Posts  / #POST-232196
REDDIT

SPY outperforming SPX by 40%

C
Jun 29, 2026 · 19:47

SPY seems to be outperforming the SPX index. At the time of writing, SPY is up 1.6% while SPX is only up 1.1%

Anyone know why?

If they are supposed to have a near 1:1 correlation, can you buy SPX futures while writing SPY calls?