ProShares - Short Financials (SEF) Expected Move
Expected move estimates the probable price range for a given period based on at-the-money options pricing. It reflects the market consensus for volatility over the selected timeframe.
ProShares - Short Financials (SEF) operates in the Financial Services sector, specifically the Asset Management - Leveraged industry, with a market capitalization near $9.7M, listed on AMEX, carrying a beta of -0.83 to the broader market. ProShares Short Financials seeks daily investment results, before fees and expenses, that correspond to the inverse (-1x) of the daily performance of the S&P Financial Select SectorSM Index. public since 2008-06-12.
Snapshot as of May 15, 2026.
- Spot Price
- $33.07
- Expected Move
- 5.4%
- Implied High
- $34.85
- Implied Low
- $31.29
- Front DTE
- 34 days
As of May 15, 2026, ProShares - Short Financials (SEF) has an expected move of 5.39%, a one-standard-deviation implied price range of roughly $31.29 to $34.85 from the current $33.07. Expected move is derived from at-the-money straddle pricing and represents the market's pricing of a ±1σ move. Roughly 68% of outcomes should fall within this range under lognormal assumptions, though empirical markets have fatter tails.
SEF Strategy Sizing to the Expected Move
With ProShares - Short Financials pricing an expected move of 5.39% from $33.07, risk-defined strategies sized to the implied range structurally target the modal outcome distribution. Iron condors with wings at the ±1σ expected move boundaries collect premium against the ~68% probability that spot stays inside the range under lognormal assumptions; strangles set wider at ±1.5σ or ±2σ target the tails but pay smaller per-trade premium. Long-vol structures (long straddles, ratio backspreads) profit when realized move exceeds the implied move, the inverse trade: they bet against the lognormal assumption itself, capitalizing on the empirically fatter equity-return tails.
Learn how expected move is reported and how to read the data →
Per-expiration expected move for SEF derived from ATM implied volatility at each listed expiration. Implied high/low bounds are computed as $33.07 × (1 ± expected move %). One standard-deviation range under lognormal assumptions, roughly 68% of outcomes fall inside.
| Expiration | DTE | ATM IV | Expected Move | Implied High | Implied Low |
|---|---|---|---|---|---|
| Jun 18, 2026 | 34 | 18.8% | 5.7% | $34.97 | $31.17 |
| Jul 17, 2026 | 63 | 29.2% | 12.1% | $37.08 | $29.06 |
| Aug 21, 2026 | 98 | 23.8% | 12.3% | $37.15 | $28.99 |
| Nov 20, 2026 | 189 | 24.0% | 17.3% | $38.78 | $27.36 |
Frequently asked SEF expected move questions
- What is the current SEF expected move?
- As of May 15, 2026, ProShares - Short Financials (SEF) has an expected move of 5.39% over the next 34 days, implying a one-standard-deviation price range of $31.29 to $34.85 from the current $33.07. The expected move is derived from at-the-money straddle pricing and represents the market consensus for a ±1σ price move.
- What does the SEF expected move mean for traders?
- Roughly 68% of outcomes should fall within ±1 expected move and 95% within ±2 under lognormal assumptions, though equity returns have empirically fatter tails than log-normal predicts. Strategies sized to the expected move (iron condors at ±1σ, strangles at ±1.5σ) target the typical outcome distribution; strategies that profit from tail moves (long-vol structures, ratio backspreads) target the tails the lognormal model under-prices.
- How is SEF expected move calculated?
- The expected move displayed here is derived from at-the-money implied volatility scaled to the chosen tenor: expected move % is approximately ATM IV times sqrt(T / 365), where T is days to expiration. An equivalent straddle-based form: the ATM straddle (call + put at the same strike) is roughly sqrt(2/pi) times spot times IV times sqrt(T/365), so the implied one-standard-deviation move is approximately 1.25 times ATM straddle divided by spot. The two formulations agree once the sqrt(2/pi) constant is reconciled.