Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Mosaic Co (Symbol: MOS), where a total of 17,376 contracts have traded so far, representing approximately 1.7 million underlying shares. That amounts to about 41.7% of MOS's average daily trading volume over the past month of 4.2 million shares. Especially high volume was seen for the $35.50 strike call option expiring September 19, 2025 , with 8,006 contracts trading so far today, representing approximat ...