How are BLK 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 BLK butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 27.01%), the computed maximum profit is $3,550.99 per contract and the computed maximum loss is -$2,065.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a BLK butterfly?

The breakeven for the BLK butterfly priced on this page is roughly $1,040.65 and $1,119.35 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 BLK market-implied 1-standard-deviation expected move is approximately 7.74%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current BLK implied volatility affect this butterfly?

BLK ATM IV is at 27.01% with IV rank near 35.70%, 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.

BLK Butterfly Strategy

BLK (BlackRock, Inc.), in the Financial Services sector, (Asset Management industry), listed on NYSE.

BlackRock, Inc. is a publicly owned investment manager. The firm primarily provides its services to institutional, intermediary, and individual investors including corporate, public, union, and industry pension plans, insurance companies, third-party mutual funds, endowments, public institutions, governments, foundations, charities, sovereign wealth funds, corporations, official institutions, and banks. It also provides global risk management and advisory services. The firm manages separate client-focused equity, fixed income, and balanced portfolios. It also launches and manages open-end and closed-end mutual funds, offshore funds, unit trusts, and alternative investment vehicles including structured funds. The firm launches equity, fixed income, balanced, and real estate mutual funds.

BLK (BlackRock, Inc.) trades in the Financial Services sector, specifically Asset Management, with a market capitalization of approximately $169.98B, a trailing P/E of 27.16, a beta of 1.46 versus the broader market, a 52-week range of 917.39-1219.94, average daily share volume of 802K, a public-listing history dating back to 1999, approximately 23K full-time employees. These structural characteristics shape how BLK stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 1.46 indicates BLK has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position. BLK pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a butterfly on BLK?

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 BLK snapshot

As of May 15, 2026, spot at $1,081.59, ATM IV 27.01%, IV rank 35.70%, expected move 7.74%. The butterfly on BLK 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 butterfly structure on BLK specifically: BLK IV at 27.01% 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 7.74% (roughly $83.76 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 BLK expiries trade a higher absolute premium for lower per-day decay. Position sizing on BLK should anchor to the underlying notional of $1,081.59 per share and to the trader's directional view on BLK stock.

BLK butterfly setup

The BLK 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 BLK near $1,081.59, the first option leg uses a $1,030.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed BLK 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 BLK shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$1,030.00	$65.40
Sell 2	Call	$1,080.00	$32.00
Buy 1	Call	$1,140.00	$9.25

BLK butterfly risk and reward

Net Premium / Debit: -$1,065.00
Max Profit (per contract): $3,550.99
Max Loss (per contract): -$2,065.00
Breakeven(s): $1,040.65, $1,119.35
Risk / Reward Ratio: 1.720

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.

BLK butterfly payoff curve

Modeled P&L at expiration across a range of underlying prices for the butterfly on BLK. 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%	-$1,065.00
$239.15	-77.9%	-$1,065.00
$478.30	-55.8%	-$1,065.00
$717.44	-33.7%	-$1,065.00
$956.59	-11.6%	-$1,065.00
$1,195.73	+10.6%	-$2,065.00
$1,434.88	+32.7%	-$2,065.00
$1,674.02	+54.8%	-$2,065.00
$1,913.17	+76.9%	-$2,065.00
$2,152.31	+99.0%	-$2,065.00

When traders use butterfly on BLK

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

BLK thesis for this butterfly

The market-implied 1-standard-deviation range for BLK extends from approximately $997.83 on the downside to $1,165.35 on the upside. A BLK long call butterfly is a pinning play: it pays maximum at the middle strike if BLK settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current BLK IV rank near 35.70% is mid-range against its 1-year distribution, so the IV signal is neutral; the butterfly thesis on BLK should anchor more to the directional view and the expected-move geometry. As a Financial Services name, BLK options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to BLK-specific events.

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

Frequently asked questions

What is a butterfly on BLK?: A butterfly on BLK is the butterfly strategy applied to BLK (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 BLK stock trading near $1,081.59, the strikes shown on this page are snapped to the nearest listed BLK chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are BLK 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 BLK butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 27.01%), the computed maximum profit is $3,550.99 per contract and the computed maximum loss is -$2,065.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a BLK butterfly?: The breakeven for the BLK butterfly priced on this page is roughly $1,040.65 and $1,119.35 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 BLK market-implied 1-standard-deviation expected move is approximately 7.74%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a butterfly on BLK?: Butterflies on BLK are pinning bets - traders use them when they expect BLK 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 BLK implied volatility affect this butterfly?: BLK ATM IV is at 27.01% with IV rank near 35.70%, 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.