Invesco Aerospace & Defense ETF (PPA) Probability Analysis
Probability analysis extracts the risk-neutral probability distribution implied by option prices. It shows the market-implied likelihood of the underlying reaching various price levels by expiration.
Invesco Aerospace & Defense ETF (PPA) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $8.11B, listed on AMEX, employing roughly 8,700 people, carrying a beta of 0.85 to the broader market. The fund generally will invest at least 90% of its total assets in securities that comprise the underlying index. Led by Andrew J. Schlossberg, public since 2005-10-26.
Snapshot as of Jul 15, 2026.
- Spot Price
- $171.99
- ATM IV
- 21.2%
- IV Rank
- 23.6%
- IV Percentile
- 57.1%
- HV 20-Day
- 20.6%
- IV Skew 25Δ
- -0.033
As of Jul 15, 2026, Invesco Aerospace & Defense ETF (PPA) at $171.99 has an ATM IV of 21.2%, implying a 30-day one-standard-deviation range of approximately ±$10.45. IV rank is 23.6% (subdued, distribution priced tighter than usual). IV percentile is 57.1%. The 25-delta skew is -0.033: downside tail priced richer than upside, biasing probability mass below spot. Under lognormal assumptions roughly 68% of outcomes fall within ±1σ and 95% within ±2σ; risk-neutral probability analysis refines this by extracting the market-implied distribution directly from options prices, capturing the fat tails that real markets exhibit.
How PPA probability analysis Data Feeds Strategy Selection
Strategy selection on Invesco Aerospace & Defense ETF options does not derive from any single metric in isolation. The probability analysis view above sits inside a broader read: ATM IV currently sits at 21.2% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. Combine the probability analysis data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
How to read the PPA probability distribution
The probability cone above is the option-market-implied distribution of where Invesco Aerospace & Defense ETF spot could end up at expiration. It's derived from the implied-volatility surface via a risk-neutral pricing transformation, not from historical realized returns. With ATM IV at 21.2% and spot at $171.99, the 1σ band is approximately ±7.3% over a 30-day horizon. Recent realized HV-20 of 20.6% runs 0.6 vol points below the current implied, suggesting the chain is pricing more dispersion than the underlying has been delivering.
PPA risk-neutral vs real-world probabilities
The probabilities derived from option prices reflect the market's risk-adjusted view, not the realized statistical distribution. Risk-neutral probabilities include the equity risk premium and skew preferences priced into options, so they tend to overstate tail probability and understate upside drift relative to actually-realized outcomes. PPA's put-skewed 25-delta surface (-0.033) means downside risk-neutral probabilities are higher than upside - the empirical bias is well-documented. For probability-of-touch calculations and assignment-risk modeling, risk-neutral is the right benchmark. For position-sizing your own conviction, blend with realized-volatility-based statistics from the HV columns.
Trading the PPA distribution
Probability-driven strategies aim to capture mispricings between the implied distribution and your own probability assessment. Premium-selling structures (credit spreads, iron condors, cash-secured puts) profit when the implied distribution overprices tail probability relative to realized; premium-buying (debit spreads, long calls/puts, long straddles) profits in the reverse. With PPA IV rank at 23.6%, the chain is pricing tighter tails than recent realized history; buyers get cheaper optionality but need a real catalyst to monetize. Always pair probability-driven strategy selection with a stop loss or wing-defined risk - the implied distribution is a snapshot, and regime shifts can invalidate it intraday.
Learn how risk-neutral density is reported and how to read the data →
Frequently asked PPA probability analysis questions
- What is the PPA 30-day expected price range?
- As of Jul 15, 2026, with PPA at $171.99 and ATM IV at 21.2%, the implied 30-day one-standard-deviation range is approximately ±$10.45, or about $161.54 to $182.44. IV rank is subdued, so the priced distribution is tighter than the 1-year typical width.
- What does PPA risk-neutral density tell us?
- Risk-neutral density is the probability distribution of future PPA price implied by listed option prices. Extracted via Breeden-Litzenberger (twice-differentiating the call price function with respect to strike), it represents the pricing kernel rather than the real-world probability of outcomes. Persistent skew or fat-tail features in the density reflect how the market is pricing tail risk.
- How does PPA ATM IV translate to a probability range?
- ATM IV is annualized; multiplying by sqrt(t/365) scales it to the chosen tenor. Under lognormal assumptions, the resulting standard deviation defines the ±1σ band that contains roughly 68% of outcomes, ±2σ for 95%. Empirical equity returns have fatter tails than log-normal, so the implied tail probabilities under-state realized tail frequency in stressed regimes.