How are FLS 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 FLS butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 40.80%), the computed maximum profit is $428.76 per contract and the computed maximum loss is -$55.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a FLS butterfly?

The breakeven for the FLS butterfly priced on this page is roughly $60.55 and $69.45 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 FLS market-implied 1-standard-deviation expected move is approximately 11.70%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current FLS implied volatility affect this butterfly?

FLS ATM IV is at 40.80% with IV rank near 43.59%, 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.

FLS Butterfly Strategy

FLS (Flowserve Corporation), in the Industrials sector, (Industrial - Machinery industry), listed on NYSE.

Flowserve Corporation designs, develops, manufactures, distributes, and services industrial flow management equipment in the United States, Europe, the Middle East, Africa, Asia, and internationally. It operates in two segments, Flowserve Pump Division (FPD) and Flow Control Division (FCD). The FPD segment offers custom and pre-configured pumps and pump systems, mechanical seals, auxiliary systems, replacement parts, upgrades, and related aftermarket services, including installation and commissioning services, seal systems spare parts, repairs, advanced diagnostics, re-rate and upgrade solutions, retrofit programs, and machining and asset management solutions, as well as manufactures a gas-lubricated mechanical seal for use in high-speed compressors for gas pipelines. The FCD segment provides engineered and industrial valve and automation solutions, including isolation and control valves, actuation, controls, and related equipment, as well as equipment maintenance services for flow control systems, including advanced diagnostics, repair, installation, commissioning, retrofit programs, and field machining capabilities. This segment's products are used to control, direct, and manage the flow of liquids, gases, and fluids. The company primarily serves oil and gas, chemical and pharmaceuticals, power generation, and water management markets, as well as general industries, including mining and ore processing, pulp and paper, food and beverage, and other smaller applications.

FLS (Flowserve Corporation) trades in the Industrials sector, specifically Industrial - Machinery, with a market capitalization of approximately $8.49B, a trailing P/E of 23.93, a beta of 1.25 versus the broader market, a 52-week range of 45.11-92.41, average daily share volume of 2.2M, a public-listing history dating back to 1980, approximately 16K full-time employees. These structural characteristics shape how FLS stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

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

What is a butterfly on FLS?

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 FLS snapshot

As of May 15, 2026, spot at $65.16, ATM IV 40.80%, IV rank 43.59%, expected move 11.70%. The butterfly on FLS 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 63-day expiry.

Why this butterfly structure on FLS specifically: FLS IV at 40.80% 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 11.70% (roughly $7.62 on the underlying). The 63-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated FLS expiries trade a higher absolute premium for lower per-day decay. Position sizing on FLS should anchor to the underlying notional of $65.16 per share and to the trader's directional view on FLS stock.

FLS butterfly setup

The FLS 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 FLS near $65.16, the first option leg uses a $60.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed FLS chain at a 63-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 FLS shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$60.00	$8.00
Sell 2	Call	$65.00	$5.00
Buy 1	Call	$70.00	$2.55

FLS butterfly risk and reward

Net Premium / Debit: -$55.00
Max Profit (per contract): $428.76
Max Loss (per contract): -$55.00
Breakeven(s): $60.55, $69.45
Risk / Reward Ratio: 7.796

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.

FLS butterfly payoff curve

Modeled P&L at expiration across a range of underlying prices for the butterfly on FLS. 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%	-$55.00
$14.42	-77.9%	-$55.00
$28.82	-55.8%	-$55.00
$43.23	-33.7%	-$55.00
$57.63	-11.5%	-$55.00
$72.04	+10.6%	-$55.00
$86.45	+32.7%	-$55.00
$100.85	+54.8%	-$55.00
$115.26	+76.9%	-$55.00
$129.67	+99.0%	-$55.00

When traders use butterfly on FLS

Butterflies on FLS are pinning bets - traders use them when they expect FLS 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.

FLS thesis for this butterfly

The market-implied 1-standard-deviation range for FLS extends from approximately $57.54 on the downside to $72.78 on the upside. A FLS long call butterfly is a pinning play: it pays maximum at the middle strike if FLS settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current FLS IV rank near 43.59% is mid-range against its 1-year distribution, so the IV signal is neutral; the butterfly thesis on FLS should anchor more to the directional view and the expected-move geometry. As a Industrials name, FLS options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to FLS-specific events.

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

Frequently asked questions

What is a butterfly on FLS?: A butterfly on FLS is the butterfly strategy applied to FLS (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 FLS stock trading near $65.16, the strikes shown on this page are snapped to the nearest listed FLS chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are FLS 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 FLS butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 40.80%), the computed maximum profit is $428.76 per contract and the computed maximum loss is -$55.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a FLS butterfly?: The breakeven for the FLS butterfly priced on this page is roughly $60.55 and $69.45 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 FLS market-implied 1-standard-deviation expected move is approximately 11.70%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a butterfly on FLS?: Butterflies on FLS are pinning bets - traders use them when they expect FLS 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 FLS implied volatility affect this butterfly?: FLS ATM IV is at 40.80% with IV rank near 43.59%, 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.