Brazil Potash (GRO) Options Chain
NYSE: GROIndustrialsMining & Quarrying of Nonmetallic Minerals (No Fuels)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 6
- Share price
- $2.14
- Put/call ratio (OI)
- 0.19
- Put/call ratio (volume)
- 0.05
- ATM implied volatility
- 193.0%
- Expected move
- ±$0.5295
- Open interest (C / P)
- 21 / 4
GRO options summary
The GRO options chain for the October 16, 2026 expiration lists 2 call and 1 put contracts, with 6 days until expiration. Open interest stands at 21 calls and 4 puts, a put/call ratio of 0.19, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 193.0%, which implies the market expects a move of about ±$0.5295 (24.7%) in Brazil Potash stock by expiration.
The most open interest sits at the $2.50 call (16 contracts) and the $2.50 put (4 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GRO options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.07 | 0.00 | 0.20 | 2.50 | 0.00 | 0.95 | 0.40 | |||||
| 0.10 | 0.00 | 0.05 | 5.00 | — | — | — | |||||
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 GRO put/call ratio?
For the October 16, 2026 expiration, the GRO put/call ratio based on open interest is 0.19 (4 puts vs 21 calls), and 0.05 based on today's volume. A ratio above 1 means more puts than calls.
What is GRO's implied volatility?
At-the-money implied volatility for GRO options expiring October 16, 2026 is about 193.0%, an annualized estimate of how much the market expects Brazil Potash stock to move.
How many GRO option expiration dates are there?
GRO has 4 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.