Coffee is an example of a product that has been susceptible to significant commodity futures price variations.
en.wikipedia.org Some of the more commonly day-traded financial instruments are stocks, options, currencies, and a host of futures contracts such as equity index futures, interest rate futures, and commodity futures.
en.wikipedia.org For instance, options on commodity futures typically show increased implied volatility just prior to the announcement of harvest forecasts.
en.wikipedia.org The index tracks 38 commodity futures contracts from 13 international exchanges.
en.wikipedia.org Speculators are particularly common in the markets for stocks, bonds, commodity futures, currencies, fine art, collectibles, real estate, and derivatives.
en.wikipedia.org