Long Volatility

Yes, one option will always expire worthless (or worth less). But the point is you don't know WHICH direction the move will be. If the underlying moves enough, the winning option makes more than both cost combined. Example: Pay £100 for straddle, stock moves big, call becomes worth £200, put worth £0. Net profit: £100.

Roughly, the stock needs to move more than the straddle cost as a percentage of stock price. If straddle costs 5% of stock price, you need more than a 5% move either direction to profit at expiration. Before expiration, you can profit with smaller moves if IV rises.

Theta drag is the daily loss of option value due to time passing. Long options lose value every day. If nothing happens (no move, no IV rise), your straddle slowly bleeds. This is why you need a catalyst - without a reason for the stock to move, theta will win.

Usually no. Theta accelerates rapidly in the final 2-3 weeks. Most traders exit with 14-21 days remaining. The exception is if your catalyst (like earnings) is right at expiration - then you might hold through. But be prepared for total loss.

Straddle if you're confident there will be a move but unsure of magnitude. Strangle if you're confident the move will be LARGE but want to spend less premium. Strangle is cheaper but needs a bigger move to profit.

Use IV Rank (where current IV falls in its 52-week range) or IV Percentile (% of days IV was lower). IV Rank <30% suggests cheap, >70% suggests expensive. Also compare IV to recent realized volatility - if IV is significantly below recent RV, options may be cheap.

Gamma scalping is actively hedging your delta as price moves, profiting from the oscillation. It's advanced - requires real-time monitoring, quick execution, and transaction costs eat into profits. Most retail traders should just hold the straddle and let gamma work naturally.

Option 1: Buy straddle 2-3 weeks early, sell before earnings (capture IV run-up). Option 2: Hold through but understand you need a LARGER move than the straddle implies. Option 3: Use a structure like calendar or butterfly that benefits from IV crush. No free lunch - all approaches have trade-offs.

Because IV reflects UNCERTAINTY. Once the event passes (earnings, data, election), uncertainty is resolved. Even if stock moves 5%, the market now 'knows' the outcome. Future uncertainty is lower, so IV drops. The move must exceed what was priced in to profit.

Not easily. You can reduce theta with spreads (like calendars) but you give up gamma. Back-ratios can be done for credit but have their own risks. Some volatility strategies (like dispersion) have lower theta but require more capital and sophistication. Generally, being long gamma means paying theta.

Multiple approaches: (1) GARCH models for short-term forecasting, (2) Volatility cones comparing IV to historical RV ranges, (3) Proprietary models incorporating event calendars, (4) Cross-asset analysis (FX vol, credit spreads), (5) Sentiment indicators. Most use ensemble of methods.

Depends on transaction costs vs. gamma. Too frequent = costs eat profits. Too infrequent = suboptimal gamma capture. Academic work suggests hedging based on delta bands (e.g., ±30) or price moves (e.g., 1%) outperforms time-based. Optimal depends on your specific costs and gamma profile.

Individual vol positions may seem uncorrelated in normal times but correlate in crises. Long vol on stocks A, B, C might all spike together in a crash. Index vol includes correlation premium - if you're long component vol and short index vol (dispersion), you're short correlation. Stress test for correlation = 1 scenarios.

VIX futures converge to spot at expiration. In contango (normal), futures > spot, so holding long futures has negative roll yield. In backwardation (crisis), spot > futures. VIX options settle on VIX futures, not spot, which is why VIX call payoffs can be different than expected. Always know what you're actually trading.

Delta hedging with underlying stock/futures, gamma hedging with other options, vega hedging across term structure, maintaining inventory limits, and often laying off tail risk via OTM options or volatility products. They monetize bid-ask spread but actively manage the Greek exposures they accumulate.