Alamo Group (ALG) Options Chain
NYSE: ALGIndustrialsIndustrial Machinery/ComponentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 69
- Share price
- $152.42
- Put/call ratio (OI)
- 0.48
- Put/call ratio (volume)
- 0.80
- Expected move
- ±$45.47
- Open interest (C / P)
- 33 / 16
ALG options summary
The ALG options chain for the December 18, 2026 expiration lists 8 call and 10 put contracts, with 69 days until expiration. Open interest stands at 33 calls and 16 puts, a put/call ratio of 0.48, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $150.00 strike is 68.6%, which implies the market expects a move of about ±$45.47 (29.8%) in Alamo Group stock by expiration.
The most open interest sits at the $185.00 call (16 contracts) and the $110.00 put (5 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ALG options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 105.00 | 0.00 | 4.80 | 1.55 | |||||
| — | — | — | 110.00 | 0.00 | 4.80 | 2.18 | |||||
| — | — | — | 115.00 | 0.05 | 4.90 | 1.70 | |||||
| — | — | — | 130.00 | 2.55 | 7.40 | 3.04 | |||||
| — | — | — | 140.00 | 0.50 | 4.90 | 2.42 | |||||
| 17.80 | 0.00 | 0.00 | 145.00 | 1.15 | 6.00 | 5.60 | |||||
| 28.50 | 25.00 | 29.40 | 150.00 | 4.20 | 8.90 | 8.50 | |||||
| 18.00 | 14.00 | 18.50 | 165.00 | — | — | — | |||||
| — | — | — | 170.00 | 10.40 | 15.00 | 17.00 | |||||
| 2.00 | 1.40 | 3.40 | 175.00 | — | — | — | |||||
| 4.50 | 0.05 | 4.90 | 180.00 | — | — | — | |||||
| 2.85 | 0.00 | 4.90 | 185.00 | — | — | — | |||||
| 2.50 | 1.80 | 6.50 | 195.00 | — | — | — | |||||
| — | — | — | 200.00 | 0.00 | 0.00 | 39.50 | |||||
| 1.90 | 0.00 | 4.80 | 210.00 | 0.00 | 0.00 | 60.00 | |||||
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 ALG put/call ratio?
For the December 18, 2026 expiration, the ALG put/call ratio based on open interest is 0.48 (16 puts vs 33 calls), and 0.80 based on today's volume. A ratio above 1 means more puts than calls.
What is ALG's implied volatility?
At-the-money implied volatility for ALG options expiring December 18, 2026 is about 68.6%, an annualized estimate of how much the market expects Alamo Group stock to move.
How many ALG option expiration dates are there?
ALG has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.