Stewart Information Services Corporation (STC) IV/HV History

Comparing implied volatility to historical (realized) volatility reveals whether options are priced rich or cheap relative to actual price movement. Persistent gaps can signal trading opportunities.

Stewart Information Services Corporation (STC) operates in the Financial Services sector, specifically the Insurance - Property & Casualty industry, with a market capitalization near $2.05B, listed on NYSE, employing roughly 6,800 people, carrying a beta of 1.01 to the broader market. Stewart Information Services Corporation (STC) operates as a key provider of title insurance and related services essential for real estate transactions, delivered through its various subsidiary entities. Led by Frederick Henry Eppinger Jr., public since 1973-02-21.

Snapshot as of Jun 29, 2026.

Spot Price
$66.83
ATM IV
409.1%
HV 20-Day
28.5%
HV 60-Day
34.3%
IV Rank
81.8%
IV Percentile
98.0%

As of Jun 29, 2026, Stewart Information Services Corporation (STC) ATM implied volatility is 409.1%. 20-day realized volatility is 28.5%, producing an IV-HV spread of +380.6 vol points. Options are pricing in more volatility than the stock has recently delivered, the volatility risk premium. IV rank is 81.8%.

How STC iv/hv history Data Feeds Strategy Selection

Strategy selection on Stewart Information Services Corporation options does not derive from any single metric in isolation. The iv/hv history view above sits inside a broader read: ATM IV currently sits at 409.1% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the iv/hv history 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 STC IV vs HV chart

The dual-line chart above tracks ATM implied volatility (forward-looking, what the chain is pricing) against 20-day realized historical volatility (backward-looking, what actually happened). ATM IV currently prints at 409.1%, 81.8% IV rank, against 28.5% realized over the trailing 20 trading days. Implied is pricing above realized by 380.6 vol points, the typical variance-risk-premium positive state in which premium sellers earn the gap. Persistent IV-above-HV is the variance-risk-premium-positive state typical of equity markets; persistent IV-below-HV is rare and usually marks underpriced vol that often expands.

STC IV/HV regimes and trade selection

STC sits in the top quartile of its 1-year IV range. High-IV-rank regimes statistically favor premium-selling - the elevated implied is more likely to mean-revert than to expand further. Iron condors, covered calls, and cash-secured puts collect more premium per unit of notional risk; size wings to the implied move and exit on first sign of HV catching up.

Using STC vol history alongside the term structure

The IV/HV gap on this page captures the level of premium; the term-structure slope on the volatility page captures its shape across expirations. Backwardation (negative slope -1.933) indicates acute near-term event risk - near-dated tenors price disproportionate vol. Pair the rank read with the slope read with the event calendar to choose the right tenor for the structure.

STC IV/HV signal in volatility-cycle context

Equity-vol cycles tend to compress and expand on multi-month timeframes: a typical sequence runs low-IV-rank consolidation (months of flat tape, decaying premium) into a vol-expansion catalyst (earnings miss, macro shock, regime change) into elevated-IV-rank stress (premiums fat, dispersion high) back to mean-reverting compression. STC's current 81.8% IV rank places the ticker in the expansion or stress phase of that cycle. Premium-selling carries the typical structural tailwind here, but the mean-reverting compression that completes the cycle has historically arrived sharply rather than gradually. The ratio of HV-20 (28.5%) to HV-60 (34.3%) gives a second cycle indicator: when 20-day exceeds 60-day, recent realization is running hotter than the trailing-quarter average - typically a sign that recent days have already started expanding vol regardless of where IV rank prints. Use the time series above to spot inflection points: meaningful IV/HV gap closures and openings tend to precede regime shifts by a few sessions.

Learn how implied vs realized volatility is reported and how to read the data →

Daily ATM implied volatility and 20-day realized (historical) volatility for STC over the last ~34 trading days. The IV-HV gap measures the variance risk premium - when IV trades persistently above realized HV, premium-sellers earn the spread; when IV dips below HV, vol is structurally underpriced.

STC ATM implied volatility versus 20-day realized volatility over the last several weeksSTC Implied vs Realized Volatility100%200%300%400%05-0406-22Trading DayVolatilityATM IVHV 20d
Daily values from end-of-day option_ticker_snapshots. Series sparse on illiquid tickers reflects gaps in the upstream end-of-day options data feed.

Most recent 15 trading days (descending). Older history appears in the chart above.

DateATM IVHV 20dHV 60dIV Rank
Jun 29, 2026409.1%28.5%34.3%81.8%
Jun 25, 2026350.5%26.7%34.1%69.5%
Jun 24, 2026248.2%23.6%33.2%48.1%
Jun 22, 202640.7%23.8%33.7%4.8%
Jun 18, 2026461.7%26.3%33.8%92.8%
Jun 17, 202637.2%25.9%33.9%4.0%
Jun 16, 202617.9%25.9%34.6%0.0%
Jun 12, 2026496.3%25.9%34.7%100.0%
Jun 11, 202681.8%26.6%35.0%12.5%
Jun 9, 2026269.4%27.9%35.1%52.2%
Jun 5, 2026193.1%27.5%35.2%36.1%
Jun 4, 202676.7%25.9%34.9%11.5%
Jun 3, 2026191.6%25.2%35.2%35.7%
Jun 2, 202663.6%24.8%35.2%8.7%
Jun 1, 202662.8%25.1%35.1%8.5%

Frequently asked STC iv/hv history questions

Is STC options pricing rich or cheap right now?
As of Jun 29, 2026, Stewart Information Services Corporation (STC) ATM IV is 409.1% against 20-day realized volatility of 28.5%. IV rank is 81.8%. STC options are pricing in more volatility than the stock has recently realized: a positive variance risk premium worth 380.6 vol points.
What is the STC variance risk premium?
The variance risk premium is the persistent gap between implied and subsequently realized volatility. In equity markets it averages positive because option sellers demand compensation for bearing variance shocks. STC is currently priced consistently with this premium, which is one input to whether short-vol or long-vol structures carry their typical edge.
What does STC IV rank mean for strategy selection?
IV rank normalizes the current ATM IV to its 1-year range: 0% is the low, 100% is the high. STC's current rank of 81.8% signals where current pricing sits in its own 1-year history. High-rank regimes typically favor premium-selling structures (credit spreads, condors, covered calls); low-rank regimes typically favor premium-buying or long-volatility structures.