I've borrowed money using SPX box spreads. You can get data on the recent trades and build a box spread at https://www.boxtrades.com/ https://www.boxtrades.com/

I've borrowed money using SPX box spreads. You can get data on the recent trades and build a box spread at https://www.boxtrades.com/ https://www.boxtrades.com/ There's a long thread on the Bogleheads forums about Box Spreads here: https://www.bogleheads.org/forum/viewtopic.php?t=344667 https://www.bogleheads.org/forum/viewtopic.php?t=344667