How are TAC straddle max profit and max loss calculated?

Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit. For the TAC straddle priced from the end-of-day chain at a 30-day expiry (ATM IV 60.00%), the computed maximum profit is unbounded per contract and the computed maximum loss is -$192.22 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a TAC straddle?

The breakeven for the TAC straddle priced on this page is roughly $12.08 and $15.93 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 TAC market-implied 1-standard-deviation expected move is approximately 17.20%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current TAC implied volatility affect this straddle?

TAC ATM IV is at 60.00% with IV rank near 10.01%, 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.

TAC Straddle Strategy

TAC (TransAlta Corporation), in the Utilities sector, (Independent Power Producers industry), listed on NYSE.

TransAlta Corporation specializes in the ownership, operation, and expansion of a diverse array of electricity generation facilities, with a geographical presence spanning Canada, the United States, and Australia. The company's activities are organized into four key divisions: Hydro, Wind and Solar, Gas, and Energy Transition. Within its portfolio, TransAlta operates plants powered by hydroelectric, wind, solar, natural gas, and even coal. Beyond generating power, TransAlta is active in the wholesale trading of electricity, energy commodities, and financial derivatives. Its operations also encompass related mining ventures and the management of natural gas pipelines. The firm caters to a broad spectrum of clients, including municipalities, various industrial and commercial enterprises, and other utility providers.

TAC (TransAlta Corporation) trades in the Utilities sector, specifically Independent Power Producers, with a market capitalization of approximately $4.11B, a beta of 0.49 versus the broader market, a 52-week range of 10.28-17.88, average daily share volume of 1.5M, a public-listing history dating back to 2001, approximately 1K full-time employees. These structural characteristics shape how TAC stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 0.49 indicates TAC has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. TAC pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.

What is a straddle on TAC?

A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration.

Current TAC snapshot

As of June 30, 2026, spot at $13.79, ATM IV 60.00%, IV rank 10.01%, expected move 17.20%. The straddle on TAC 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 52-day expiry.

Why this straddle structure on TAC specifically: TAC IV at 60.00% is on the cheap side of its 1-year range, which favors premium-buying structures like a TAC straddle, with a market-implied 1-standard-deviation move of approximately 17.20% (roughly $2.37 on the underlying). The 52-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated TAC expiries trade a higher absolute premium for lower per-day decay. Position sizing on TAC should anchor to the underlying notional of $13.79 per share and to the trader's directional view on TAC stock.

TAC straddle setup

The TAC straddle below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With TAC near $13.79, the first option leg uses a $14.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed TAC chain at a 52-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 TAC shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$14.00	$0.90
Buy 1	Put	$14.00	$1.03

TAC straddle risk and reward

Net Premium / Debit: -$192.50
Max Profit (per contract): Unbounded
Max Loss (per contract): -$192.22
Breakeven(s): $12.08, $15.93
Risk / Reward Ratio: Unbounded

Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit.

TAC straddle payoff curve

Modeled P&L at expiration across a range of underlying prices for the straddle on TAC. 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	-99.9%	+$1,206.50
$3.06	-77.8%	+$901.71
$6.11	-55.7%	+$596.91
$9.15	-33.6%	+$292.12
$12.20	-11.5%	-$12.68
$15.25	+10.6%	-$67.53
$18.30	+32.7%	+$237.26
$21.35	+54.8%	+$542.06
$24.39	+76.9%	+$846.85
$27.44	+99.0%	+$1,151.65

When traders use straddle on TAC

Straddles on TAC are pure-volatility plays that profit from large moves in either direction; traders typically buy TAC straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.

TAC thesis for this straddle

The market-implied 1-standard-deviation range for TAC extends from approximately $11.42 on the downside to $16.16 on the upside. A TAC long straddle is a pure-volatility play: it profits when the underlying moves far enough from the strike in either direction to overcome the combined call plus put debit, regardless of direction. Current TAC IV rank near 10.01% 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 TAC at 60.00%. As a Utilities name, TAC options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to TAC-specific events.

TAC straddle positions are structurally neutral / high-volatility (long premium); 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. TAC positions also carry Utilities sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move TAC alongside the broader basket even when TAC-specific fundamentals are unchanged. Always rebuild the position from current TAC chain quotes before placing a trade.

Frequently asked questions

What is a straddle on TAC?: A straddle on TAC is the straddle strategy applied to TAC (stock). The strategy is structurally neutral / high-volatility (long premium): A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration. With TAC stock trading near $13.79, the strikes shown on this page are snapped to the nearest listed TAC chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are TAC straddle max profit and max loss calculated?: Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit. For the TAC straddle priced from the end-of-day chain at a 30-day expiry (ATM IV 60.00%), the computed maximum profit is unbounded per contract and the computed maximum loss is -$192.22 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a TAC straddle?: The breakeven for the TAC straddle priced on this page is roughly $12.08 and $15.93 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 TAC market-implied 1-standard-deviation expected move is approximately 17.20%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a straddle on TAC?: Straddles on TAC are pure-volatility plays that profit from large moves in either direction; traders typically buy TAC straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.
How does current TAC implied volatility affect this straddle?: TAC ATM IV is at 60.00% with IV rank near 10.01%, 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.