Tecogen Inc. (TGEN) 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.
Tecogen Inc. (TGEN) operates in the Industrials sector, specifically the Electrical Equipment & Parts industry, with a market capitalization near $151.6M, listed on AMEX, employing roughly 91 people, carrying a beta of 2.04 to the broader market. Tecogen Inc. Led by Abinand Rangesh, public since 2014-05-20.
Snapshot as of May 15, 2026.
- Spot Price
- $6.48
- ATM IV
- 133.3%
- HV 20-Day
- 178.3%
- HV 60-Day
- 146.0%
- IV Rank
- 27.1%
- IV Percentile
- 39.4%
As of May 15, 2026, Tecogen Inc. (TGEN) ATM implied volatility is 133.3%. 20-day realized volatility is 178.3%, producing an IV-HV spread of -45.0 vol points. Realized volatility currently exceeds implied, an inversion that can signal a pending IV expansion. IV rank is 27.1%.
How TGEN iv/hv history Data Feeds Strategy Selection
Strategy selection on Tecogen 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 133.3% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. 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.
Learn how implied vs realized volatility is reported and how to read the data →
Frequently asked TGEN iv/hv history questions
- Is TGEN options pricing rich or cheap right now?
- As of May 15, 2026, Tecogen Inc. (TGEN) ATM IV is 133.3% against 20-day realized volatility of 178.3%. IV rank is 27.1%. Realized volatility currently exceeds implied: an inversion of the typical equity volatility risk premium that often precedes IV expansion.
- What is the TGEN 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. TGEN 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 TGEN 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. TGEN's current rank of 27.1% 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.