Strong growth focused mix with heavy semiconductor tilt and concentrated exposure to US mega caps
Report created on Jun 8, 2026Risk profile
5/7
Diversification profile
2/5
Positions
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SM VanEck Semiconductor UCITS ETF
SMGB - IE00BMC38736 50.00% -
VU Vanguard S&P 500 UCITS ETF USD Accumulation
VUAA - IE00BFMXXD54 50.00%
This portfolio is very simple: two equity ETFs at 50% each. One tracks a broad US large‑cap index, the other targets the global semiconductor industry. That creates a barbell between broad market exposure and a highly focused growth theme. Simplicity like this makes it easier to understand what drives returns, because there are only two moving parts. The flip side is that every decision matters more: any big swing in semiconductor stocks or the US market will strongly affect the total value. Overall, this is a straightforward growth‑oriented structure with deliberate concentration rather than a wide blend of different asset types.
Growth
From late 2020 to mid‑2026, £1,000 grew to about £3,885, a compound annual growth rate (CAGR) of 27.94%. CAGR is like average speed on a long road trip, smoothing out bumps along the way. This return comfortably beat both the US market and global market benchmarks over the same period. The trade‑off was a larger maximum drawdown of roughly -29%, compared with about -21% and -18% for the benchmarks. That shows how focusing on fast‑growing areas can boost gains in good times but deepen temporary losses when conditions turn, even when long‑term results are strong.
Projection
The Monte Carlo projection uses thousands of simulated paths based on historical behaviour to estimate a range of future outcomes. Here, £1,000 invested for 15 years has a median outcome of about £2,836, with a wide “middle band” from roughly £1,834 to £4,315. Monte Carlo is like running the same season of a sports league 1,000 times to see how often different results occur. It highlights that while positive outcomes are more likely than negative ones, there is still a meaningful chance of flat or weak results. As always, these simulations rely on past data and assumptions, so they are illustrative rather than predictive.
Asset classes
- Stocks 100%
All of this portfolio sits in stocks, with no allocation to bonds, cash equivalents, or alternative assets. From a diversification angle, that means returns are fully tied to equity markets rising and falling. Equities historically offer higher potential returns than lower‑risk assets, but they also tend to swing more in the short term. Many broad benchmarks mix in other asset classes to dampen volatility. Here, the 100% equity exposure aligns with a growth‑seeking profile and keeps the structure simple, but it also means portfolio stability relies entirely on how these stock markets behave over time.
Sectors
- Technology 68%
- Financials 6%
- Telecommunications 6%
- Consumer Discretionary 5%
- Health Care 4%
- Industrials 4%
- Consumer Staples 2%
- Energy 2%
- Utilities 1%
- Real Estate 1%
- Basic Materials 1%
Sector exposure is dominated by technology at 68%, largely driven by the semiconductor ETF. Other sectors like financials, telecoms, consumer, healthcare, and industrials have relatively small weights by comparison. This is very different from many broad equity benchmarks, where technology is important but not this overwhelming. Sector concentration can be powerful when the favoured area is in a strong cycle, as seen recently in parts of tech, but it also links the portfolio to that sector’s ups and downs. For example, changes in interest rates or chip demand could have an outsized impact on total returns here.
Regions
- North America 92%
- Asia Developed 4%
- Europe Developed 4%
Geographically, around 92% of the portfolio is in North America, with only small slices in developed Asia and Europe. Global equity indices usually allocate a lower share to North America, so this is a clear home‑country tilt toward the US market and its large companies. A strong US tilt has been rewarded over the past decade, which this portfolio has benefited from in performance terms. The trade‑off is that economic, policy, or currency shocks specific to the US will heavily influence outcomes. Exposure to other regions is present but limited, so global diversification is relatively modest.
Market capitalization
- Mega-cap 52%
- Large-cap 37%
- Mid-cap 11%
- Small-cap 1%
By market capitalization, the portfolio is anchored in mega‑caps and large‑caps, together making up nearly 90%, with only small exposure to mid‑ and small‑caps. Market cap describes company size; mega‑caps are the very largest firms. This structure tends to lean into more established businesses that often dominate major indices and can sometimes be more resilient than smaller peers during stress. On the other hand, it means less participation in the potential higher growth (and higher risk) that mid‑ and small‑cap companies can offer. Overall, the size profile looks similar to many mainstream US equity funds, just with a tech‑heavy twist.
True holdings
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NV NVIDIA Corporation 7.53%
Part of fund(s):- VanEck Semiconductor UCITS ETF
- Vanguard S&P 500 UCITS ETF USD Accumulation
-
MU Micron Technology Inc 7.06%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
AM Advanced Micro Devices Inc 5.95%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
AV Broadcom Inc 5.35%
Part of fund(s):- VanEck Semiconductor UCITS ETF
- Vanguard S&P 500 UCITS ETF USD Accumulation
-
AS ASML Holding NV ADR 3.87%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
TS Taiwan Semiconductor Manufacturing 3.83%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
IN Intel Corporation 3.75%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
AA Apple Inc 3.23%
Part of fund(s):- Vanguard S&P 500 UCITS ETF USD Accumulation
-
LR Lam Research Corp 2.86%
Part of fund(s):- VanEck Semiconductor UCITS ETF
-
AM Applied Materials Inc 2.74%
Part of fund(s):- VanEck Semiconductor UCITS ETF
- Top 10 total 46.18%
Looking through the ETFs, a lot of exposure clusters in a handful of major chip and tech names: NVIDIA, Micron, AMD, Broadcom, ASML, TSMC, Intel, Apple, and a few others. These holdings appear via multiple funds, which creates hidden concentration because the same companies are owned in more than one place. Overlap might even be understated because only ETF top‑10 holdings are considered. This means that when key semiconductor or mega‑cap tech stocks move sharply, they can drive the overall portfolio more than the simple 50/50 ETF split suggests, amplifying both the upside and downside linked to these leaders.
Risk contribution
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VanEck Semiconductor UCITS ETF
Weight: 50.00% 67.8% -
Vanguard S&P 500 UCITS ETF USD Accumulation
Weight: 50.00% 32.2%
Risk contribution shows how much each holding adds to the portfolio’s overall ups and downs, which can differ from its weight. Here, both ETFs are 50% by weight, but the semiconductor ETF contributes about 68% of total risk, versus 32% from the S&P 500 ETF. That means the higher‑volatility semiconductor sleeve is the main driver of portfolio swings, even though it is not a majority by weight. This is a textbook example of how a concentrated, more volatile segment can dominate overall risk, like a single loud instrument standing out in an orchestra despite similar headcount.
Risk vs. return
This chart shows the Efficient Frontier, calculated using your current assets with different allocation combinations. It highlights the best balance between risk and return based on historical data. "Efficient" portfolios maximize returns for a given risk or minimize risk for a given return. Portfolios below the curve are less efficient. This is informational and not a recommendation to buy or sell any assets.
Click on the colored dots to explore allocations.
The risk‑return optimization chart shows the current portfolio sitting on or very near the efficient frontier, meaning that, for its level of risk, the mix of the two ETFs is already using them efficiently. The Sharpe ratio of 1.01 compares reasonably well with the maximum Sharpe of 1.15 available from different weightings of the same funds. The minimum‑variance mix would lower volatility but also reduce expected return and Sharpe. This suggests the existing split balances risk and return effectively within the chosen building blocks, without obvious signs of inefficient weighting between the two positions.
Ongoing product costs
- VanEck Semiconductor UCITS ETF 0.35%
- Vanguard S&P 500 UCITS ETF USD Accumulation 0.07%
- Weighted costs total (per year) 0.21%
The blended ongoing cost, or Total Expense Ratio (TER), is about 0.21% per year, combining a low‑fee S&P 500 tracker at 0.07% and a more specialised semiconductor ETF at 0.35%. TER is like a small annual service charge taken directly from fund assets. By industry standards, this overall cost level is impressively low, especially for a portfolio that includes a niche thematic component. Lower fees mean more of the portfolio’s gross return stays in your pocket over time, and the strong historical performance seen here has not relied on paying high management charges to achieve it.
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