How are MOS bear put spread max profit and max loss calculated?

Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit. For the MOS bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 46.28%), the computed maximum profit is $52.50 per contract and the computed maximum loss is -$47.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a MOS bear put spread?

The breakeven for the MOS bear put spread priced on this page is roughly $20.53 at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current MOS market-implied 1-standard-deviation expected move is approximately 13.27%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current MOS implied volatility affect this bear put spread?

MOS ATM IV is at 46.28% with IV rank near 59.88%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.

MOS Bear Put Spread Strategy

MOS (The Mosaic Company), in the Basic Materials sector, (Agricultural Inputs industry), listed on NYSE.

Operating on a global scale via its various subsidiaries, The Mosaic Company specializes in the creation and distribution of concentrated phosphate and potash crop nutrients. Its business is structured into three distinct segments: Phosphates, Potash, and Mosaic Fertilizantes. The company maintains and operates its own mining facilities to extract raw materials, which are then processed into a diverse array of phosphate-based products. These offerings encompass crucial agricultural fertilizers such as diammonium phosphate (DAP), monoammonium phosphate (MAP), and various ammoniated phosphate compounds. Additionally, Mosaic produces phosphate-derived ingredients for animal feed, primarily marketed under the Biofos and Nexfos brands, along with K-Mag, a unique double sulfate of potash magnesia product. Beyond phosphates, Mosaic is a key producer and vendor of potash.

MOS (The Mosaic Company) trades in the Basic Materials sector, specifically Agricultural Inputs, with a market capitalization of approximately $7.11B, a trailing P/E of 9.78, a beta of 0.81 versus the broader market, a 52-week range of 19.8-38.23, average daily share volume of 9.2M, a public-listing history dating back to 1988, approximately 14K full-time employees. These structural characteristics shape how MOS stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 0.81 places MOS roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. The trailing P/E of 9.78 is on the value side, where IV often compresses outside event windows because forward growth expectations are already discounted into the share price. MOS pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a bear put spread on MOS?

A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width.

Current MOS snapshot

As of June 30, 2026, spot at $20.98, ATM IV 46.28%, IV rank 59.88%, expected move 13.27%. The bear put spread on MOS below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 31-day expiry.

Why this bear put spread structure on MOS specifically: MOS IV at 46.28% is mid-range versus its 1-year history, so strategy selection should anchor more to the directional thesis than to the IV regime, with a market-implied 1-standard-deviation move of approximately 13.27% (roughly $2.78 on the underlying). The 31-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated MOS expiries trade a higher absolute premium for lower per-day decay. Position sizing on MOS should anchor to the underlying notional of $20.98 per share and to the trader's directional view on MOS stock.

MOS bear put spread setup

The MOS bear put spread below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With MOS near $20.98, the first option leg uses a $21.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed MOS chain at a 31-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 MOS shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Put	$21.00	$1.08
Sell 1	Put	$20.00	$0.60

MOS bear put spread risk and reward

Net Premium / Debit: -$47.50
Max Profit (per contract): $52.50
Max Loss (per contract): -$47.50
Breakeven(s): $20.53
Risk / Reward Ratio: 1.105

Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit.

MOS bear put spread payoff curve

Modeled P&L at expiration across a range of underlying prices for the bear put spread on MOS. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.

P&L at expiration across the modeled underlying-price range. Green shading marks profitable regions, red shading marks loss regions. Dotted purple verticals mark breakevens; the solid dark vertical marks current spot.

Underlying Price	% From Spot	P&L at Expiration
$0.01	-100.0%	+$52.50
$4.65	-77.8%	+$52.50
$9.29	-55.7%	+$52.50
$13.92	-33.6%	+$52.50
$18.56	-11.5%	+$52.50
$23.20	+10.6%	-$47.50
$27.84	+32.7%	-$47.50
$32.47	+54.8%	-$47.50
$37.11	+76.9%	-$47.50
$41.75	+99.0%	-$47.50

When traders use bear put spread on MOS

Bear put spreads on MOS reduce the cost of a bearish MOS stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.

MOS thesis for this bear put spread

The market-implied 1-standard-deviation range for MOS extends from approximately $18.20 on the downside to $23.76 on the upside. A MOS bear put spread caps both the risk and the reward of a bearish position; relative to an outright long put on MOS, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current MOS IV rank near 59.88% is mid-range against its 1-year distribution, so the IV signal is neutral; the bear put spread thesis on MOS should anchor more to the directional view and the expected-move geometry. As a Basic Materials name, MOS options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to MOS-specific events.

MOS bear put spread positions are structurally moderately bearish; the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. MOS positions also carry Basic Materials sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move MOS alongside the broader basket even when MOS-specific fundamentals are unchanged. Long-premium structures like a bear put spread on MOS are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current MOS chain quotes before placing a trade.

Frequently asked questions

What is a bear put spread on MOS?: A bear put spread on MOS is the bear put spread strategy applied to MOS (stock). The strategy is structurally moderately bearish: A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width. With MOS stock trading near $20.98, the strikes shown on this page are snapped to the nearest listed MOS chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are MOS bear put spread max profit and max loss calculated?: Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit. For the MOS bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 46.28%), the computed maximum profit is $52.50 per contract and the computed maximum loss is -$47.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a MOS bear put spread?: The breakeven for the MOS bear put spread priced on this page is roughly $20.53 at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current MOS market-implied 1-standard-deviation expected move is approximately 13.27%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a bear put spread on MOS?: Bear put spreads on MOS reduce the cost of a bearish MOS stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
How does current MOS implied volatility affect this bear put spread?: MOS ATM IV is at 46.28% with IV rank near 59.88%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.