Louis found dealer inventory is not remotely enough to accommodate the selling he expects as higher rates bite more.
We now have a corporate bond market that has roughly doubled in size while the willingness and ability of bond dealers to provide liquidity into a stressed market has fallen by more than -80%. At the same time, this market has a brand-new class of investors, who are likely to expect daily liquidity if and when market behavior turns sour. At the very least, it is clear that this is a very different corporate bond market and history-based financial models will most likely be found wanting.
https://www.theburningplatform.com/2018/05/17/a-liquidity-crisis-of-biblical-proportions-is-upon-us/