Is FULC options pricing rich or cheap right now?

As of Jun 30, 2026, Fulcrum Therapeutics, Inc. (FULC) ATM IV is 206.2% against 20-day realized volatility of 263.2%. IV rank is 40.0%. Realized volatility currently exceeds implied: an inversion of the typical equity volatility risk premium that often precedes IV expansion.

What is the FULC 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. FULC is currently pricing inverted to the historical pattern, which is one input to whether short-vol or long-vol structures carry their typical edge.

What does FULC 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. FULC's current rank of 40.0% 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.

Fulcrum Therapeutics, Inc. (FULC) 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.

Fulcrum Therapeutics, Inc. (FULC) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $205.6M, listed on NASDAQ, employing roughly 45 people, carrying a beta of 2.92 to the broader market. Fulcrum Therapeutics, Inc. Led by Alexander C. Sapir, public since 2019-07-18.

Snapshot as of Jun 30, 2026.

Spot Price: $3.80
ATM IV: 206.2%
HV 20-Day: 263.2%
HV 60-Day: 164.3%
IV Rank: 40.0%
IV Percentile: 90.1%

As of Jun 30, 2026, Fulcrum Therapeutics, Inc. (FULC) ATM implied volatility is 206.2%. 20-day realized volatility is 263.2%, producing an IV-HV spread of -57.0 vol points. Realized volatility currently exceeds implied, an inversion that can signal a pending IV expansion. IV rank is 40.0%.

How FULC iv/hv history Data Feeds Strategy Selection

Strategy selection on Fulcrum Therapeutics, Inc. 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 206.2% 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 FULC 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 206.2%, 40.0% IV rank, against 263.2% realized over the trailing 20 trading days. Implied is currently below realized by 57.0 vol points, an inverted regime where premium buyers are underpaying for the move - rare and often a setup for IV expansion. 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.

FULC IV/HV regimes and trade selection

FULC IV rank at 40.0% sits mid-range - no structural edge from rank alone. Strategy choice should follow event calendar and the dealer-positioning read.

Using FULC 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 -0.127) 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.

FULC 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. FULC's 40.0% IV rank places the ticker in the mid-range of its 1-year window - no strong cycle-position signal. The ratio of HV-20 (263.2%) to HV-60 (164.3%) 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 FULC over the last ~37 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.

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.

Date	ATM IV	HV 20d	HV 60d	IV Rank
Jun 30, 2026	206.2%	263.2%	164.3%	40.0%
Jun 29, 2026	37.3%	263.2%	164.4%	5.3%
Jun 26, 2026	19.7%	262.4%	164.2%	1.7%
Jun 25, 2026	26.4%	262.7%	164.2%	3.1%
Jun 24, 2026	28.0%	263.3%	164.3%	3.4%
Jun 23, 2026	25.5%	263.5%	164.3%	2.9%
Jun 22, 2026	348.0%	263.9%	164.5%	69.2%
Jun 18, 2026	14.6%	265.7%	164.4%	0.7%
Jun 17, 2026	11.4%	264.8%	164.1%	0.0%
Jun 15, 2026	49.5%	267.8%	164.1%	4.0%
Jun 12, 2026	266.8%	267.6%	164.1%	50.5%
Jun 11, 2026	39.3%	268.6%	164.1%	1.8%
Jun 10, 2026	138.6%	268.8%	164.2%	23.1%
Jun 9, 2026	118.7%	268.7%	164.1%	18.8%
Jun 8, 2026	139.9%	267.6%	163.6%	23.4%

Frequently asked FULC iv/hv history questions

Is FULC options pricing rich or cheap right now?: As of Jun 30, 2026, Fulcrum Therapeutics, Inc. (FULC) ATM IV is 206.2% against 20-day realized volatility of 263.2%. IV rank is 40.0%. Realized volatility currently exceeds implied: an inversion of the typical equity volatility risk premium that often precedes IV expansion.
What is the FULC 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. FULC is currently pricing inverted to the historical pattern, which is one input to whether short-vol or long-vol structures carry their typical edge.
What does FULC 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. FULC's current rank of 40.0% 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.