You don't have to believe. If you have a 401k you will be an investor 15 days after launch. The IPO will go great, because the company will float a fairly small issuance. The big shareholders will not immediately sell. They will hold on and maybe even buy to support the price. Then, after 15 days, it will enter the indexes and everyone's 401k will start auto-buying this stock. You might say this is an obvious flaw in…
Do the ETF managers have no discretion in determining when to buy? I was under the impression that they usually handle these changes to indices gradually even under normal circumstances.
blind purchases are not going to happen. people assume passive indexing is brainless, but it isnt.