Atmos Energy (ATO) Options Chain
NYSE: ATOUtilitiesOil/Gas TransmissionUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $161.66
- Put/call ratio (OI)
- 0.38
- Put/call ratio (volume)
- 1.83
- Expected move
- ±$11.33
- Open interest (C / P)
- 229 / 86
ATO options summary
The ATO options chain for the November 20, 2026 expiration lists 5 call and 7 put contracts, with 40 days until expiration. Open interest stands at 229 calls and 86 puts, a put/call ratio of 0.38, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $160.00 strike is 21.2%, which implies the market expects a move of about ±$11.33 (7.0%) in Atmos Energy stock by expiration.
The most open interest sits at the $170.00 call (174 contracts) and the $150.00 put (28 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ATO options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 110.00 | 0.00 | 2.15 | 0.10 | |||||
| — | — | — | 120.00 | 0.00 | 1.35 | 0.14 | |||||
| — | — | — | 145.00 | 0.00 | 2.80 | 1.10 | |||||
| — | — | — | 150.00 | 0.05 | 2.30 | 1.60 | |||||
| 7.65 | 7.50 | 9.50 | 155.00 | 1.25 | 2.05 | 1.63 | |||||
| 3.80 | 4.90 | 5.80 | 160.00 | 2.70 | 3.40 | 4.10 | |||||
| 2.05 | 2.05 | 3.70 | 165.00 | 4.20 | 6.90 | 7.40 | |||||
| 1.15 | 0.05 | 1.75 | 170.00 | — | — | — | |||||
| 0.85 | 0.00 | 1.25 | 175.00 | — | — | — | |||||
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 ATO put/call ratio?
For the November 20, 2026 expiration, the ATO put/call ratio based on open interest is 0.38 (86 puts vs 229 calls), and 1.83 based on today's volume. A ratio above 1 means more puts than calls.
What is ATO's implied volatility?
At-the-money implied volatility for ATO options expiring November 20, 2026 is about 21.2%, an annualized estimate of how much the market expects Atmos Energy stock to move.
How many ATO option expiration dates are there?
ATO has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.