Q: What’s in your personal investment portfolio? John Bogle: I’m 50% bonds — 50% Vanguard bond funds — and 50% stocks. Half the time I wonder why I have so muc

Q: What’s in your personal investment portfolio? John Bogle: I’m 50% bonds — 50% Vanguard bond funds — and 50% stocks. Half the time I wonder why I have so much in stocks; the other half, I wonder why I have so little.