S&P 500 Index (SPX)
about 1 month20 Feb 26 2 months20 Mar 26 3 months17 Apr 26 4 months15 May 26 5 months18 Jun 26 6 months17 Jul 26 7 months21 Aug 26 8 months18 Sep 26 9 months16 Oct 26 10 months20 Nov 26 11 months18 Dec 26 12 months15 Jan 27 about 1 year19 Feb 27 19 Mar 27 over 1 year17 Jun 27 almost 2 years17 Dec 27 almost 3 years15 Dec 28 almost 4 years21 Dec 29 almost 5 years20 Dec 30 almost 6 years19 Dec 31
E-mini S&P 500 Futures (ES)
almost 2 years17 Dec 27 17 Dec 27

Feb '27 SPX Box Spreads

S&P 500 Index (SPX)
updated daily, quoted in USD