How are GATX butterfly max profit and max loss calculated?

Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit. For the GATX butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 25.10%), the computed maximum profit is $468.26 per contract and the computed maximum loss is -$470.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a GATX butterfly?

The breakeven for the GATX butterfly priced on this page is roughly $175.30 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 GATX 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 GATX implied volatility affect this butterfly?

GATX ATM IV is at 25.10% with IV rank near 2.36%, 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.

GATX Butterfly Strategy

GATX (GATX Corporation), in the Industrials sector, (Rental & Leasing Services industry), listed on NYSE.

GATX Corporation operates as railcar leasing company in the United States and internationally. The company operates through three segments: Rail North America, Rail International, and Portfolio Management. It leases tank and freight railcars, and locomotives for petroleum, chemical, food/agriculture, and transportation industries. The company also offers services, including the interior cleaning of railcars, routine maintenance and repair of car body and safety appliances, regulatory compliance works, wheelset replacements, interior blast and lining operations, exterior blast and painting, and car stenciling. In addition, it leases aircraft spare engines, directly-owned aircraft spare engines, and five liquefied gas-carrying vessels, as well as manages portfolios of assets for third parties. The company owns a fleet of approximately 147,000 railcars; 539 four-axle and 29 six-axle locomotives; and 5 vessels.

GATX (GATX Corporation) trades in the Industrials sector, specifically Rental & Leasing Services, with a market capitalization of approximately $6.38B, a trailing P/E of 18.86, a beta of 1.25 versus the broader market, a 52-week range of 143.46-205.56, average daily share volume of 213K, a public-listing history dating back to 1920, approximately 2K full-time employees. These structural characteristics shape how GATX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 1.25 places GATX roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. GATX pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a butterfly on GATX?

A long call butterfly buys one lower-strike call, sells two ATM calls, and buys one higher-strike call, paying a small net debit for a defined-risk position that maxes out if the underlying pins the middle strike at expiration.

Current GATX snapshot

As of May 15, 2026, spot at $171.97, ATM IV 25.10%, IV rank 2.36%, expected move 7.20%. The butterfly on GATX 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 34-day expiry.

Why this butterfly structure on GATX specifically: GATX IV at 25.10% is on the cheap side of its 1-year range, which favors premium-buying structures like a GATX butterfly, with a market-implied 1-standard-deviation move of approximately 7.20% (roughly $12.37 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated GATX expiries trade a higher absolute premium for lower per-day decay. Position sizing on GATX should anchor to the underlying notional of $171.97 per share and to the trader's directional view on GATX stock.

GATX butterfly setup

The GATX butterfly below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With GATX near $171.97, the first option leg uses a $165.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed GATX chain at a 34-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 GATX shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$165.00	$10.50
Sell 2	Call	$170.00	$6.75
Buy 1	Call	$180.00	$2.70

GATX butterfly risk and reward

Net Premium / Debit: +$30.00
Max Profit (per contract): $468.26
Max Loss (per contract): -$470.00
Breakeven(s): $175.30
Risk / Reward Ratio: 0.996

Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit.

GATX butterfly payoff curve

Modeled P&L at expiration across a range of underlying prices for the butterfly on GATX. 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%	+$30.00
$38.03	-77.9%	+$30.00
$76.05	-55.8%	+$30.00
$114.08	-33.7%	+$30.00
$152.10	-11.6%	+$30.00
$190.12	+10.6%	-$470.00
$228.14	+32.7%	-$470.00
$266.17	+54.8%	-$470.00
$304.19	+76.9%	-$470.00
$342.21	+99.0%	-$470.00

When traders use butterfly on GATX

Butterflies on GATX are pinning bets - traders use them when they expect GATX to settle near a specific level at expiration (often the prior close, a round number, or the max-pain strike) and want defined-risk exposure to that outcome.

GATX thesis for this butterfly

The market-implied 1-standard-deviation range for GATX extends from approximately $159.60 on the downside to $184.34 on the upside. A GATX long call butterfly is a pinning play: it pays maximum at the middle strike if GATX settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current GATX IV rank near 2.36% 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 GATX at 25.10%. As a Industrials name, GATX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to GATX-specific events.

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

Frequently asked questions

What is a butterfly on GATX?: A butterfly on GATX is the butterfly strategy applied to GATX (stock). The strategy is structurally neutral / pin (limited-risk, limited-reward): A long call butterfly buys one lower-strike call, sells two ATM calls, and buys one higher-strike call, paying a small net debit for a defined-risk position that maxes out if the underlying pins the middle strike at expiration. With GATX stock trading near $171.97, the strikes shown on this page are snapped to the nearest listed GATX chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are GATX butterfly max profit and max loss calculated?: Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit. For the GATX butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 25.10%), the computed maximum profit is $468.26 per contract and the computed maximum loss is -$470.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a GATX butterfly?: The breakeven for the GATX butterfly priced on this page is roughly $175.30 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 GATX 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 butterfly on GATX?: Butterflies on GATX are pinning bets - traders use them when they expect GATX to settle near a specific level at expiration (often the prior close, a round number, or the max-pain strike) and want defined-risk exposure to that outcome.
How does current GATX implied volatility affect this butterfly?: GATX ATM IV is at 25.10% with IV rank near 2.36%, 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.