary event — buying after the crush can be smart. You're getting options at their cheapest point, before the slow grind of time decay sets in.

The Straddle/Strangle Play

Some traders buy straddles (call + put at the same strike) before earnings — not because they know direction, but because they expect a bigger move than the market is pricing in. If IV is 60% and the stock historically moves 8% on earnings, a straddle buyer profits when the actual move exceeds what the IV implied. If the stock moves 10% but IV was pricing in only 6%, the straddle buyer wins regardless of direction.

IV Crush and Strategy Selection

Here's how IV crush should influence your strategy choice:

• Before earnings: If you want to be in a directional trade, prefer defined-risk spreads over naked long options. Spreads have lower net premium — the IV crush hurts you less when you're not paying full price for the option.
• Before earnings: If you're bullish on a stock and want to express that view, selling a put spread (bear put spread) costs less than buying a naked put and is less damaged by IV crush.
• Before earnings: If you want to sell premium, iron condors and strangles around earnings are high-premium opportunities — but be aware that a big move can blow through your short strikes.
• After earnings: When IV has collapsed, long calls and puts are cheapest. If you have a multi-week directional thesis post-earnings, this is often the best entry point.

Reading the IV Before Earnings

How do you know if IV is "high" enough that crush matters? Two tools:

IV Rank: Where current IV sits relative to its past year range (0-100%). If IV Rank is 85%, current IV is near the top of its range — meaning premium is expensive and IV crush will be significant. A rank of 15% means premium is cheap and the crush will be mild.

IV Percentile: What percentage of trading days over the past year had lower IV than today. An IV Percentile of 90% means options are expensive relative to history — IV crush will be sharper after earnings.

Real-World Example: Earnings on a High-IV Stock

Consider a tech stock reporting earnings with IV Rank at 92%. Options are pricing in a 6% move. You think the stock will beat estimates and move up 8%.

Buying a call costs $6 (high IV). After earnings, IV drops to 30%. Your $6 call is now worth roughly $3.50 even with the 8% move — you made $1.50 on a $6 investment, or 25%, when the stock moved 8%.

Alternatively, selling a cash-secured put before earnings collected $3 in premium. After earnings and IV crush, the put is worth $1.50. You kept $1.50 of the $3 premium — while the stock moved up 8%. You profited from IV crush even without a directional bet.