Compare CSSPX vs. VOO ETF performance

›Compare ETFs›CSSPX vs. VOO ETF comparison

Comparing 2 ETFs	Performance (July 28, 2026 - August 28, 2026)
CSSPX +3.89% VOO +3.91%

Comparison analysis

iShares Core S&P 500 UCITS ETF (CSSPX) provides exposure to the US Large & Mid Cap segment. Vanguard S&P 500 ETF (VOO) belongs to the US Large Cap segment. Both funds use a Direct (Physical) replication method to follow their index and a replication model of Full replication. Technology, Finance and Healthcare are CSSPX’s top sector exposures, while VOO invests in Technology, Finance and Consumer Non-Cyclicals as its top 3. CSSPX’s top underlying securities are Apple, Inc. (7.65%), NVIDIA Corp. (7.38%) and Microsoft Corp. (5.23%). VOO’s top underlying securities are NVIDIA Corp. (7.55%), Apple, Inc. (7.04%) and Microsoft Corp. (5.36%). With a Total Expense Ratio (TER) of 0.07%, CSSPX is more expensive than VOO, with 0.03%. CSSPX has a 3M average daily volume (ADV) of +$136M vs. +$3.49B for VOO. The recorded 1Y bid-ask spread is +2.50bps (CSSPX) and +0.59bps (VOO). The table below shows the full side-by-side ETF comparison of CSSPX and VOO, with detailed data on performance, flows, liquidity, exposure to individual stocks, segments, sectors, and geographies, helping you select the best ETFs.

	CSSPX iShares Core S&P 500 UCITS ETF - USDThis ETF provides exposure to Large Cap US Equities Share class Acc USD ISIN IE00B5BMR087	VOO Vanguard S&P 500 ETF - USDThis ETF provides exposure to Large Cap US Equities ISIN US9229083632


Product Type	Passive ETF	Passive ETF
Strategy	Long only	Long only
NAV	$831.12	$704.92
AuM	-	-
Total AuM of fund	€157.08B
Base currency	USD	USD
TER	0.07%	0.03%
Rating

Provider	iShares	Vanguard
Investment strategy	The Fund seeks to track the performance of an index composed of 500 large cap U.S. companies.	The Vanguard S&P 500 ETF employs an indexing investment approach designed to track the performance of the Standard & Poor‘s 500 Index, a widely recognized benchmark of U.S. stock market performance that is dominated by the stocks of large U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.
Dividend policy	Capitalization	Distribution


Tax optimisation
PEA
UK Reporting

Performance and flows	Perf. Flows	Perf. Flows
1 month	+3.89% To view, create a free account	+3.91% To view, create a free account
3 months	+2.18%	+2.23%
1 year	+19.73%	+19.98%
3 years	+77.02%	+80.82%
5 years	+80.68%	+82.58%
Month to date	+3.04%	+3.06%
Quarter to date	+2.96%	+2.99%
Year to date	+13.34%	+13.48%

Volatility and risk	1 year 3 years 5 years	1 year 3 years 5 years
Volatility	To view, create a free account	To view, create a free account
Perf./Volatility
Max drawdown
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Exposure
Countries
Sectors or issuer types
Number of holdings	503	503
Weight of top 15 holdings
Top 15 holdings	Apple, Inc. NVIDIA Corp. Microsoft Corp. Amazon.com, Inc. Alphabet, Inc. Broadcom Inc. Alphabet, Inc. Meta Platforms, Inc. Micron Technology, Inc. JPMorgan Chase & Co. Berkshire Hathaway, Inc. Eli Lilly & Co. Tesla, Inc. Advanced Micro Devices, Inc. US30233Q1085 To view, create a free account	NVIDIA Corp. Apple, Inc. Microsoft Corp. Amazon.com, Inc. Alphabet, Inc. Broadcom Inc. Alphabet, Inc. Meta Platforms, Inc. JPMorgan Chase & Co. Berkshire Hathaway, Inc. Micron Technology, Inc. Eli Lilly & Co. Tesla, Inc. Advanced Micro Devices, Inc. US30233Q1085 To view, create a free account

Replication
Benchmark	S&P 500 Index	S&P 500 Index
Replication method
Replication model
Trackinsight replication rating
Tracking error (1Y)
Tracking difference (1Y)
1Y cumulative return difference	Best +16.55bps Worst +13.88bps	Best -3.65bps Worst -4.32bps
Daily return difference	Avg +0.05bps Worst -0.07bps	Avg -0.01bps Worst -0.18bps

Sustainability
SDG

Frequently asked questions about CSSPX and VOO

How did CSSPX and VOO perform in 2026?

As of 8/28/2026, CSSPX has delivered a year-to-date performance of 13.34%, while VOO has returned 13.48%.

Which ETF is seeing higher flows: CSSPX or VOO?

As of 8/28/2026, CSSPX has recorded +€4.08B in net flows YTD, compared to +€90.61B for VOO since the beginning of the year.

Which ETF shows higher volatility: CSSPX or VOO?

As of 8/28/2026, CSSPX reported a 1-year volatility of 12.71%, whereas VOO registered volatility 12.81% over the same period.

How do CSSPX and VOO differ in sector exposure?

As of 8/28/2026, CSSPX is primarily exposed to sectors such as Technology, weight 44.76%, Finance, weight 14.01% and Healthcare, weight 8.99%. The top sectors in VOO feature Technology, weight 44.70%, Finance, weight 13.84% and Consumer Non-Cyclicals, weight 9.41%.

How do CSSPX and VOO differ in geographic exposure?

As of 8/28/2026, CSSPX has its largest country exposures in USA, weight 96.34% and Ireland, weight 1.16%. The top countries in VOO feature USA, weight 96.39% and Ireland, weight 1.18%.

How do CSSPX and VOO differ in terms of holdings?

As of 8/28/2026, CSSPX include Apple, Inc., weight 7.65%, NVIDIA Corp., weight 7.38% and Microsoft Corp., weight 5.23%. The top positions in VOO feature NVIDIA Corp., weight 7.55%, Apple, Inc., weight 7.04% and Microsoft Corp., weight 5.36%.

Is CSSPX or VOO more diversified?

As of 8/28/2026, CSSPX holds 503 securities, with 43.59% of its assets allocated to its top 15 positions. VOO, by comparison, includes 503 holdings and has 44.02% concentrated in its top 15.

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