Tecogen (TGEN) Options Chain
NYSE: TGENIndustrialsIndustrial Machinery/ComponentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 222
- Share price
- $2.42
- Put/call ratio (OI)
- 0.66
- Put/call ratio (volume)
- 0.31
- ATM implied volatility
- 134.8%
- Expected move
- ±$2.54
- Open interest (C / P)
- 50 / 33
TGEN options summary
The TGEN options chain for the May 21, 2027 expiration lists 3 call and 3 put contracts, with 222 days until expiration. Open interest stands at 50 calls and 33 puts, a put/call ratio of 0.66, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 134.8%, which implies the market expects a move of about ±$2.54 (105.1%) in Tecogen stock by expiration.
The most open interest sits at the $2.50 call (24 contracts) and the $2.50 put (16 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TGEN options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.10 | 0.80 | 1.10 | 2.50 | 0.75 | 1.30 | 1.00 | |||||
| 0.55 | 0.25 | 0.90 | 5.00 | 2.65 | 3.50 | 2.70 | |||||
| 0.64 | 0.00 | 0.85 | 7.50 | 4.30 | 6.60 | 5.05 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the TGEN put/call ratio?
For the May 21, 2027 expiration, the TGEN put/call ratio based on open interest is 0.66 (33 puts vs 50 calls), and 0.31 based on today's volume. A ratio above 1 means more puts than calls.
What is TGEN's implied volatility?
At-the-money implied volatility for TGEN options expiring May 21, 2027 is about 134.8%, an annualized estimate of how much the market expects Tecogen stock to move.
How many TGEN option expiration dates are there?
TGEN has 5 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.