ACNB Corporation (ACNB) Volatility Skew

Implied volatility skew shows how IV varies across strike prices for a given expiration. Steeper skews indicate higher demand for downside protection relative to upside speculation.

ACNB Corporation (ACNB) operates in the Financial Services sector, specifically the Banks - Regional industry, with a market capitalization near $536.4M, listed on NASDAQ, employing roughly 391 people, carrying a beta of 0.87 to the broader market. ACNB Corporation, a financial holding company, provides banking, insurance, and financial services to individual, business, and government customers in the United States. Led by James Helt, public since 1994-04-04.

Snapshot as of May 15, 2026.

Spot Price
$52.28
ATM IV
45.2%
IV Skew 25Δ
-0.213
IV Rank
22.5%
IV Percentile
45.6%
Term Structure Slope
-0.074

As of May 15, 2026, ACNB Corporation (ACNB) at-the-money implied volatility is 45.2%. IV rank is 22.5% (where 0% is the 52-week low and 100% is the 52-week high). IV percentile is 45.6%. The 25-delta skew is -0.213: puts carry meaningful premium over calls, a classic equity downside-protection skew. High IV rank typically favors premium-selling strategies; low IV rank favors premium-buying.

ACNB Strategy Selection at Current Volatility Levels

For ACNB Corporation options at 45.2% ATM IV, low IV rank (22.5%) favors premium-buying or long-vol structures: long calls or puts, debit spreads, calendar spreads, long straddles. The risk: low-rank regimes can persist for months while time decay eats premium-buyers alive. The 25-delta skew is meaningfully put-skewed, so put-credit spreads capture more premium for the same width than call-credit spreads. Pair the vol-rank read with the dealer-gamma view and the upcoming-events calendar to confirm the strategy fits both the structural regime and the path-dependent risk. The variance risk premium - the persistent gap between implied and subsequently realized vol - is positive in equity markets on average; high IV rank typically reflects a stretch where the premium is wider than usual.

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Frequently asked ACNB volatility skew questions

What is the current ACNB ATM implied volatility?
As of May 15, 2026, ACNB Corporation (ACNB) at-the-money implied volatility is 45.2%. IV rank is 22.5% on a 0-100% scale anchored to the 1-year IV range. ATM IV is the volatility input that makes a Black-Scholes-equivalent model reproduce the listed at-the-money option prices.
Is ACNB IV high or low historically?
IV is subdued relative to its 1-year history, conditions that typically favor premium-buying strategies (long calls, long puts, debit spreads, calendar spreads).
What does ACNB volatility skew tell options traders?
Volatility skew is the pattern by which IV varies across strikes for a given expiration. ACNB Corporation carries the typical equity downside-protection skew: 25-delta puts price meaningfully richer than 25-delta calls. Skew matters for risk-defined strategy selection: when downside puts are rich, put-credit spreads capture more premium; when upside calls are rich, call-credit spreads or covered-call writes harvest more.