VOO and VTI Overlap

Have a question about your personal investments? No matter how simple or complex, you can ask it here.
Post Reply
Foreverhopeful
Posts: 13
Joined: Thu Jan 25, 2024 6:14 am

VOO and VTI Overlap

Post by Foreverhopeful »

I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
Tamalak
Posts: 2157
Joined: Fri May 06, 2016 2:29 pm

Re: VOO and VTI Overlap

Post by Tamalak »

I definitely wouldn't hold both VOO and VTI. Their performance is almost identical. I also think VTI is just better - more diversified.

Think about what, if any, taxable events would happen before you sell anything, though.
BorqaZ
Posts: 76
Joined: Sat Mar 16, 2024 7:01 pm

Re: VOO and VTI Overlap

Post by BorqaZ »

Tamalak wrote: Mon Sep 30, 2024 8:12 am Their performance is almost identical. I also think VTI is just better - more diversified.
These two statements cannot be true at the same time.

My recollection is that they are highly correlated assets with rho=0.98 or 0.99. They have a huge overlap in their holdings. So OP choose one. Almost randomly.
terran
Posts: 3317
Joined: Sat Jan 10, 2015 9:50 pm

Re: VOO and VTI Overlap

Post by terran »

About 80% of VTI is exactly the same companies as VOO. Do with that what you will.
catlady
Posts: 260
Joined: Sat Mar 26, 2016 8:31 pm

Re: VOO and VTI Overlap

Post by catlady »

Use them for TLH partners.
User avatar
retired@50
Posts: 14699
Joined: Tue Oct 01, 2019 2:36 pm
Location: Living in the U.S.A.

Re: VOO and VTI Overlap

Post by retired@50 »

Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
"All of us would be better investors if we just made fewer decisions." - Daniel Kahneman
User avatar
nisiprius
Advisory Board
Posts: 53899
Joined: Thu Jul 26, 2007 9:33 am
Location: The terrestrial, globular, planetary hunk of matter, flattened at the poles, is my abode.--O. Henry

Re: VOO and VTI Overlap

Post by nisiprius »

BorqaZ wrote: Mon Sep 30, 2024 8:18 am ...My recollection is that they are highly correlated assets with rho=0.98 or 0.99.
Using mutual fund share classes to get the longest possible history, 0.987 for 1992-04-28 - 2024-09-27 (source)
They have a huge overlap in their holdings.
87% by weight. Source
So OP choose one. Almost randomly.
I wouldn't quite go along with that. If all other things are truly equal, I would prefer VTI or other total stock market fund. But if there's even the slightest reason to prefer VOO or other S&P 500 fund, I wouldn't hesitate to use it.

There's no reason I can think of to deliberately mix them.

But "overlap" isn't a problem, I wouldn't spend any effort avoiding mixing them.

I originally invested in the Vanguard 500 Index fund, because my goal was not own the whole market and not pick stocks at all. At the time, the S&P 500 was customarily thought of as "the market," which is what it was intended to represent when created in 1957. It still is a very good, workmanlike approximation to the total market.

I was vaguely aware of the Wilshire 5000 index, and Vanguard sent me some literature about it when they launched the Vanguard Total Stock Market Index Fund, but it had a higher expense ratio than 500 Index and I hadn't been propagandized by the cult of small-caps, so I shrugged. Eventually, I switched to Total Stock, not because I was convinced it would make more money, but simply because it had higher fidelity to my goal of owning the whole market.

"Overlap" is something of a shibboleth. It is mostly an issue for investors who are investing in actively managed mutual funds, and who are simultaneously trying to keep their whole portfolio somewhat diversified, yet are willing to pay money for funds that are concentrated in some star manager's stock picks. The issue is that if you buy three "different" funds with high overlap, you may think you are more diversified than you are. Another issue is that if fund X has a 1.4% expense ratio and fund Y has 0.8% expense ratio and they have a lot of overlap, you are wasting money buying fund X. Of course if you buy twelve different high-expense active funds that do not overlap much, you've just built yourself a sloppy index fund, and paying active management prices to get index fund results.

But in the case of VTI and VOO, you are not kidding yourself, because both are almost perfectly diversified--VTI by itself, VOO by itself, or any mixture of the two.
Annual income twenty pounds, annual expenditure nineteen nineteen and six, result happiness; Annual income twenty pounds, annual expenditure twenty pounds ought and six, result misery.
User avatar
ApeAttack
Posts: 1021
Joined: Wed Dec 23, 2020 7:28 pm
Location: Gorillatown, USA

Re: VOO and VTI Overlap

Post by ApeAttack »

Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
VTI and VXUS are a fine pairing with no overlap. VOO and VXUS also are a fine pairing with no overlap.

There's no point in mixing VTI and VOO due to their enormous overlap and resulting similar behavior over time.
May all your index funds gain +0.5% today.
chrisdds98
Posts: 555
Joined: Tue May 19, 2015 9:55 pm
Location: Austin, TX

Re: VOO and VTI Overlap

Post by chrisdds98 »

retired@50 wrote: Mon Sep 30, 2024 8:42 am
Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
is the purpose of adding international to increase your volatility or reduce your returns? either way, i'm not a fan ;)
Xrayman69
Posts: 1136
Joined: Fri Jun 01, 2018 8:52 pm

Re: VOO and VTI Overlap

Post by Xrayman69 »

catlady wrote: Mon Sep 30, 2024 8:35 am Use them for TLH partners.
+1. I have both and occasionally have used for TLH.
muffins14
Posts: 6759
Joined: Wed Oct 26, 2016 4:14 am
Location: New York

Re: VOO and VTI Overlap

Post by muffins14 »

chrisdds98 wrote: Mon Sep 30, 2024 9:40 am
retired@50 wrote: Mon Sep 30, 2024 8:42 am
Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
is the purpose of adding international to increase your volatility or reduce your returns? either way, i'm not a fan ;)
There is no theoretical reason for why international would be expected to increase volatility and reduce returns going forward
Crom laughs at your Four Winds
User avatar
nisiprius
Advisory Board
Posts: 53899
Joined: Thu Jul 26, 2007 9:33 am
Location: The terrestrial, globular, planetary hunk of matter, flattened at the poles, is my abode.--O. Henry

Re: VOO and VTI Overlap

Post by nisiprius »

muffins14 wrote: Mon Sep 30, 2024 10:06 am
chrisdds98 wrote: Mon Sep 30, 2024 9:40 am
retired@50 wrote: Mon Sep 30, 2024 8:42 am
Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
is the purpose of adding international to increase your volatility or reduce your returns? either way, i'm not a fan ;)
There is no theoretical reason for why international would be expected to increase volatility and reduce returns going forward
Actually, there is a theoretical reason for why it would be expected to increase volatility: the effect of currency exchange fluctuation. That adds some volatility to any purchase made in a foreign currency, without adding any expected return. So there should always be a rational preference for investments denominated in your home currency. The debate, of course, is whether the size of that effect is big enough to take into account in setting asset allocation.
Annual income twenty pounds, annual expenditure nineteen nineteen and six, result happiness; Annual income twenty pounds, annual expenditure twenty pounds ought and six, result misery.
Alex GR
Posts: 272
Joined: Mon Jul 31, 2017 9:17 am

Re: VOO and VTI Overlap

Post by Alex GR »

I would go with VOO + VXUS + VBR. For example, for a 70/30 portfolio, I'd make it 45% VOO 10% VBR and 15% VXUS, with the remaining 30% in fixed income.
But I am guilty of overcooking things :happy Helps me tremendously to stay the course.
User avatar
retired@50
Posts: 14699
Joined: Tue Oct 01, 2019 2:36 pm
Location: Living in the U.S.A.

Re: VOO and VTI Overlap

Post by retired@50 »

nisiprius wrote: Mon Sep 30, 2024 10:28 am
muffins14 wrote: Mon Sep 30, 2024 10:06 am
chrisdds98 wrote: Mon Sep 30, 2024 9:40 am
retired@50 wrote: Mon Sep 30, 2024 8:42 am
Foreverhopeful wrote: Mon Sep 30, 2024 8:09 am I have investments in VOO (S&P 500) and VTI ( Total stock market). Because they overlap, should I chose one, and maybe do VXUS (International Stock) in one.
If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
is the purpose of adding international to increase your volatility or reduce your returns? either way, i'm not a fan ;)
There is no theoretical reason for why international would be expected to increase volatility and reduce returns going forward
Actually, there is a theoretical reason for why it would be expected to increase volatility: the effect of currency exchange fluctuation. That adds some volatility to any purchase made in a foreign currency, without adding any expected return. So there should always be a rational preference for investments denominated in your home currency. The debate, of course, is whether the size of that effect is big enough to take into account in setting asset allocation.
I wonder if holding a 70% US 30% International stock actually has increased volatility historically, as compared to a 100% US allocation.

Nisi, you like charts, care to indulge us?

Regards,
"All of us would be better investors if we just made fewer decisions." - Daniel Kahneman
chrisdds98
Posts: 555
Joined: Tue May 19, 2015 9:55 pm
Location: Austin, TX

Re: VOO and VTI Overlap

Post by chrisdds98 »

retired@50 wrote: Mon Sep 30, 2024 12:30 pm
nisiprius wrote: Mon Sep 30, 2024 10:28 am
muffins14 wrote: Mon Sep 30, 2024 10:06 am
chrisdds98 wrote: Mon Sep 30, 2024 9:40 am
retired@50 wrote: Mon Sep 30, 2024 8:42 am

If you're seeking additional diversification, then VXUS is where new money should go.

Regards,
is the purpose of adding international to increase your volatility or reduce your returns? either way, i'm not a fan ;)
There is no theoretical reason for why international would be expected to increase volatility and reduce returns going forward
Actually, there is a theoretical reason for why it would be expected to increase volatility: the effect of currency exchange fluctuation. That adds some volatility to any purchase made in a foreign currency, without adding any expected return. So there should always be a rational preference for investments denominated in your home currency. The debate, of course, is whether the size of that effect is big enough to take into account in setting asset allocation.
I wonder if holding a 70% US 30% International stock actually has increased volatility historically, as compared to a 100% US allocation.

Nisi, you like charts, care to indulge us?

Regards,
historically it does indeed lead to higher volatility. and as a side benefit of that extra vol it also comes with lower returns. granted this is based on a small sample size of only four DECADES
User avatar
arcticpineapplecorp.
Posts: 16218
Joined: Tue Mar 06, 2012 8:22 pm

Re: VOO and VTI Overlap

Post by arcticpineapplecorp. »

retired@50 wrote: Mon Sep 30, 2024 12:30 pm I wonder if holding a 70% US 30% International stock actually has increased volatility historically, as compared to a 100% US allocation.

Nisi, you like charts, care to indulge us?

Regards,
not nisi here but here are some that showed in the past there was a reduction in volatility (the amount, i.e., was it significant or not really? is debatable):

Image

sorry, can't find the original article (was called something like the case for globalization or something, whitepaper at vanguard).

over these time periods below, 70/30 US/International did reduce volatility as measured by standard deviation:

Image

source: https://www.bogleheads.org/wiki/Domestic/international
It's hard to accept the truth when the lies were exactly what you wanted to hear. Investing is simple, but not easy. Buy, hold & rebalance low cost index funds & manage taxable events. Asking Portfolio Questions | Wiki
nitwitter
Posts: 5
Joined: Mon Sep 16, 2024 2:07 pm

Re: VOO and VTI Overlap

Post by nitwitter »

I’m currently at 70% VTI, 15% IVV and 15% VXUS. I guess I was trying to go overweight in large cap than what VTI alone has, and the 15% International has almost become a “why bother.”
investor4life
Posts: 554
Joined: Fri Oct 08, 2010 9:45 am

Re: VOO and VTI Overlap

Post by investor4life »

Tamalak wrote: Mon Sep 30, 2024 8:12 am I definitely wouldn't hold both VOO and VTI. Their performance is almost identical. I also think VTI is just better - more diversified.

Think about what, if any, taxable events would happen before you sell anything, though.
Not so sure about the statement above about nearly identical performance. According to Portfolio Visualizer, VOO has outperformed VTI by a not so insignificant margin between Jan 2015 and Aug 2024 (the period for which data on both is available).

Annualized return for VTI over the past 3, 5, and ~10 years is 7.70%, 15.10%, 12.41%.

For VOO they are 9.33%, 15.87%, 13.02%
User avatar
retired@50
Posts: 14699
Joined: Tue Oct 01, 2019 2:36 pm
Location: Living in the U.S.A.

Re: VOO and VTI Overlap

Post by retired@50 »

arcticpineapplecorp. wrote: Mon Sep 30, 2024 8:21 pm
retired@50 wrote: Mon Sep 30, 2024 12:30 pm I wonder if holding a 70% US 30% International stock actually has increased volatility historically, as compared to a 100% US allocation.

Nisi, you like charts, care to indulge us?

Regards,
not nisi here but here are some that showed in the past there was a reduction in volatility (the amount, i.e., was it significant or not really? is debatable):
Thanks for digging into this. I appreciate the effort.

Regards,
"All of us would be better investors if we just made fewer decisions." - Daniel Kahneman
Post Reply