I was thinking about the Gundlach theory that stocks will fall as bond yields rise
https://www.elitetrader.com/et/thre...10y-ust-yield-should-send-stocks-down.306056/
I got to do some more investigation about this but its possible that Gundlach will be right (for the short-term) but only because investors would be acting stupidly
In the Asness paper I linked in that thread, he talks about how low PEs with high interest rates and high PEs with low interest rates make no sense because stocks are real assets and they resemble more a floating rate bond rather than a fixed rate bond. Floating rate bonds correlate more with credit risk than with interest rate risk
But the issue is that since the 60's people have been acting irrationally. Especially when there is a perception that stocks are very risky relative to bonds (Asness quantifies that by looking at the previous 20 year standard deviation of stocks vs bonds)
Bonds have been a on tear for years, stocks had two 50% declines in the last 20 years. So its possible that as bond yields rise, people will favor them over stocks and PEs will fall.
But it isn't that simple, because if growth (or expected growth) shows up, the perceived risk of the stock market will fall. People will feel more comfortable with being in the stock market during a pro-growth administration. So that could negate that irrational tendency (and indeed, pre-60s that irrationality did not happen as much. That tendency is not set in stone)
So its complicated. Its not as simple as saying 3% yields and stocks will fall. That effect has to be counter balanced by the higher growth expectations (and the 20-40% upside that equities would have in that instance)
Also, a market that is irrationally falling would present an opportunity to a long-term investor (its a benign risk). Whereas, being out of a market that is soaring will really hurt that investor long-term due compounding