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TGEN · Tecogen Inc.

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$3.16 +0.03 (+0.80%)
Market Cap
$94.49M
Shares
30.19M

Options Chain

Underlying $3.16 · today Options Calculator

Positioning

Sep 18, 2026 · 10 days to expiry · 6 contracts · mixed daily-bar sessions · Aug 19, 2026–Sep 3, 2026; 1 unknown
Put / call OI
0.24
Call-heavy positioning
Open interest
169
as of Sep 3, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$5.00
$1.85 above spot

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Bid Ask Last Strike Last Bid Ask Δ IV Vol OI
13 10 $0.40 $1.05 $1.05 $0.11 $0.00 $0.15 1 2
91 1 $0.00 $0.05 $0.03 $1.85 $1.50 $2.15 30 31
32 1 $0.00 $0.35 $0.04 $3.80 $4.90
About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Aug 19, 2026–Sep 3, 2026; 1 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1537435 CUSIP 87876P201 13F (30d) 46 filings 46 filers Visit website Investor relations