The phrase sounds almost impossible: a short squeeze involving index funds. After all, index funds are designed to be passive, rules-based buyers, not active traders caught on the wrong side of a position. Yet that is exactly the scenario Animal Spirits hosts Michael Batnick and Ben Carlson laid out on Episode 467, “The Biggest Short ... SpaceX IPO Could Create ‘The Biggest Short Squeeze’ of All Time on Index Funds. Here’s How That Happens.