How are BIIB 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 BIIB covered call priced from the end-of-day chain at a 30-day expiry (ATM IV 42.12%), the computed maximum profit is $1,624.00 per contract and the computed maximum loss is -$20,875.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a BIIB covered call?

The breakeven for the BIIB covered call priced on this page is roughly $208.76 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 BIIB market-implied 1-standard-deviation expected move is approximately 12.08%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current BIIB implied volatility affect this covered call?

BIIB ATM IV is at 42.12% with IV rank near 58.53%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.

BIIB Covered Call Strategy

BIIB (Biogen Inc.), in the Healthcare sector, (Drug Manufacturers - General industry), listed on NASDAQ.

Biogen Inc. is a leading biotechnology firm dedicated to the discovery, development, production, and distribution of treatments for complex neurological and neurodegenerative conditions. Its established portfolio includes a range of medications addressing multiple sclerosis (MS), such as TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA. For spinal muscular atrophy (SMA), Biogen provides SPINRAZA, while FUMADERM is available for the treatment of plaque psoriasis. Among its other key offerings is ADUHELM, specifically developed for Alzheimer's disease. The company also markets a selection of biosimilar drugs, including BENEPALI (an etanercept biosimilar akin to ENBREL), IMRALDI (an adalimumab biosimilar comparable to HUMIRA), and FLIXABI (an infliximab biosimilar referencing REMICADE). Further extending its therapeutic reach, Biogen supplies RITUXAN, prescribed for conditions like non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, certain types of ANCA-associated vasculitis, and pemphigus vulgaris.

BIIB (Biogen Inc.) trades in the Healthcare sector, specifically Drug Manufacturers - General, with a market capitalization of approximately $31.89B, a trailing P/E of 23.17, a beta of 0.18 versus the broader market, a 52-week range of 121.05-218.06, average daily share volume of 1.2M, a public-listing history dating back to 1991, approximately 8K full-time employees. These structural characteristics shape how BIIB stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 0.18 indicates BIIB 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 covered call on BIIB?

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 BIIB snapshot

As of June 30, 2026, spot at $216.21, ATM IV 42.12%, IV rank 58.53%, expected move 12.08%. The covered call on BIIB 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 31-day expiry.

Why this covered call structure on BIIB specifically: BIIB IV at 42.12% is mid-range versus its 1-year history, so the credit collected on a BIIB covered call sits in line with its long-run distribution, with a market-implied 1-standard-deviation move of approximately 12.08% (roughly $26.11 on the underlying). The 31-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated BIIB expiries trade a higher absolute premium for lower per-day decay. Position sizing on BIIB should anchor to the underlying notional of $216.21 per share and to the trader's directional view on BIIB stock.

BIIB covered call setup

The BIIB 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 BIIB near $216.21, the first option leg uses a $225.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed BIIB chain at a 31-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 BIIB shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 100 shares	Stock	$216.21	long
Sell 1	Call	$225.00	$7.45

BIIB covered call risk and reward

Net Premium / Debit: -$20,876.00
Max Profit (per contract): $1,624.00
Max Loss (per contract): -$20,875.00
Breakeven(s): $208.76
Risk / Reward Ratio: 0.078

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.

BIIB covered call payoff curve

Modeled P&L at expiration across a range of underlying prices for the covered call on BIIB. 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.

P&L at expiration across the modeled underlying-price range. Green shading marks profitable regions, red shading marks loss regions. Dotted purple verticals mark breakevens; the solid dark vertical marks current spot.

Underlying Price	% From Spot	P&L at Expiration
$0.01	-100.0%	-$20,875.00
$47.81	-77.9%	-$16,094.59
$95.62	-55.8%	-$11,314.18
$143.42	-33.7%	-$6,533.76
$191.23	-11.6%	-$1,753.35
$239.03	+10.6%	+$1,624.00
$286.83	+32.7%	+$1,624.00
$334.64	+54.8%	+$1,624.00
$382.44	+76.9%	+$1,624.00
$430.25	+99.0%	+$1,624.00

When traders use covered call on BIIB

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

BIIB thesis for this covered call

The market-implied 1-standard-deviation range for BIIB extends from approximately $190.10 on the downside to $242.32 on the upside. A BIIB covered call collects premium on an existing long BIIB position, trading off upside above the short call strike for immediate income; the short strike selection should reflect the trader's view on whether BIIB will breach that level within the expiration window. Current BIIB IV rank near 58.53% is mid-range against its 1-year distribution, so the IV signal is neutral; the covered call thesis on BIIB should anchor more to the directional view and the expected-move geometry. As a Healthcare name, BIIB options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to BIIB-specific events.

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

Frequently asked questions

What is a covered call on BIIB?: A covered call on BIIB is the covered call strategy applied to BIIB (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 BIIB stock trading near $216.21, the strikes shown on this page are snapped to the nearest listed BIIB chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are BIIB 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 BIIB covered call priced from the end-of-day chain at a 30-day expiry (ATM IV 42.12%), the computed maximum profit is $1,624.00 per contract and the computed maximum loss is -$20,875.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a BIIB covered call?: The breakeven for the BIIB covered call priced on this page is roughly $208.76 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 BIIB market-implied 1-standard-deviation expected move is approximately 12.08%; 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 BIIB?: Covered calls on BIIB are an income strategy run on existing BIIB 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 BIIB implied volatility affect this covered call?: BIIB ATM IV is at 42.12% with IV rank near 58.53%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.