NSA Butterfly Strategy
NSA (National Storage Affiliates Trust), in the Real Estate sector, (REIT - Industrial industry), listed on NYSE.
National Storage Affiliates Trust is a Maryland real estate investment trust focused on the ownership, operation and acquisition of self storage properties located within the top 100 metropolitan statistical areas throughout the United States. As of September 30, 2020, the Company held ownership interests in and operated 788 self storage properties located in 35 states and Puerto Rico with approximately 49.5 million rentable square feet. NSA is one of the largest owners and operators of self storage properties among public and private companies in the United States.
NSA (National Storage Affiliates Trust) trades in the Real Estate sector, specifically REIT - Industrial, with a market capitalization of approximately $3.28B, a trailing P/E of 41.77, a beta of 1.09 versus the broader market, a 52-week range of 27.43-44.015, average daily share volume of 1.8M, a public-listing history dating back to 2015, approximately 1K full-time employees. These structural characteristics shape how NSA stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 1.09 places NSA roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. The trailing P/E of 41.77 is on the rich side, which tends to correlate with higher earnings-window IV expansion as the market debates whether forward growth supports the multiple. NSA pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a butterfly on NSA?
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 NSA snapshot
As of May 15, 2026, spot at $40.97, ATM IV 18.40%, IV rank 1.34%, expected move 5.28%. The butterfly on NSA 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 NSA specifically: NSA IV at 18.40% is on the cheap side of its 1-year range, which favors premium-buying structures like a NSA butterfly, with a market-implied 1-standard-deviation move of approximately 5.28% (roughly $2.16 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 NSA expiries trade a higher absolute premium for lower per-day decay. Position sizing on NSA should anchor to the underlying notional of $40.97 per share and to the trader's directional view on NSA stock.
NSA butterfly setup
The NSA 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 NSA near $40.97, the first option leg uses a $38.92 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed NSA 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 NSA shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $38.92 | N/A |
| Sell 2 | Call | $40.97 | N/A |
| Buy 1 | Call | $43.02 | N/A |
NSA butterfly risk and reward
- Net Premium / Debit
- N/A
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- Unbounded
- Breakeven(s)
- None on modeled curve
- Risk / Reward Ratio
- N/A
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.
NSA butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on NSA. 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.
When traders use butterfly on NSA
Butterflies on NSA are pinning bets - traders use them when they expect NSA 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.
NSA thesis for this butterfly
The market-implied 1-standard-deviation range for NSA extends from approximately $38.81 on the downside to $43.13 on the upside. A NSA long call butterfly is a pinning play: it pays maximum at the middle strike if NSA settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current NSA IV rank near 1.34% 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 NSA at 18.40%. As a Real Estate name, NSA options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to NSA-specific events.
NSA 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. NSA positions also carry Real Estate sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move NSA alongside the broader basket even when NSA-specific fundamentals are unchanged. Always rebuild the position from current NSA chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on NSA?
- A butterfly on NSA is the butterfly strategy applied to NSA (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 NSA stock trading near $40.97, the strikes shown on this page are snapped to the nearest listed NSA chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are NSA 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 NSA butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 18.40%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a NSA butterfly?
- The breakeven for the NSA butterfly priced on this page is no defined breakeven on the modeled curve 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 NSA market-implied 1-standard-deviation expected move is approximately 5.28%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on NSA?
- Butterflies on NSA are pinning bets - traders use them when they expect NSA 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 NSA implied volatility affect this butterfly?
- NSA ATM IV is at 18.40% with IV rank near 1.34%, 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.