PRAX Butterfly Strategy
PRAX (Praxis Precision Medicines, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
Praxis Precision Medicines, Inc. is a biopharmaceutical firm operating at the clinical stage, dedicated to creating innovative treatments for central nervous system (CNS) conditions that stem from an imbalance in neuronal activity. The company's primary investigational compounds currently undergoing evaluation include: PRAX-114, an extrasynaptic-preferring positive allosteric modulator of the GABAA receptor, which is currently in Phase IIa clinical trials for addressing both major depressive disorder and perimenopausal depression. Additionally, PRAX-944, a small molecule designed to selectively inhibit T-type calcium channels, is also progressing through Phase IIa clinical trials to manage essential tremor. Beyond these, Praxis is also advancing a pipeline of other promising drug candidates, such as: PRAX-562, a persistent sodium current blocker, undergoing Phase I clinical evaluation for treating severe pediatric epilepsy and adult cephalgia (headaches). PRAX-222, an antisense oligonucleotide (ASO) aimed at individuals suffering from gain-of-function (GOF) SCN2A epilepsy. And a program targeting KCNT1 for the treatment of KCNT1 GOF epilepsy.
PRAX (Praxis Precision Medicines, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $6.93B, a beta of 2.75 versus the broader market, a 52-week range of 37.19-366.52, average daily share volume of 460K, a public-listing history dating back to 2020, approximately 116 full-time employees. These structural characteristics shape how PRAX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 2.75 indicates PRAX 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 PRAX?
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 PRAX snapshot
As of June 26, 2026, spot at $317.58, ATM IV 56.80%, IV rank 3.17%, expected move 16.28%. The butterfly on PRAX 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 18-day expiry.
Why this butterfly structure on PRAX specifically: PRAX IV at 56.80% is on the cheap side of its 1-year range, which favors premium-buying structures like a PRAX butterfly, with a market-implied 1-standard-deviation move of approximately 16.28% (roughly $51.72 on the underlying). The 18-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated PRAX expiries trade a higher absolute premium for lower per-day decay. Position sizing on PRAX should anchor to the underlying notional of $317.58 per share and to the trader's directional view on PRAX stock.
PRAX butterfly setup
The PRAX 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 PRAX near $317.58, the first option leg uses a $300.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed PRAX chain at a 18-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 PRAX shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $300.00 | $50.00 |
| Sell 2 | Call | $320.00 | $34.70 |
| Buy 1 | Call | $330.00 | $28.25 |
PRAX butterfly risk and reward
- Net Premium / Debit
- -$885.00
- Max Profit (per contract)
- $1,033.09
- Max Loss (per contract)
- -$885.00
- Breakeven(s)
- $308.85
- Risk / Reward Ratio
- 1.167
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.
PRAX butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on PRAX. 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% | -$885.00 |
| $70.23 | -77.9% | -$885.00 |
| $140.45 | -55.8% | -$885.00 |
| $210.66 | -33.7% | -$885.00 |
| $280.88 | -11.6% | -$885.00 |
| $351.10 | +10.6% | +$115.00 |
| $421.32 | +32.7% | +$115.00 |
| $491.53 | +54.8% | +$115.00 |
| $561.75 | +76.9% | +$115.00 |
| $631.97 | +99.0% | +$115.00 |
When traders use butterfly on PRAX
Butterflies on PRAX are pinning bets - traders use them when they expect PRAX 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.
PRAX thesis for this butterfly
The market-implied 1-standard-deviation range for PRAX extends from approximately $265.86 on the downside to $369.30 on the upside. A PRAX long call butterfly is a pinning play: it pays maximum at the middle strike if PRAX settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current PRAX IV rank near 3.17% 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 PRAX at 56.80%. As a Healthcare name, PRAX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to PRAX-specific events.
PRAX 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. PRAX positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move PRAX alongside the broader basket even when PRAX-specific fundamentals are unchanged. Always rebuild the position from current PRAX chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on PRAX?
- A butterfly on PRAX is the butterfly strategy applied to PRAX (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 PRAX stock trading near $317.58, the strikes shown on this page are snapped to the nearest listed PRAX chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are PRAX 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 PRAX butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 56.80%), the computed maximum profit is $1,033.09 per contract and the computed maximum loss is -$885.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a PRAX butterfly?
- The breakeven for the PRAX butterfly priced on this page is roughly $308.85 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 PRAX market-implied 1-standard-deviation expected move is approximately 16.28%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on PRAX?
- Butterflies on PRAX are pinning bets - traders use them when they expect PRAX 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 PRAX implied volatility affect this butterfly?
- PRAX ATM IV is at 56.80% with IV rank near 3.17%, 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.