BLD Butterfly Strategy
BLD (TopBuild Corp.), in the Industrials sector, (Engineering & Construction industry), listed on NYSE.
TopBuild Corp., together with its subsidiaries, engages in the installation and distribution of insulation and other building products to the construction industry. The company operates in two segments, Installation and Specialty Distribution. It provides insulation products and accessories, glass and windows, rain gutters, afterpaint products, fireproofing products, garage doors, fireplaces, closet shelving, roofing materials, and other products; and insulation installation services. The company also offers various services and tools to assist builders in applying the principles of building science to new home construction, which include pre-construction plan reviews, diagnostic testing, and various inspection services; and home energy rating services. In addition, it distributes building and mechanical insulation, insulation accessories, and other building product materials for the residential, commercial, and industrial end markets. The company serves single-family homebuilders, single-family custom builders, multi-family builders, commercial general contractors, remodelers, and individual homeowners, as well as insulation contractors, gutter contractors, weatherization contractors, other contractors, dealers, metal building erectors, and modular home builders.
BLD (TopBuild Corp.) trades in the Industrials sector, specifically Engineering & Construction, with a market capitalization of approximately $11.51B, a trailing P/E of 22.73, a beta of 1.86 versus the broader market, a 52-week range of 273.87-559.468, average daily share volume of 612K, a public-listing history dating back to 2015, approximately 14K full-time employees. These structural characteristics shape how BLD stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 1.86 indicates BLD has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position.
What is a butterfly on BLD?
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 BLD snapshot
As of May 15, 2026, spot at $403.11, ATM IV 21.40%, IV rank 2.27%, expected move 6.14%. The butterfly on BLD 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 34-day expiry.
Why this butterfly structure on BLD specifically: BLD IV at 21.40% is on the cheap side of its 1-year range, which favors premium-buying structures like a BLD butterfly, with a market-implied 1-standard-deviation move of approximately 6.14% (roughly $24.73 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated BLD expiries trade a higher absolute premium for lower per-day decay. Position sizing on BLD should anchor to the underlying notional of $403.11 per share and to the trader's directional view on BLD stock.
BLD butterfly setup
The BLD 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 BLD near $403.11, the first option leg uses a $380.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed BLD chain at a 34-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 BLD shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $380.00 | $26.60 |
| Sell 2 | Call | $400.00 | $12.70 |
| Buy 1 | Call | $420.00 | $3.65 |
BLD butterfly risk and reward
- Net Premium / Debit
- -$485.00
- Max Profit (per contract)
- $1,406.07
- Max Loss (per contract)
- -$485.00
- Breakeven(s)
- $384.85, $415.15
- Risk / Reward Ratio
- 2.899
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.
BLD butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on BLD. 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% | -$485.00 |
| $89.14 | -77.9% | -$485.00 |
| $178.27 | -55.8% | -$485.00 |
| $267.40 | -33.7% | -$485.00 |
| $356.52 | -11.6% | -$485.00 |
| $445.65 | +10.6% | -$485.00 |
| $534.78 | +32.7% | -$485.00 |
| $623.91 | +54.8% | -$485.00 |
| $713.04 | +76.9% | -$485.00 |
| $802.17 | +99.0% | -$485.00 |
When traders use butterfly on BLD
Butterflies on BLD are pinning bets - traders use them when they expect BLD 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.
BLD thesis for this butterfly
The market-implied 1-standard-deviation range for BLD extends from approximately $378.38 on the downside to $427.84 on the upside. A BLD long call butterfly is a pinning play: it pays maximum at the middle strike if BLD settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current BLD IV rank near 2.27% 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 BLD at 21.40%. As a Industrials name, BLD options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to BLD-specific events.
BLD 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. BLD positions also carry Industrials sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move BLD alongside the broader basket even when BLD-specific fundamentals are unchanged. Always rebuild the position from current BLD chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on BLD?
- A butterfly on BLD is the butterfly strategy applied to BLD (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 BLD stock trading near $403.11, the strikes shown on this page are snapped to the nearest listed BLD chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are BLD 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 BLD butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 21.40%), the computed maximum profit is $1,406.07 per contract and the computed maximum loss is -$485.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a BLD butterfly?
- The breakeven for the BLD butterfly priced on this page is roughly $384.85 and $415.15 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 BLD market-implied 1-standard-deviation expected move is approximately 6.14%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on BLD?
- Butterflies on BLD are pinning bets - traders use them when they expect BLD 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 BLD implied volatility affect this butterfly?
- BLD ATM IV is at 21.40% with IV rank near 2.27%, 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.