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2015issue C0650

Near-expiry options on new-crop grain futures

Before shorter new-crop option listings existed, a grain trader who wanted option exposure to the next harvest had to use options that expired far in the future, so a short-horizon hedge or speculation absorbed a large time premium. Short-dated new-crop options expire during the growing season while remaining written on the first futures month of the next harvest, mark to that month, and exercise into a futures position there.

  • Remaining option life and the chosen harvest futures month are separate choices: one sets how much unused time sits in the premium, the other sets which crop cycle the price view tracks.
  • Short-dated new-crop options expire each month from January through September while remaining written against the coming December futures, unlike standard options that attach to the next expiring futures month.
  • These options mark to the new-crop futures, and exercise assigns a position in that later harvest month rather than in the nearby old-crop contract.
  • Pairing a nearer expiration with a later harvest month was meant to give shorter-horizon access to that harvest's price, though not every new listing attracts activity.
Entries in this reading3 entries
Current trackOptions calendar spread30 readingsOption expiration analysis38 readingsFutures contract selection91 readings

The unused-time problem

Before shorter new-crop option listings existed, a grain trader who wanted option exposure to the next harvest had to use options that expired far in the future. A short-horizon hedge or speculation therefore absorbed a large time premium.

What a short-dated new-crop option attaches to

A short-dated new-crop option expires during the growing season but is written on the first futures month of the next harvest cycle rather than on the nearest futures month. In the grain listings described here, those options expire in each month from January through September while remaining written against the coming December futures. Standard options attach instead to the next expiring futures month.

New crop versus old crop

New crop is the first listed futures month that represents supply from the next harvest rather than from inventory already in the current crop year. Old crop months settle before the next harvest and therefore represent the current growing cycle's supply.

For corn, December is the first futures month of the next harvest cycle, while March, May, July, and September belong to the current cycle. Soybean new crop is November. Wheat new crop is July.

The 2015 attachment map

Under the standard 2015 mapping, January, February, and March options attach to March futures. Short-dated new-crop options with those same expirations attach to December 2015 futures.

Futures contract selection is the act of choosing which listed month is the true underlying so that a hedge or speculation tracks the intended harvest cycle instead of the nearby old-crop contract.

How much time remains versus how far the futures sit

An April-expiring option written on December futures leaves less time to expiration than a conventional long-dated new-crop option. The premium is therefore lower for a shorter-horizon stance on new-crop prices around a scheduled crop report.

Option expiration analysis compares how much calendar time remains until the option dies versus how far away the referenced futures month is, because that gap sets premium and when the view must be right.

Marks and exercise

These options mark to the new-crop futures. Exercise assigns a futures position in that new-crop month. An April corn short-dated new-crop call struck at 4.20 becomes a long December futures at 4.20 if December is at 4.25 at that April expiration.

Why the pairing exists

Pairing a nearer option expiration with a later harvest futures month is a contract-design choice meant to give hedgers and speculators more efficient access to that harvest's price. Not every new listing attracts activity.

Educational research material, not investment advice. Historical source context does not establish present-day performance.
16 of 21 in the Options calendar spread track
201846-47 pp.Next on Options calendar spreadCalendar spreads as range and volatility regime tradesA standard calendar buys a farther-dated call or put and sells the same strike in a nearer expiration, relying on a time-decay differential if price remains usable around that strike.
All readings on this track · 21 readings
  1. 1994Competing-bid calendar spreads and implied volatility
  2. 2001Calendar spreads as range overlays with wing repairs
  3. 2002Covered-call premium budgets and calendar-style rolls
  4. 2002Calendar-spread construction from time decay and implied volatility
  5. 2003Calendar ratio backspread construction for range and breakout regimes
  6. 2005Read the implied-volatility regime before calendar-spread assignment
  7. 2005Constructing calendars and straddles around implied volatility
  8. 2005Short option coverage through calendars, rolls, and expiration
  9. 2006Calendar spread expiration, assignment and time skew
  10. 2008The two clocks that close a calendar or a stock-plus-put
  11. 2010Cheap back-month implied volatility is a regime question, not a shopping rule
  12. 2010Calendar-spread assignment as a volatility regime shift
  13. 2010Uncapped collar overlays and earnings-week short calendars
  14. 2011Sequencing verticals, straddles, and calendars as construction tests
  15. 2012Executing conversion and ratio calendar option packages
  16. 2015Near-expiry options on new-crop grain futures
  17. 2018Calendar spreads as range and volatility regime trades
  18. 2019A directional put calendar after a failed resistance breakout
  19. 2019Sizing short-option risk with calendar puts
  20. 2019Limited-risk reversal construction
  21. 2020Covered-call writing versus a calendar call diagonal
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