What a BA straddle actually costs

$216.14Boeing Company · chain snapshot captured Aug 1, 2026

Headline-driven vol on an industrial balance sheet. IV stays elevated because the tail risk is genuinely fat — regulatory and safety news can reprice the stock 10% on a Tuesday with no earnings in sight.

Buying the Aug 28 $215 call and put together on BA costs $1,675. That is the market's price for 27 days of movement in either direction, and it is the cleanest read on what 34% implied vol actually means: BA has to close beyond $198.25 or $231.75 — a 7.7% move — before you make a cent.

The trade, priced from the chain

27d to August 28, 2026

Leg	Qty	Price	Δ	IV	Cash
BuyAug 28 $215 call	1	$9.30	0.55	35%	−$930
BuyAug 28 $215 put	1	$7.45	-0.45	34%	−$745

Net debit

$1,675

Max profit

Unlimited

Max loss

$1,675

Chance of profit

40%

Breakevens

$198.25 / $231.75

−8.3% / +7.2%

$186.53 – $243.47 price rangespot $216.14breakeven $198.25 · $231.75P/L at expiration

Open this long straddle in the builderLoads these exact legs and re-quotes them live. No account needed.

Every leg above is priced at the chain’s own quote — the identical number the builder will show you when you click through (last traded price), captured August 1, 2026 with a 15-minute delay. Only strikes whose print survives an implied-volatility check (within 20% of its own IV) and a no-arbitrage check across the ladder are priced here. Full methodology. Greeks, breakevens, max profit/loss and probability of profit are computed by OptionTracker’s engine at r = 4.2%. Educational analysis, not investment advice.

How a long straddle works

A straddle is a pure volatility position. Both legs sit at $215, so the structure starts delta-neutral: you have no directional opinion, only a view that the realized move will exceed the 7.7% the market is charging.

Max loss is the full $1,675 debit, suffered if BA pins exactly at $215 on August 28, 2026. Upside is unlimited above the call breakeven and very large below the put one — which is why the engine reports max profit as unlimited.

Theta is the enemy and it is brutal on an ATM straddle: both legs are pure extrinsic value, decaying every day, accelerating into expiry. The engine's 40% probability of profit reflects that — straddles are low-probability, high-payoff trades by construction.

Vega is the friend. Rising implied vol lifts both legs regardless of direction, which is why straddles are often bought weeks before delivery numbers and sold into it rather than held through it.

When it makes sense

You expect a move materially bigger than 7.7% and you genuinely do not know the direction.
You want long vega ahead of an event, with the intention of exiting before the crush rather than through it.
You need a hedge with unbounded convexity and can accept losing the entire premium.
The position is small enough that a total loss is uninteresting, because long-vol structures reach zero on a regular schedule.

Where the risk actually is

The classic straddle failure is being right and losing anyway: BA moves 4%, you needed 7.7%, and the IV crush after the event takes the rest. Buying a straddle the day before delivery numbers is a bet on the size of the move exceeding what everyone else already priced.

Time is a fixed cost. Over 27 days the position bleeds theta continuously, and the bleed accelerates in the final two weeks. A straddle held to expiry with no move loses 100%.

Pinning is not exotic. The most likely single close for a quiet underlying is near the strike you bought, and that is where a long-vol structure loses the most.

What is different about doing this on BA

One of the few large caps where owning vol without a dated catalyst is defensible: the headlines that move this stock do not appear on a calendar, so a long strangle is a bet on the arrival rate of news rather than on a specific print.

BA's Aug 28 strikes are $5 apart near the money (2.31% of spot). That is a coarse ladder: one rung is a large fraction of the implied move, so precision on the short strike is an illusion. 5.8k contracts of open interest on Aug 28 is thin, and a structure that needs four separate fills will pay for it. 15 strikes on that expiry — 36% of the board — carry prints that agree with their own implied volatility and hold up across the ladder, and those are the strikes priced here. Adequate but not deep; the usable ladder is short, and wide condors here are wider than the book really supports.

The surface is close to flat: only 1.1% between the 25-delta put and the 25-delta call. With so little skew, the wings on either side cost about the same in vol terms — unusual, and worth exploiting if your view is one-sided. The term structure is flat inside 1.5% between the two captured expiries, so there is no calendar edge to harvest and no event visibly priced into one month over the other.

At 34% ATM implied vol, the Aug 28 options are pricing a one-standard-deviation move of $20.15 over 27 days — roughly −9.3% to +9.3%, or $195.99 to $236.29. Owning vol here means believing BA covers more than 9.3% in 27 days, and covering it in time.

What actually goes wrong here, as opposed to in general: Assuming the risk lives on the earnings date. On Boeing it lives on every date.

Picking the strike on BA

A straddle is by definition ATM, so the choices are expiry and whether to widen into a strangle. Deltas on BA at $216.14:

Band	What it means	When it fits
ATM (0.50 Δ call + −0.50 Δ put)	The textbook straddle	Maximum vega and gamma per dollar; also maximum theta. The construction quoted above.On BA: the Aug 28 $215 put at $7.45, 47% annualized
Nearest listed strike	Rarely exactly 0.50 Δ	On BA the closest strike to $216.14 is $215 — a small directional lean is unavoidable.
Widen to a strangle	Cheaper, needs a bigger move	Lower debit, worse breakevens. Compare both before committing.
Longer expiry	More vega, slower decay	If the thesis is vol expansion rather than a dated event, buy time.

The Aug 28 call chain below shows how quickly extrinsic value falls away from the money — that curve is exactly what you are paying for when you buy both sides at the same strike.

Across the nine rungs below, the premium runs 33.2× from the cheapest strike to the richest — that curve is the whole strike-selection decision, drawn. Open interest concentrates at $200 on this expiry, which is usually where the fills are cleanest.

BA 2026-08-28 puts around the money: strike, distance from spot, mid price, delta, implied volatility and open interest.
Strike	vs spot	Mid	Δ	IV	% of spot	Ann.	OI
$190	−12.1%	$0.78	-0.08	36%	0.4%	5%	87
$195	−9.8%	$1.42	-0.13	35%	0.7%	9%	189
$200	−7.5%	$2.19	-0.19	35%	1.0%	14%	428
$205	−5.2%	$3.35	-0.26	34%	1.5%	21%	204
$210	−2.8%	$5.10	-0.35	34%	2.4%	32%	188
$215used	−0.5%	$7.45	-0.45	34%	3.4%	47%	204
$220	+1.8%	$10.15	-0.55	34%	4.7%	63%	34
$230	+6.4%	$16.05	-0.73	34%	7.4%	100%	38
$240	+11.0%	$25.90	-0.88	33%	12.0%	162%	46

BA puts expiring August 28, 2026· 15-min delayed capture · “Ann.” annualizes the mid as a percentage of spot over 27 days.

Managing the position

Have a target before you enter. "The move happened" is not an exit; $2,513 is.
Sell into vol expansion, not after it. The best straddle exits are on the IV spike, not the day the news lands.
Enter long vol before the crowd and exit into the bid. The reliable money in owning volatility comes from the ramp in implied vol, not from the realized move after it.
Delta-hedging turns a directional accident back into a vol position, but only if you actually do it on a schedule. Ad-hoc hedging is just trading the stock with extra steps.

Common mistakes

Buying the straddle the day before the event

Everyone knows the event is coming, so IV already prices it. The $1,675 you pay is the consensus estimate of the move; you need to beat it, not match it.

Confusing a big move with a profit

Breakevens are $198.25 and $231.75. A 3.9% move — which feels dramatic intraday — still loses money here.

Buying vol without a view on vol

Owning a straddle because the chart looks coiled is a directional trade with worse odds. The question is whether implied is cheap relative to what the stock will realize, and that needs a number.

BA long straddle FAQ

How big a move does the BA straddle need?

7.7% in either direction by August 28, 2026 — breakevens sit at $198.25 and $231.75. That is the implied move the 34% IV is quoting for 27 days.

What is the max loss?

$1,675 — the full debit — realized if BA closes exactly at $215 on August 28, 2026. Practically, any close near the strike loses most of it.

Is BA option skew favouring puts or calls?

Puts. On the captured Aug 28 chain the 25-delta put implies 1.1% more volatility than the 25-delta call, which is the market charging more for downside protection than for upside exposure.

How wide are BA option strikes?

About $5 apart near the money on the Aug 28 expiry — 2.31% of the share price per rung. That sets how precisely you can place a short strike, and how granular a spread's width can be.

Build it yourself

Everything above is one construction at one moment. Open it in the builder to drag strikes along the ladder, scrub the expiry, and watch max profit, breakevens and probability of profit recompute live against the real BA chain — free, no account.

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