BLV
Vanguard Long-Term Bond ETF
stock NYSE ETF

Others have said similar things. What keeps you invested is the biggest factor.
And if a 60/40 split keeps you invested, but you would freak out about a 40% drop in a 100% stock portfolio, then it is more optimal for you to be in a 60/40 split.
It’s really hard to stay 100% invested in equities when you see (like in early 2020) multiple days where you are “losing” 7% or more. If you have near $1M when that happens, it’s $70k loss in a single day. And then again the next day and a few days later.
And the bear market of 2022 was pretty rough also, but it was a different kind of pain. That one you couldn’t even bail out to bonds because bond yields were about 0%. Great if you had bonds in your portfolio already, but the best move was to just sit tight.
But, even with both of those periods included, my 10 year return is 12.9%. And I’m not even 100% invested in equities. I have about 15% of my portfolio in BLV.

Others have said similar things. What keeps you invested is the biggest factor.
And if a 60/40 split keeps you invested, but you would freak out about a 40% drop in a 100% stock portfolio, then it is more optimal for you to be in a 60/40 split.
It’s really hard to stay 100% invested in equities when you see (like in early 2020) multiple days where you are “losing” 7% or more. If you have near $1M when that happens, it’s $70k loss in a single day. And then again the next day and a few days later.
And the bear market of 2022 was pretty rough also, but it was a different kind of pain. That one you couldn’t even bail out to bonds because bond yields were about 0%. Great if you had bonds in your portfolio already, but the best move was to just sit tight.
But, even with both of those periods included, my 10 year return is 12.9%. And I’m not even 100% invested in equities. I have about 15% of my portfolio in BLV.