
CASE STUDIES / OPTIONALITY · OCT 2025
A European utility holding cancellable supply and regas slots owns embedded call options. Dropping a costly firm cargo for cheaper US spot pays in every regime, and the value grows with volatility.
+$0.20/MMBtu
AVERAGE EXTRINSIC UPLIFT OF CANCELLATION RIGHTS AT BASE VOLATILITY · $0.45 UNDER STRESS
01 · THE BOOK
Firm supply into Italy and northwest Europe, all cancellable for a fee, against partly cancellable demand, with spot outlets in the US, China and India. The regas slots at OLT Livorno come from auctions; leaving one unused costs the slot tariff on the undelivered volume. Every cancellation right is an embedded call option, and this study prices it path by path.
BASE SLOT COST $0.50/MMBTU · CANCELLATION FEE $2M PER CARGO · JAN 2027 TO DEC 2029 · EUROPEAN POWER UTILITY PERSPECTIVE
02 · THE EXPERIMENT
Two identical books, one with the call option and one without, run over the same 1,000 Monte Carlo price paths per volatility regime and re-optimised on every path. The difference per path IS the option value. At the forward curve the option looks almost worthless, $0.04/MMBtu; across the simulations it averages $0.14 to $0.45, and it never goes negative.
03 · THE UPLIFT
The whole profit distribution shifts right with the option embedded: thinner left tail, longer right tail. Under high volatility the average uplift roughly doubles to about $49M, because stressed markets offer more profitable exercises at wider spreads.
04 · THE MECHANISM
The option is monetised mainly on the supply side: cancel a costly firm intake, lift a cheaper US spot cargo instead. The base book balances by selling to Asia; the flexible book re-anchors to Atlantic liquidity and uses India and China as selective outlets rather than routine balancing.
05 · THE PREMIA
Sweeping both premium levers at forward prices: each +$0.25/MMBtu of slot cost takes about $0.11/MMBtu of portfolio profit, while each +$1M of cancellation fee takes only about $0.04, tapering to $0.01 beyond $3M. In an auction, the slot tariff is the number to fight over.
06 · THE VERDICT
The cargo-level call pays in every regime:
$0.14, $0.20 and $0.45 per MMBtu as volatility rises.
Forwards price the option at four cents. Path-by-path valuation shows five to ten times that, doubling under stress: exactly when the right to walk away matters most.
07 · TAKEAWAYS
The call pays in every regime, and grows with volatility
$0.14/MMBtu at low, $0.20 at base, $0.45 at high volatility; the high-vol uplift is about $49M absolute, roughly double the base case. Forwards see almost none of it: just $0.04.
The option is monetised on the supply side
The flexible book lifts US spot in 46 to 49% of cargo decisions against 32 to 33% without the option, and uses India and China LESS. The extra value comes from larger spreads when exercised, not from more exercises: secure US spot access and freight, keep Asia selective.
Slot costs dominate cancellation fees
Each +$0.25/MMBtu of regas slot cost takes about $0.11/MMBtu of profit; each +$1M of cancellation fee only about $0.04, tapering to $0.01 beyond $3M. Negotiate the slot tariff first. Fees here are deliberately small and illustrative.
08 · THE TOOL
Your world goes in
Contracts, vessels, charter rates, prices, spot assumptions and constraints. The full book, not a slice.
One optimal plan comes out
Feasible, P&L-maximising and constraint-compliant, re-solved for every scenario in minutes.
Every number checks out
Each result can be recalculated by hand. Transparency your risk committee can audit.
CLOUD-BASED, ANY PORTFOLIO SIZE · BUILT AND ADVANCED DAILY BY ~25 MATHEMATICIANS, PHYSICISTS AND COMPUTER SCIENTISTS