Calendar Spread Options
Calendar Spread Options — Same strike across expiries expressing term-structure views.
Definition
Calendar Spread Options refers to same strike across expiries expressing term-structure views. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
Options and futures embed views on vol, skew, and path that cash markets only hint at. When same strike across expiries expressing term-structure views shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what calendar spread options is saying. If same strike across expiries expressing term-structure views moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
State the expiry and Greek exposure; unmarked vol or pinning effects rewrite the thesis. Prefer a short written null hypothesis for Calendar Spread Options: what would falsify the current reading in the next window?