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Data as of Oct 28, 2026.

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VO vs XLK: Differences, Returns & Fees

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Over the year to Oct 28, 2026, VO returned +12.8% to XLK's +27.1%; 7% of their weight is in the same names.

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Net assets: $103.4bn on Sep 30, 2026 for Vanguard Morningstar Mid-Cap ETF, and $125.0bn on Oct 27, 2026 for State Street Technology Select Sector SPDR ETF.

VO on its own →XLK on its own →
At a glance
+12.8%
VO total return, 1 year
+27.1%
XLK total return, 1 year
0.03%
VO expense ratio
0.08%
XLK expense ratio

Pair scorecard

VO costs 0.05 points a year less; their one-year returns differ by 14.3 points; XLK is 1.2 times larger.

VO vs XLK: Differences, Returns & Fees
MeasureVOXLK
Return
Total return, 1 year+12.8%+27.1%
Drawdown
Below its high3.1%, high on Aug 14, 20265.4%, high on Oct 6, 2026
Benchmark
What it tracksMorningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)Technology Select Sector Index
Cost and size
Expense ratio0.03%0.08%
Net assets, as of Sep 30, 2026$103.4bn$127.3bn
Holdings
Holdings in common7%
Top ten holdings, share of the fund9.7%64.6%

Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method

What they share

7%

By the books each fund has filed, VO and XLK hold 7% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.

0 half 100%

half

7% in common

Positions both hold · largest shared weight first VO XLK
Fortinet Inc 0.55% 0.67%
Datadog Inc 0.91% 0.55%
Hewlett Packard Enterprise Co 0.79% 0.47%
Motorola Solutions Inc 0.73% 0.47%
Lumentum Holdings Inc 0.86% 0.45%
TE Connectivity PLC 0.60% 0.38%
Monolithic Power Systems Inc 0.62% 0.35%
Keysight Technologies Inc 0.61% 0.34%
Autodesk Inc 0.44% 0.30%
Teradyne Inc 0.62% 0.30%
Ciena Corp 0.49% 0.29%
Coherent Corp 0.56% 0.27%
Only in one fund ↓
Only in VO
Cloudflare Inc 1.11%
Valero Energy Corp 1.10%
Marathon Petroleum Corp 1.10%
Phillips 66 1.01%
Quanta Services Inc 0.95%
Vertiv Holdings Co 0.92%
Howmet Aerospace Inc 0.89%
Robinhood Markets Inc 0.88%
Only in XLK
NVIDIA CORP 15.22%
APPLE INC 14.62%
MICROSOFT CORP 11.38%
ADVANCED MICRO DEVICES 4.78%
BROADCOM INC 4.70%
MICRON TECHNOLOGY INC 4.02%
INTEL CORP 2.72%
PALANTIR TECHNOLOGIES INC A 2.67%
Check overlap with more funds →

Side by side

VO Vanguard Morningstar Mid-Cap ETF XLK State Street Technology Select Sector SPDR ETF
Where it sits Stock ETF Stock ETF
Issuer Vanguard State Street
What it is Tracks an index of Mid-Cap Tracks an index of Technology
Total return, 1 year +12.8% +27.1%
Its benchmark over the same days not measured +13.6% (SPY)
Gap to its benchmark not measured +13.5 pts vs SPY
Expense ratio 0.03% 0.08%
Already in the S&P 500 91.1% 99.9%
Holdings 273 76
Net assets, VO as of Sep 30, 2026 and XLK as of Oct 27, 2026 $103.4bn $125.0bn

VO and XLK on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
VO

VO tracks an index of Mid-Cap. Over the year to Oct 28, 2026 it returned +12.8% with distributions reinvested. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 273 positions, with the top ten at 9.7%. It sat 3.1% below its high of Aug 14, 2026 on Oct 28, 2026.

XLK

XLK tracks an index of Technology. Over the year to Oct 28, 2026 it returned +27.1% with distributions reinvested, against +13.6% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.08% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 76 positions, with the top ten at 64.6%. It sat 5.4% below its high of Oct 6, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, VO or XLK?
In the year to Oct 28, 2026, with distributions reinvested, VO returned +12.8% and XLK +27.1%.
Which is cheaper, VO or XLK?
VO is cheaper, by 0.05 percentage points a year. That is about $5 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do VO and XLK overlap with the S&P 500?
By their latest filed holdings, 91% of VO and 100% of XLK by weight is stocks the S&P 500 already holds.
Other comparisons
VGT vs VOIGM vs VOIYW vs VOFTEC vs VOIJH vs XLKMDY vs XLKMOAT vs XLKVXF vs XLK
Where to next
VO on its own →XLK on its own →Hold both: look the portfolio through →Rankings →VO dividend history →VO holdings →XLK dividend history →XLK holdings →Standards and sources →
Sources and dates
VO filings on SEC EDGAR ↗
VO prospectus with the expense ratio (SEC) ↗
Vanguard page for VO ↗
XLK filings on SEC EDGAR ↗
XLK prospectus with the expense ratio (SEC) ↗
State Street website ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

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ETFIQ, VO against XLK, data as of Oct 28, 2026. https://etfiq.com/compare/any/vo-vs-xlk

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