Tecogen (TGEN) Options Chain
NYSE: TGENIndustrialsIndustrial Machinery/ComponentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 96
- Share price
- $2.42
- Put/call ratio (OI)
- 0.30
- Put/call ratio (volume)
- 2.09
- ATM implied volatility
- 141.6%
- Expected move
- ±$1.76
- Open interest (C / P)
- 3.59K / 1.07K
TGEN options summary
The TGEN options chain for the January 15, 2027 expiration lists 5 call and 4 put contracts, with 96 days until expiration. Open interest stands at 3,593 calls and 1,075 puts, a put/call ratio of 0.30, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 141.6%, which implies the market expects a move of about ±$1.76 (72.6%) in Tecogen stock by expiration.
The most open interest sits at the $7.50 call (1.44K contracts) and the $5.00 put (704 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TGEN options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.30 | 0.45 | 1.10 | 2.50 | 0.35 | 0.90 | 0.60 | |||||
| 0.20 | 0.05 | 0.50 | 5.00 | 2.30 | 3.00 | 2.55 | |||||
| 0.24 | 0.00 | 0.40 | 7.50 | 4.40 | 5.50 | 4.86 | |||||
| 0.15 | 0.00 | 0.35 | 10.00 | 6.20 | 7.70 | 6.91 | |||||
| 0.21 | 0.00 | 0.35 | 12.50 | — | — | — | |||||
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 January 15, 2027 expiration, the TGEN put/call ratio based on open interest is 0.30 (1,075 puts vs 3,593 calls), and 2.09 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 January 15, 2027 is about 141.6%, 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.