How are SEPN covered call max profit and max loss calculated?

Max profit equals short-strike minus cost basis plus premium times 100; max loss is cost basis minus premium (at zero). Breakeven is cost basis minus premium. For the SEPN covered call priced from the end-of-day chain at a 30-day expiry (ATM IV 64.80%), the computed maximum profit is $305.50 per contract and the computed maximum loss is -$2,593.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a SEPN covered call?

The breakeven for the SEPN covered call priced on this page is roughly $25.95 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 SEPN market-implied 1-standard-deviation expected move is approximately 18.58%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current SEPN implied volatility affect this covered call?

SEPN ATM IV is at 64.80% with IV rank near 7.57%, 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.

SEPN Covered Call Strategy

SEPN (Septerna, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.

Septerna, Inc., a clinical-stage biotechnology company, discovers and develops G protein-coupled receptor (GPCR) oral small molecule products candidates for the treatment of endocrinology, immunology and inflammation, and metabolic diseases. The company develops SEP-786, an oral small molecule PTH1R agonist for hypoparathyroidism; SEP-631, an oral small molecule MRGPRX2 NAM for chronic spontaneous urticaria and other mast cell diseases; TSHR Program, an oral small molecule TSHR NAM for Graves' disease and thyroid eye disease. It also develops oral small molecule single- and multi-incretin receptor agonists for metabolic disorders including obesity and type 2 diabetes. Septerna, Inc. was formerly known as GPCR NewCo, Inc. and changed its name to Septerna Inc. in June 2021. The company was incorporated in 2019 and is headquartered in South San Francisco, California.

SEPN (Septerna, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $1.12B, a beta of 2.20 versus the broader market, a 52-week range of 8.86-32.63, average daily share volume of 319K, a public-listing history dating back to 2024, approximately 75 full-time employees. These structural characteristics shape how SEPN stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 2.20 indicates SEPN 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 covered call on SEPN?

A covered call pairs long stock with a short out-of-the-money call, collecting premium and capping upside above the short strike in exchange for income.

Current SEPN snapshot

As of May 15, 2026, spot at $27.27, ATM IV 64.80%, IV rank 7.57%, expected move 18.58%. The covered call on SEPN 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 covered call structure on SEPN specifically: SEPN IV at 64.80% is on the cheap side of its 1-year range, which means a premium-selling SEPN covered call collects less credit per unit of strike-width risk, with a market-implied 1-standard-deviation move of approximately 18.58% (roughly $5.07 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 SEPN expiries trade a higher absolute premium for lower per-day decay. Position sizing on SEPN should anchor to the underlying notional of $27.27 per share and to the trader's directional view on SEPN stock.

SEPN covered call setup

The SEPN covered 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 SEPN near $27.27, the first option leg uses a $29.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed SEPN 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 SEPN shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 100 shares	Stock	$27.27	long
Sell 1	Call	$29.00	$1.33

SEPN covered call risk and reward

Net Premium / Debit: -$2,594.50
Max Profit (per contract): $305.50
Max Loss (per contract): -$2,593.50
Breakeven(s): $25.95
Risk / Reward Ratio: 0.118

Max profit equals short-strike minus cost basis plus premium times 100; max loss is cost basis minus premium (at zero). Breakeven is cost basis minus premium.

SEPN covered call payoff curve

Modeled P&L at expiration across a range of underlying prices for the covered call on SEPN. 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%	-$2,593.50
$6.04	-77.9%	-$1,990.66
$12.07	-55.8%	-$1,387.81
$18.10	-33.6%	-$784.97
$24.12	-11.5%	-$182.12
$30.15	+10.6%	+$305.50
$36.18	+32.7%	+$305.50
$42.21	+54.8%	+$305.50
$48.24	+76.9%	+$305.50
$54.27	+99.0%	+$305.50

When traders use covered call on SEPN

Covered calls on SEPN are an income strategy run on existing SEPN stock positions; traders typically sell calls at 25-35 delta with 30-45 days to expiration to balance premium against upside cap.

SEPN thesis for this covered call

The market-implied 1-standard-deviation range for SEPN extends from approximately $22.20 on the downside to $32.34 on the upside. A SEPN covered call collects premium on an existing long SEPN position, trading off upside above the short call strike for immediate income; the short strike selection should reflect the trader's view on whether SEPN will breach that level within the expiration window. Current SEPN IV rank near 7.57% 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 SEPN at 64.80%. As a Healthcare name, SEPN options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to SEPN-specific events.

SEPN covered call positions are structurally neutral to slightly 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. SEPN positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move SEPN alongside the broader basket even when SEPN-specific fundamentals are unchanged. Short-premium structures like a covered call on SEPN carry tail risk when realized volatility exceeds the implied move; review historical SEPN earnings reactions and macro stress periods before sizing. Always rebuild the position from current SEPN chain quotes before placing a trade.

Frequently asked questions

What is a covered call on SEPN?: A covered call on SEPN is the covered call strategy applied to SEPN (stock). The strategy is structurally neutral to slightly bullish: A covered call pairs long stock with a short out-of-the-money call, collecting premium and capping upside above the short strike in exchange for income. With SEPN stock trading near $27.27, the strikes shown on this page are snapped to the nearest listed SEPN chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are SEPN covered call max profit and max loss calculated?: Max profit equals short-strike minus cost basis plus premium times 100; max loss is cost basis minus premium (at zero). Breakeven is cost basis minus premium. For the SEPN covered call priced from the end-of-day chain at a 30-day expiry (ATM IV 64.80%), the computed maximum profit is $305.50 per contract and the computed maximum loss is -$2,593.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a SEPN covered call?: The breakeven for the SEPN covered call priced on this page is roughly $25.95 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 SEPN market-implied 1-standard-deviation expected move is approximately 18.58%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a covered call on SEPN?: Covered calls on SEPN are an income strategy run on existing SEPN stock positions; traders typically sell calls at 25-35 delta with 30-45 days to expiration to balance premium against upside cap.
How does current SEPN implied volatility affect this covered call?: SEPN ATM IV is at 64.80% with IV rank near 7.57%, 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.