Buying BA puts: hedge math and breakevens
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.
One Oct 30 $200 put on BA costs $900 and pays below $191. Read it as insurance and the number that matters is the premium as a share of what you're insuring: 4.5% of $19,807 for 33 days of cover.
The October 30, 2026expiry this analysis was built on has passed, so the contracts quoted below no longer trade. The structure and the strike-selection logic still hold; the prices do not. Open the builder for today’s strikes on the real chain.
The trade, priced from the chain
33d to October 30, 2026| Leg | Qty | Price | Δ | IV | Cash |
|---|---|---|---|---|---|
| BuyOct 30 $200 put | 1 | $9.00 | -0.50 | 36% | −$900 |
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 September 27, 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 put works
A long put is the right to sell 100 shares at $200 until October 30, 2026. Max loss is the $900 premium; max profit is $19,100, reached only if BA goes to zero.
Below $191 the position is in profit at expiry, gaining one-for-one with each dollar the stock falls. Above $200 it expires worthless — which is the good outcome if you own the shares.
Puts carry a structural headwind: skew. Downside strikes on BA trade at higher implied vol than equivalent upside strikes because everybody wants the same protection at the same time. You are buying the expensive wing, always.
As a hedge on 100 shares, this put caps the loss below $200 at the cost of 4.5% of position value — an annualized drag of 50.3% if you run it continuously. That is the honest price of permanent protection, and it is why most people don't.
When it makes sense
- You want defined-risk downside exposure to BA without the unlimited risk of a short stock position.
- You own shares and want protection through delivery numbers without selling and triggering a tax event.
- You are financing the hedge: a collar (long put + short call) makes protection cheaper by capping upside — worth pricing before buying the put outright.
- You can state the target as a price and a date, not as a direction. A structure with a ceiling needs both to be worth using.
Where the risk actually is
The modal outcome for a bought put is expiring worthless. BA above $200 at October 30, 2026 costs the full $900, and stocks drift up more often than down.
If you are hedging, be clear about what you are insuring. One put covers 100 shares — $19,807 of BA. A hedge that covers a quarter of your position is a quarter of a hedge.
Implied vol works against a debit buyer in both directions: pay too much for it at entry and the position needs a bigger move; watch it collapse after an event and the position loses even when the direction was right.
What is different about doing this on BA
Boeing's recovery thesis is a multi-year story being expressed in monthly options, which is the mismatch that has cost directional buyers the most. If the view is the order book and the delivery rate, the expiry needs to be measured in quarters and the structure needs to survive a headline that has nothing to do with the thesis.
BA's Oct 30 strikes are $5 apart near the money (2.52% of spot). On a ladder that wide, "pick the 0.30 delta strike" resolves to whichever rung happens to be closest — sometimes not close at all. 6.3k contracts of open interest on Oct 30 is thin, and a structure that needs four separate fills will pay for it. 17 strikes on that expiry — 81% 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.
Skew is inverted: the 25-delta CALL implies 1.6% more vol than the put. That is the market pricing upside risk above downside risk — a squeeze, a takeover rumour, or a crowded short. Owning upside on an inverted skew means paying the expensive side of the surface, which is worth knowing before you buy the call. 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 36% ATM implied vol, the Oct 30 options are pricing a one-standard-deviation move of $21.24 over 33 days — roughly −10.7% to +10.7%, or $176.83 to $219.31. That band is the free part of the move. Anything your structure needs beyond it is the part you have to be right about.
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
For hedging, the strike sets your deductible. For speculation, it sets your odds. On BA at $198.07:
| Band | What it means | When it fits |
|---|---|---|
| −0.70 Δ or deeper | ITM, mostly intrinsic | Tight protection, expensive. Behaves like short stock with a floor on the loss.On BA: the Oct 30 $210 put at $15.00, 79% annualized |
| −0.45 to −0.55 Δ | At the money | Maximum sensitivity per dollar. The construction quoted above.On BA: the Oct 30 $200 put at $9.00, 50% annualized |
| −0.25 to −0.35 Δ | OTM, the usual hedge band | A real deductible: you absorb the first leg down, the put covers the rest.On BA: the Oct 30 $190 put at $4.50, 26% annualized |
| −0.10 Δ or less | Crash protection | Cheap per contract and mostly worthless — pays only in a genuine tail event.On BA: the Oct 30 $175 put at $1.24, 8% annualized |
Compare the put IVs in the chain below with the calls at the same distance from spot. The gap is the skew, and it is the tax you pay for downside protection on BA.
Across the nine rungs below, the premium runs 13.7× from the cheapest strike to the richest — that curve is the whole strike-selection decision, drawn. Open interest concentrates at $195 on this expiry, which is usually where the fills are cleanest.
| Strike | vs spot | Mid | Δ | IV | % of strike | Ann. | OI |
|---|---|---|---|---|---|---|---|
| $175 | −11.6% | $1.24 | -0.11 | 37% | 0.7% | 8% | 358 |
| $180 | −9.1% | $1.83 | -0.16 | 36% | 1.0% | 11% | 225 |
| $185 | −6.6% | $2.89 | -0.22 | 34% | 1.6% | 17% | 319 |
| $190 | −4.1% | $4.50 | -0.31 | 35% | 2.4% | 26% | 364 |
| $195 | −1.5% | $6.35 | -0.40 | 35% | 3.3% | 36% | 515 |
| $200used | +1.0% | $9.00 | -0.50 | 36% | 4.5% | 50% | 241 |
| $205 | +3.5% | $11.03 | -0.60 | 34% | 5.4% | 60% | 132 |
| $210 | +6.0% | $15.00 | -0.70 | 32% | 7.1% | 79% | 142 |
| $215 | +8.5% | $17.00 | -0.79 | 32% | 7.9% | 87% | 41 |
BA puts expiring October 30, 2026· 15-min delayed capture · “Ann.” annualizes the mid as a percentage of the strike (the cash a cash-secured put sets aside) over 33 days.
Managing the position
- For a standing hedge, compare against a collar every roll — selling an upside call can cut the cost to near zero.
- Do not hold a losing speculative put into the final week; the remaining extrinsic value decays fastest exactly when you are least likely to be rescued.
- Never leg out of a defined-risk structure. Closing the short leg of a spread that is working converts a known maximum loss into an open-ended one, usually at the worst possible moment.
- Roll a winner out rather than up. Adding strikes to a working directional trade compounds the same view; extending the clock keeps the risk you already sized.
Common mistakes
Treating the put as a short
Short stock has no expiry. This put does — October 30, 2026. Being right in October about a September put pays nothing.
Under-hedging and calling it hedged
One contract insures 100 shares, $19,807 of exposure. Count your shares before counting contracts.
Holding through the decay to avoid booking a loss
Time value leaves a losing position fastest at the end. Waiting for a recovery is paying the steepest part of the curve for the privilege.
BA long put FAQ
How much does a BA put cost?
The Oct 30 $200 put marked $9.00 per share — $900 per contract, covering 100 shares worth $19,807. That is 4.5% of the position for 33 days of cover.
What is the breakeven on this BA put?
$191 at October 30, 2026 — strike minus premium. Below that the put is profitable at expiry.
How much is BA expected to move by Oct 30?
The Oct 30 options imply a one-standard-deviation move of $21.24 — about 10.7% of the BA share price — over the 33 days to expiry. That is the market's estimate, not a forecast: roughly a third of the time the actual move is larger.
How wide are BA option strikes?
About $5 apart near the money on the Oct 30 expiry — 2.52% 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.
Related reading
- Strike selection with delta and IV"Sell the 30 delta" is the most repeated rule in retail options and nobody can tell you what it means. Here is what delta actually measures, where it stops matching probability, and how far off it gets on a high-IV name.
- Covered calls on shares you already ownThe covered-call math you find online divides premium by cost basis. If you bought the stock years ago, that number is a fantasy — and it will talk you into selling a strike you should never have touched.
- Why closing at $0.01 is wrongRecording an expired option as a close at $0.01 costs almost nothing in dollars. What it does to assignment history, cost basis and your recorded win rate is a $599 hole in the middle of a wheel — here is the arithmetic.
Other BA strategies
- BA covered callSell upside on shares you already own and get paid for the cap.
- BA cash-secured putGet paid to place a limit order below the market.
- BA iron condorSell a range, buy the wings, collect if the stock stays put.
- BA bull call spreadBuy a call, sell a higher one — cheaper upside with a ceiling.
- BA bull put spreadSell a put spread below the market: credit now, defined risk.
- BA long straddleBuy the call and the put — pay for a move in either direction.
- BA long strangleOTM call plus OTM put — cheaper than a straddle, needs more move.
- BA long callDefined-risk upside with a deadline attached.
- BA calendar call spreadSell the near-dated call, buy the far one — rent time twice.