MIRM Long Call Strategy
MIRM (Mirum Pharmaceuticals, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
Mirum Pharmaceuticals, Inc. is a biopharmaceutical firm dedicated to discovering and commercializing groundbreaking therapies for serious rare and orphan conditions. Its lead experimental drug, LIVMARLI, an oral treatment, is currently undergoing trials for progressive familial intrahepatic cholestasis (PFIC), Alagille syndrome, and biliary atresia. Furthermore, the company is advancing Volixibat to address intrahepatic cholestasis of pregnancy and primary sclerosing cholangitis. Founded in 2018, Mirum Pharmaceuticals, Inc. operates from its headquarters in Foster City, California.
MIRM (Mirum Pharmaceuticals, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $6.21B, a beta of 0.51 versus the broader market, a 52-week range of 47.89-124.44, average daily share volume of 960K, a public-listing history dating back to 2019, approximately 334 full-time employees. These structural characteristics shape how MIRM stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.51 indicates MIRM has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure.
What is a long call on MIRM?
A long call buys upside exposure with a fixed maximum loss equal to the premium paid; profit accrues if the underlying closes above the strike plus premium at expiration.
Current MIRM snapshot
As of June 30, 2026, spot at $116.91, ATM IV 38.90%, IV rank 17.05%, expected move 11.15%. The long call on MIRM 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 17-day expiry.
Why this long call structure on MIRM specifically: MIRM IV at 38.90% is on the cheap side of its 1-year range, which favors premium-buying structures like a MIRM long call, with a market-implied 1-standard-deviation move of approximately 11.15% (roughly $13.04 on the underlying). The 17-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated MIRM expiries trade a higher absolute premium for lower per-day decay. Position sizing on MIRM should anchor to the underlying notional of $116.91 per share and to the trader's directional view on MIRM stock.
MIRM long call setup
The MIRM long call below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With MIRM near $116.91, the first option leg uses a $115.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed MIRM chain at a 17-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 MIRM shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $115.00 | $5.45 |
MIRM long call risk and reward
- Net Premium / Debit
- -$545.00
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- -$545.00
- Breakeven(s)
- $120.45
- Risk / Reward Ratio
- Unbounded
Max profit is unbounded; max loss equals the premium paid times 100. Breakeven is strike plus premium.
MIRM long call payoff curve
Modeled P&L at expiration across a range of underlying prices for the long call on MIRM. 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% | -$545.00 |
| $25.86 | -77.9% | -$545.00 |
| $51.71 | -55.8% | -$545.00 |
| $77.56 | -33.7% | -$545.00 |
| $103.40 | -11.6% | -$545.00 |
| $129.25 | +10.6% | +$880.17 |
| $155.10 | +32.7% | +$3,465.01 |
| $180.95 | +54.8% | +$6,049.84 |
| $206.80 | +76.9% | +$8,634.67 |
| $232.65 | +99.0% | +$11,219.51 |
When traders use long call on MIRM
Long calls on MIRM express a bullish thesis with defined risk; traders use them ahead of MIRM catalysts (earnings, product launches, macro events) when the expected upside justifies the premium and theta decay.
MIRM thesis for this long call
The market-implied 1-standard-deviation range for MIRM extends from approximately $103.87 on the downside to $129.95 on the upside. A MIRM long call expresses a directional view that the underlying closes above the strike plus premium at expiration, ideally with implied volatility holding or expanding to preserve extrinsic value through the hold period. Current MIRM IV rank near 17.05% 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 MIRM at 38.90%. As a Healthcare name, MIRM options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to MIRM-specific events.
MIRM long call positions are structurally bullish; 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. MIRM positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move MIRM alongside the broader basket even when MIRM-specific fundamentals are unchanged. Long-premium structures like a long call on MIRM are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current MIRM chain quotes before placing a trade.
Frequently asked questions
- What is a long call on MIRM?
- A long call on MIRM is the long call strategy applied to MIRM (stock). The strategy is structurally bullish: A long call buys upside exposure with a fixed maximum loss equal to the premium paid; profit accrues if the underlying closes above the strike plus premium at expiration. With MIRM stock trading near $116.91, the strikes shown on this page are snapped to the nearest listed MIRM chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are MIRM long call max profit and max loss calculated?
- Max profit is unbounded; max loss equals the premium paid times 100. Breakeven is strike plus premium. For the MIRM long call priced from the end-of-day chain at a 30-day expiry (ATM IV 38.90%), the computed maximum profit is unbounded per contract and the computed maximum loss is -$545.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a MIRM long call?
- The breakeven for the MIRM long call priced on this page is roughly $120.45 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 MIRM market-implied 1-standard-deviation expected move is approximately 11.15%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a long call on MIRM?
- Long calls on MIRM express a bullish thesis with defined risk; traders use them ahead of MIRM catalysts (earnings, product launches, macro events) when the expected upside justifies the premium and theta decay.
- How does current MIRM implied volatility affect this long call?
- MIRM ATM IV is at 38.90% with IV rank near 17.05%, 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.