The Mosaic Company (MOS) options flow
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Options flow session · Last trade
The optional price chart loads separately. Recorded options trades are available below.
Session chart data
| Strike (USD) | Net GEX per 1% move (USD) |
|---|---|
| $16 | -$108,896 |
| $17.50 | -$210,804 |
| $18 | -$197,352 |
| $19 | -$142,838 |
| $20 | -$612,978 |
| $21 | $201,761 |
| $22.50 | -$120,892 |
| $25 | $141,864 |
| $30 | $137,471 |
| $32.50 | $70,397 |
| $35 | $159,489 |
| $40 | $78,548 |
MOS session snapshot
Bullflow recorded 3 MOS options trades on Monday, October 26, 2026, totaling $82,310 in premium. Calls made up $25.60K (31.1%) across 1 trades and puts $56.71K (68.9%) across 2 trades, a put/call premium ratio of 2.22.
0 trades were sweeps and 3 were blocks. 2 filled at or above the ask, 1 at or below the bid and 0 at the mid. The largest was a $42,210 block of 210 Mar 19, 2027 $17.50 Put trade at 10:59:44 ET, filled at the bid.
MOS closed at $17.71, down 0.73% from the prior close. Net gamma exposure was -$498.29K per 1% move at the Oct 26, 2026, 15:59:15 ET snapshot; the largest positive GEX strike was $21. By premium, MOS ranked 2 of 2 among the related tickers below.
- Company
- The Mosaic Company
- Exchange
- NYSE
- Sector
- Basic Materials
- Close
- $17.71
MOS options flow statistics
- Total premium
- $82.31K
- Recorded trades
- 3
- Call premium
- $25.60K
- Put premium
- $56.71K
- Put/call premium ratio
- 2.22
- Avg premium per trade
- $27.44K
- Calls / puts (trades)
- 1 / 2
- Sweeps / blocks
- 0 / 3
- At or above ask
- 2
- At or below bid
- 1
- Largest trade
- $42.21K
- Last trade
Where the premium went
in calls
$82.31K · 3 trades
Premium
Trade type
Fill side
MOS largest options trades
| Time | Contract | C/P | Premium | Size | Fill | Type |
|---|---|---|---|---|---|---|
| MOS Mar 19, 2027 $17.50 | Put | $42,210 | 210 | Bid | Block | |
| MOS Nov 20, 2026 $15 | Call | $25,600 | 80 | Ask | Block | |
| MOS Jan 21, 2028 $12.50 | Put | $14,500 | 116 | Ask | Block |
Each of the 3 largest trades had a different contract.
The 3 largest trades total $82.31K of $82.31K
MOS gamma exposure
- Spot at snapshot
- $17.70
- Net GEX per 1% move
- -$498.29K
- Largest positive strike
- $21
- Largest negative strike
- $20
Closing snapshot , 59 strikes across 13 expirations (Unavailable to Unavailable).
MOS options flow questions
What was the largest MOS options trade on October 26, 2026?
A $42,210 block of 210 MOS Mar 19, 2027 $17.50 Put trade at 10:59:44 ET, filled at the bid. It was the largest of 3 trades Bullflow recorded for MOS that session.
How much MOS options premium traded on October 26, 2026?
$82,310 across 3 recorded sweeps and blocks: $25,600 in calls (1 trades) and $56,710 in puts (2 trades).
Was MOS options flow bullish or bearish on October 26, 2026?
Calls were 31.1% of premium (put/call premium ratio 2.22). 1 of 3 trades filled at or below the bid and 2 at or above the ask. Premium and fill side do not show whether a trade opened or closed a position or was a hedge, so they do not establish direction on their own.
What are MOS's gamma exposure levels?
At the Oct 26, 2026 closing snapshot (15:59:15 ET, spot $17.70), MOS net GEX was -$498.29K per 1% move. The largest positive GEX strike was $21. The largest negative GEX strike was $20. The snapshot covers 59 strikes and 13 expirations.
How does MOS options flow compare with related stocks?
MOS ranked 2 of 2 by premium on Oct 26, 2026 among the tickers shown here. CLF $6.86M, MOS $82.31K led; MOS recorded $82.31K.
How often is MOS options flow data updated?
The page shows a completed session (October 26, 2026, last trade 15:53:48 ET) and updates after the next trading day becomes historical. Intraday MOS flow is in the Bullflow dashboard and API.
How to read this data
This summary covers recorded single-leg sweeps and blocks with positive premium, excluding cancelled trades. It describes the covered flow, not all options-market volume. Total premium is gross traded premium; it is not net buying pressure. The interactive dashboard can use different filters and may show different totals.
Calls, puts, and execution near the bid or ask provide context but do not establish whether a position was opened or closed, whether it was part of a hedge, or where the stock will move next. The session updates after the next trading day becomes historical.
Stock prices show regular-session candles delayed at least 15 minutes. The latest view refreshes during market hours; the flow-session view places recorded trades on their original date, using interpolated stock prices between candle samples. Gamma exposure shows its separately dated public closing snapshot.