How are CSX straddle max profit and max loss calculated?

Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit. For the CSX straddle priced from the end-of-day chain at a 30-day expiry (ATM IV 25.10%), the computed maximum profit is unbounded per contract and the computed maximum loss is -$252.48 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a CSX straddle?

The breakeven for the CSX straddle priced on this page is roughly $43.45 and $48.55 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 CSX market-implied 1-standard-deviation expected move is approximately 7.20%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current CSX implied volatility affect this straddle?

CSX ATM IV is at 25.10% with IV rank near 25.38%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.

CSX Straddle Strategy

CSX (CSX Corporation), in the Industrials sector, (Railroads industry), listed on NASDAQ.

CSX Corporation, together with its subsidiaries, provides rail-based freight transportation services. The company offers rail services; and transportation of intermodal containers and trailers, as well as other transportation services, such as rail-to-truck transfers and bulk commodity operations. It transports chemicals, agricultural and food products, automotive, minerals, forest products, fertilizers, and metals and equipment; and coal, coke, and iron ore to electricity-generating power plants, steel manufacturers, and industrial plants, as well as exports coal to deep-water port facilities. The company also offers intermodal transportation services through a network of approximately 30 terminals transporting manufactured consumer goods in containers; and drayage services, including the pickup and delivery of intermodal shipments. It serves the automotive industry with distribution centers and storage locations, as well as connects non-rail served customers through transferring products, such as plastics and ethanol from rail to trucks. The company operates approximately 19,500 route mile rail network, which serves various population centers in 23 states east of the Mississippi River, the District of Columbia, and the Canadian provinces of Ontario and Quebec, as well as owns and leases approximately 3,500 locomotives.

CSX (CSX Corporation) trades in the Industrials sector, specifically Railroads, with a market capitalization of approximately $82.50B, a trailing P/E of 27.08, a beta of 1.24 versus the broader market, a 52-week range of 30.17-46.55, average daily share volume of 12.4M, a public-listing history dating back to 1980, approximately 23K full-time employees. These structural characteristics shape how CSX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 1.24 places CSX roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. CSX pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a straddle on CSX?

A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration.

Current CSX snapshot

As of May 15, 2026, spot at $45.74, ATM IV 25.10%, IV rank 25.38%, expected move 7.20%. The straddle on CSX 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 28-day expiry.

Why this straddle structure on CSX specifically: CSX IV at 25.10% is on the cheap side of its 1-year range, which favors premium-buying structures like a CSX straddle, with a market-implied 1-standard-deviation move of approximately 7.20% (roughly $3.29 on the underlying). The 28-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated CSX expiries trade a higher absolute premium for lower per-day decay. Position sizing on CSX should anchor to the underlying notional of $45.74 per share and to the trader's directional view on CSX stock.

CSX straddle setup

The CSX straddle below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With CSX near $45.74, the first option leg uses a $46.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed CSX chain at a 28-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 CSX shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$46.00	$1.13
Buy 1	Put	$46.00	$1.43

CSX straddle risk and reward

Net Premium / Debit: -$255.00
Max Profit (per contract): Unbounded
Max Loss (per contract): -$252.48
Breakeven(s): $43.45, $48.55
Risk / Reward Ratio: Unbounded

Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit.

CSX straddle payoff curve

Modeled P&L at expiration across a range of underlying prices for the straddle on CSX. 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.

Underlying Price	% From Spot	P&L at Expiration
$0.01	-100.0%	+$4,344.00
$10.12	-77.9%	+$3,332.77
$20.23	-55.8%	+$2,321.55
$30.35	-33.7%	+$1,310.32
$40.46	-11.5%	+$299.10
$50.57	+10.6%	+$202.13
$60.68	+32.7%	+$1,213.36
$70.80	+54.8%	+$2,224.58
$80.91	+76.9%	+$3,235.81
$91.02	+99.0%	+$4,247.04

When traders use straddle on CSX

Straddles on CSX are pure-volatility plays that profit from large moves in either direction; traders typically buy CSX straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.

CSX thesis for this straddle

The market-implied 1-standard-deviation range for CSX extends from approximately $42.45 on the downside to $49.03 on the upside. A CSX long straddle is a pure-volatility play: it profits when the underlying moves far enough from the strike in either direction to overcome the combined call plus put debit, regardless of direction. Current CSX IV rank near 25.38% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on CSX at 25.10%. As a Industrials name, CSX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to CSX-specific events.

CSX straddle positions are structurally neutral / high-volatility (long premium); 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. CSX positions also carry Industrials sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move CSX alongside the broader basket even when CSX-specific fundamentals are unchanged. Always rebuild the position from current CSX chain quotes before placing a trade.

Frequently asked questions

What is a straddle on CSX?: A straddle on CSX is the straddle strategy applied to CSX (stock). The strategy is structurally neutral / high-volatility (long premium): A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration. With CSX stock trading near $45.74, the strikes shown on this page are snapped to the nearest listed CSX chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are CSX straddle max profit and max loss calculated?: Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit. For the CSX straddle priced from the end-of-day chain at a 30-day expiry (ATM IV 25.10%), the computed maximum profit is unbounded per contract and the computed maximum loss is -$252.48 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a CSX straddle?: The breakeven for the CSX straddle priced on this page is roughly $43.45 and $48.55 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 CSX market-implied 1-standard-deviation expected move is approximately 7.20%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a straddle on CSX?: Straddles on CSX are pure-volatility plays that profit from large moves in either direction; traders typically buy CSX straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.
How does current CSX implied volatility affect this straddle?: CSX ATM IV is at 25.10% with IV rank near 25.38%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.