How are MGC 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 MGC butterfly priced from the August 14, 2026 end-of-day chain at a 30-day expiry (ATM IV 13.20%), the computed maximum profit is $897.82 per contract and the computed maximum loss is -$565.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a MGC butterfly?

The breakeven for the MGC butterfly priced on this page is roughly $275.65 and $294.35 at expiration, derived from the August 14, 2026 end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The MGC market-implied 1-standard-deviation expected move in the same options snapshot is approximately 3.78%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current MGC implied volatility affect this butterfly?

MGC ATM IV is at 13.20% with IV rank near 0.74%, 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.

MGC Butterfly Strategy

MGC (Vanguard Morningstar Mega Cap ETF), in the Financial Services sector, (Asset Management industry), listed on AMEX.

This ETF, the Vanguard Mega Cap, is designed to replicate the performance of the CRSP US Mega Cap Index. It employs a passively managed, full-replication approach, purchasing all constituents of its benchmark. The fund provides a straightforward avenue for diversified investment into the premier U.S. companies, collectively representing approximately the leading 70% of domestic market capitalization. Regarding 75% of its total assets, the fund is subject to specific limitations: it may not buy more than 10% of any single issuer's voting shares, nor invest in a company if that allocation would cause more than 5% of the fund's total assets to be held in that issuer's securities. However, these restrictions are waived if exceeding them is necessary to precisely approximate the target index's composition. Notably, these concentration limits do not apply to obligations issued by the U.S. government or its associated agencies and instrumentalities.

MGC (Vanguard Morningstar Mega Cap ETF) trades in the Financial Services sector, specifically Asset Management, with a market capitalization of approximately $11.00B, a beta of 1.03 versus the broader market, a 52-week range of 228.37-285.55, average daily share volume of 104K, a public-listing history dating back to 2007. These structural characteristics shape how MGC etf options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 1.03 places MGC roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. MGC pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a butterfly on MGC?

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.

MGC snapshot

As of August 14, 2026, spot at $283.94, ATM IV 13.20%, IV rank 0.74%, expected move 3.78%. The butterfly on MGC below is built from the August 14, 2026 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 MGC specifically: MGC IV at 13.20% is on the cheap side of its 1-year range, which favors premium-buying structures like a MGC butterfly, with a market-implied 1-standard-deviation move of approximately 3.78% (roughly $10.75 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 MGC expiries trade a higher absolute premium for lower per-day decay. Position sizing on MGC should anchor to the underlying notional of $283.94 per share and to the trader's directional view on MGC etf.

MGC butterfly setup

The MGC butterfly below is built from the August 14, 2026 end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With MGC at $283.94 on that close, the first option leg uses a $270.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed MGC 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 MGC shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$270.00	$18.25
Sell 2	Call	$285.00	$7.00
Buy 1	Call	$300.00	$1.40

MGC butterfly risk and reward

Net Premium / Debit: -$565.00
Max Profit (per contract): $897.82
Max Loss (per contract): -$565.00
Breakeven(s): $275.65, $294.35
Risk / Reward Ratio: 1.589

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.

MGC butterfly payoff curve

Modeled P&L at expiration across a range of underlying prices for the butterfly on MGC. 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.

P&L at expiration across the modeled underlying-price range. Green shading marks profitable regions, red shading marks loss regions. Dotted purple verticals mark breakevens; the solid dark vertical marks current spot.

Underlying Price	% From Spot	P&L at Expiration
$0.01	-100.0%	-$565.00
$62.79	-77.9%	-$565.00
$125.57	-55.8%	-$565.00
$188.35	-33.7%	-$565.00
$251.13	-11.6%	-$565.00
$313.91	+10.6%	-$565.00
$376.69	+32.7%	-$565.00
$439.47	+54.8%	-$565.00
$502.25	+76.9%	-$565.00
$565.03	+99.0%	-$565.00

When traders use butterfly on MGC

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

MGC thesis for this butterfly

The market-implied 1-standard-deviation range for MGC extends from approximately $273.19 on the downside to $294.69 on the upside. A MGC long call butterfly is a pinning play: it pays maximum at the middle strike if MGC settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current MGC IV rank near 0.74% 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 MGC at 13.20%. As a Financial Services name, MGC options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to MGC-specific events.

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

Frequently asked questions

What is a butterfly on MGC?: A butterfly on MGC is the butterfly strategy applied to MGC (etf). 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 MGC etf at $283.94 on the August 14, 2026 close, the strikes shown on this page are snapped to the nearest listed MGC chain strike and the premiums come straight from that session's bid/ask midpoint.
How are MGC 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 MGC butterfly priced from the August 14, 2026 end-of-day chain at a 30-day expiry (ATM IV 13.20%), the computed maximum profit is $897.82 per contract and the computed maximum loss is -$565.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a MGC butterfly?: The breakeven for the MGC butterfly priced on this page is roughly $275.65 and $294.35 at expiration, derived from the August 14, 2026 end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The MGC market-implied 1-standard-deviation expected move in the same options snapshot is approximately 3.78%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a butterfly on MGC?: Butterflies on MGC are pinning bets - traders use them when they expect MGC 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 MGC implied volatility affect this butterfly?: MGC ATM IV is at 13.20% with IV rank near 0.74%, 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.