JMST Butterfly Strategy
JMST (JPMorgan Ultra-Short Municipal Income ETF), in the Financial Services sector, (Asset Management - Income industry), listed on CBOE.
Under normal circumstances, the fund invests at least 80% of its assets in municipal securities, the income from which is exempt from federal income tax. For purposes of this policy, "Assets" means net assets, plus the amount of borrowings for investment purposes. Up to 100% of the fund's assets may be invested in short-term municipal instruments such as variable rate demand notes, short-term municipal notes and tax-exempt commercial paper.
JMST (JPMorgan Ultra-Short Municipal Income ETF) trades in the Financial Services sector, specifically Asset Management - Income, with a market capitalization of approximately $6.23B, a beta of 0.08 versus the broader market, a 52-week range of 50.71-51.13, average daily share volume of 1.0M, a public-listing history dating back to 2018. These structural characteristics shape how JMST etf options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.08 indicates JMST has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. JMST pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a butterfly on JMST?
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 JMST snapshot
As of May 15, 2026, spot at $50.86, ATM IV 12.90%, IV rank 2.52%, expected move 3.70%. The butterfly on JMST 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 JMST specifically: JMST IV at 12.90% is on the cheap side of its 1-year range, which favors premium-buying structures like a JMST butterfly, with a market-implied 1-standard-deviation move of approximately 3.70% (roughly $1.88 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 JMST expiries trade a higher absolute premium for lower per-day decay. Position sizing on JMST should anchor to the underlying notional of $50.86 per share and to the trader's directional view on JMST etf.
JMST butterfly setup
The JMST 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 JMST near $50.86, the first option leg uses a $48.32 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed JMST 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 JMST shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $48.32 | N/A |
| Sell 2 | Call | $50.86 | N/A |
| Buy 1 | Call | $53.40 | N/A |
JMST 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.
JMST butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on JMST. 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 JMST
Butterflies on JMST are pinning bets - traders use them when they expect JMST 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.
JMST thesis for this butterfly
The market-implied 1-standard-deviation range for JMST extends from approximately $48.98 on the downside to $52.74 on the upside. A JMST long call butterfly is a pinning play: it pays maximum at the middle strike if JMST settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current JMST IV rank near 2.52% 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 JMST at 12.90%. As a Financial Services name, JMST options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to JMST-specific events.
JMST 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. JMST positions also carry Financial Services sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move JMST alongside the broader basket even when JMST-specific fundamentals are unchanged. Always rebuild the position from current JMST chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on JMST?
- A butterfly on JMST is the butterfly strategy applied to JMST (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 JMST etf trading near $50.86, the strikes shown on this page are snapped to the nearest listed JMST chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are JMST 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 JMST butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 12.90%), 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 JMST butterfly?
- The breakeven for the JMST 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 JMST market-implied 1-standard-deviation expected move is approximately 3.70%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on JMST?
- Butterflies on JMST are pinning bets - traders use them when they expect JMST 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 JMST implied volatility affect this butterfly?
- JMST ATM IV is at 12.90% with IV rank near 2.52%, 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.