Direxion Daily S&P 500 Bear 3X ETF (SPXS) 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.

Direxion Daily S&P 500 Bear 3X ETF (SPXS) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $367.6M, listed on AMEX, carrying a beta of -2.75 to the broader market. The Fund seeks daily leveraged investment results. public since 2008-11-19.

Snapshot as of Jul 15, 2026.

Spot Price
$25.80
ATM IV
39.3%
IV Rank
9.4%
IV Percentile
21.0%
HV 20-Day
40.0%
IV Skew 25Δ
-0.169

As of Jul 15, 2026, Direxion Daily S&P 500 Bear 3X ETF (SPXS) at $25.80 has an ATM IV of 39.3%, implying a 30-day one-standard-deviation range of approximately ±$2.91. IV rank is 9.4% (subdued, distribution priced tighter than usual). IV percentile is 21.0%. The 25-delta skew is -0.169: 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 SPXS probability analysis Data Feeds Strategy Selection

Strategy selection on Direxion Daily S&P 500 Bear 3X 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 39.3% 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 SPXS probability distribution

The probability cone above is the option-market-implied distribution of where Direxion Daily S&P 500 Bear 3X 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 39.3% and spot at $25.80, the 1σ band is approximately ±13.6% over a 30-day horizon. Recent realized HV-20 of 40.0% runs 0.7 vol points above current implied, an inverted regime where premium buyers are underpaying.

SPXS 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. SPXS's put-skewed 25-delta surface (-0.169) 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 SPXS 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 SPXS IV rank at 9.4%, 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 SPXS probability analysis questions

What is the SPXS 30-day expected price range?
As of Jul 15, 2026, with SPXS at $25.80 and ATM IV at 39.3%, the implied 30-day one-standard-deviation range is approximately ±$2.91, or about $22.89 to $28.71. IV rank is subdued, so the priced distribution is tighter than the 1-year typical width.
What does SPXS risk-neutral density tell us?
Risk-neutral density is the probability distribution of future SPXS 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 SPXS 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.