At 30 September 2026, the Vanguard FTSE All-World UCITS ETF (VWRA) held 3,821 stocks, drawn from an index of large and mid-sized companies in developed and emerging markets. Small caps sit outside that index entirely. For investors in Singapore whose portfolio rests on a global core fund, small cap ETFs are the usual way to add the slice of the market the core leaves out.
A small-cap ETF holds companies at the lower end of the listed market by value, and a value ETF holds companies that look cheap against their earnings or book value. The two can differ sharply from the core. The iShares Core S&P Small-Cap ETF (IJR) traded at a price-to-book ratio of 1.88 on 22 October 2026, against 5.70x for the iShares Core S&P 500 UCITS ETF (CSPX) at 30 September 2026.
Most of these funds are US-listed and US-domiciled, such as IJR, IJS, VBR and AVUV. A smaller group are Ireland-domiciled UCITS ETFs listed in London, which change how US dividends are taxed and how estate tax applies.
The options fall into four groups: plain small-cap funds, small-cap value funds, large-cap value funds, and look-alikes such as equal-weight and moat strategies that are often filed under the same heading. Each carries a different factor exposure, and some overlap more with a global core than their names suggest.
This guide explains the size and value factors, how the main US-listed and UCITS funds compare on index, fee and valuation, how growth and look-alike funds differ, how a 10% or 20% small-cap tilt changes a VWRA portfolio, the risks across market cycles, and how to size a tilt.
Small-cap and value ETFs at a glance
Each fund below targets a different combination of company size and valuation. VUG is included as a growth contrast.

Factor map placing small-cap, value, growth and global core ETFs by company size and valuation style
| Fund | Ticker | Factor exposure | Index or approach | Domicile | Expense ratio | Best for |
|---|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | IJR | US small cap, blend | S&P SmallCap 600 | US | 0.06% | A low-cost US small-cap sleeve with an earnings screen |
| iShares S&P Small-Cap 600 Value ETF | IJS | US small cap, value | S&P SmallCap 600 Value | US | 0.18% | A rules-based small-cap value tilt |
| Vanguard Morningstar Small-Cap Value ETF | VBR | US small cap, value | Morningstar US Small Cap Value | US | 0.05% | A broad small-cap value fund at a low fee |
| Avantis U.S. Small Cap Value ETF | AVUV | US small cap, value | Actively managed | US | 0.25% | Investors who accept active stock selection |
| SPDR MSCI USA Small Cap Value Weighted UCITS ETF | USSC | US small cap, value | MSCI USA Small Cap Value Weighted | Ireland | 0.30% | A UCITS route to US small-cap value |
| iShares MSCI World Small Cap UCITS ETF | WSML | Developed-market small cap, blend | MSCI World Small Cap | Ireland | 0.35% | Global small caps in one accumulating fund |
| Vanguard Morningstar Value ETF | VTV | US large cap, value | Morningstar US Large Cap Value | US | 0.03% | A value tilt within large companies |
| Vanguard Morningstar Growth ETF | VUG | US large cap, growth | Morningstar US Large Cap Growth | US | 0.03% | A growth contrast to the value funds |
Source: iShares IJR, iShares IJS, Vanguard VBR, Avantis AVUV, State Street USSC, iShares WSML, Vanguard VTV, Vanguard VUG (as of 25 October 2026)
What are small-cap and value ETFs?
Both are factor funds: they hold a slice of the market chosen by a measurable characteristic, then weight it by a rule. Size and value are the two oldest factors in academic finance. Eugene Fama and Kenneth French found that two variables, size and book-to-market equity, captured much of the variation in average US stock returns between July 1963 and December 1990.
The size factor
Size is measured by market capitalisation, the share price multiplied by shares outstanding. Each index provider draws its own line: the S&P SmallCap 600 applies size and eligibility rules to US companies, while MSCI and Morningstar set separate size bands. Two small-cap funds can therefore hold quite different companies.
The value factor
Value funds rank companies on price against fundamentals, usually price-to-book, price-to-earnings or forecast growth. A low ratio means investors are paying less for each dollar of book value or earnings. Value funds tend to hold more financial and industrial companies and fewer high-growth technology names.
Quality screens
Some small-cap indexes add a profitability test. The S&P SmallCap 600 requires that the sum of a company's most recent four quarters of as-reported earnings be positive, as well as the most recent quarter's earnings. The Russell 2000 has no such rule, so IJR excludes many loss-making small companies that a Russell 2000 fund would hold.
How small-cap and value funds compare on valuation
Price ratios show how strongly each fund leans towards cheaper companies. Lower price-to-book and price-to-earnings figures mean a stronger value tilt.
| Fund | Style | Price to earnings | Price to book | Data date |
|---|---|---|---|---|
| VUG | US large-cap growth | 32.1x | 12.0x | 30 September 2026 |
| CSPX | S&P 500 | 30.28x | 5.70x | 30 September 2026 |
| VTV | US large-cap value | 19.1x | 3.1x | 30 September 2026 |
| WSML | Developed-market small cap | 18.35x | 1.98x | 22 October 2026 |
| VBR | US small-cap value | 15.6x | 1.9x | 30 September 2026 |
| IJR | US small cap | 18.68x | 1.88x | 22 October 2026 |
| USSC | US small-cap value | 11.99x (forward) | 1.65x | 22 October 2026 |
| IJS | US small-cap value | 16.92x | 1.43x | 22 October 2026 |
Source: Vanguard VUG, iShares CSPX fact sheet, Vanguard VTV, iShares WSML, Vanguard VBR, iShares IJR, State Street USSC, iShares IJS (as of 25 October 2026). USSC's price-to-earnings figure uses forecast earnings for the next financial year.
The spread is wide. VUG's price-to-book ratio of 12.0x is more than eight times IJS's 1.43x. IJR, a plain small-cap fund with no value screen, still trades on a lower price-to-book than VTV, the large-cap value fund. In this snapshot, the small-cap funds all traded on lower ratios than the large-cap funds, so even a plain small-cap fund brings a value lean of its own.

Price-to-book ratios of growth, S&P 500, value and small-cap ETFs in 2026
Small-cap ETFs: US-listed and UCITS
Two broad small-cap funds cover most needs: one US-only and one across developed markets.
IJR tracks the S&P SmallCap 600 with 637 holdings as of 22 October 2026, at a 0.06% expense ratio. It launched on 22 May 2000 and pays distributions quarterly. Financials (18.67%) and industrials (17.51%) were its largest sectors, with information technology at 12.34%, a much smaller share than in the S&P 500.
WSML is the iShares MSCI World Small Cap UCITS ETF, an Irish accumulating fund with 3,578 holdings as of 22 October 2026 and a TER of 0.35%. It trades in USD on the London Stock Exchange and covers small companies across developed markets, so it adds Europe, Japan and other markets as well as the US.
The trade-off is cost against breadth and domicile. IJR is cheaper and more concentrated in one market. WSML costs more each year but spreads the small-cap sleeve across developed markets and sits in an Irish structure.
Small-cap value ETFs
Small-cap value funds stack both factors: they start with small companies, then favour the cheaper ones. They differ in index and weighting, and in whether a manager picks the stocks.
IJS tracks the S&P SmallCap 600 Value Index, a subset of IJR's index. It had 476 holdings as of 22 October 2026 and a 0.18% expense ratio, and its price-to-book of 1.43 was the lowest among the funds covered.
VBR tracks the Morningstar US Small Cap Value Index. At 30 September 2026 it held 820 stocks with a median market capitalisation of US$9.9 billion, for a 0.05% expense ratio.
AVUV is actively managed, and its manager does not seek to replicate the performance of a specified index. Its expense ratio is 0.25%. Active selection means the portfolio can move away from any index, for better or worse.
USSC, the London USD line of the SPDR MSCI USA Small Cap Value Weighted UCITS ETF, held 1,626 stocks as of 22 October 2026 for a TER of 0.30%. It tracks the MSCI USA Small Cap Value Weighted Index and is Irish-domiciled and accumulating, with ISIN IE00BSPLC413.
Value ETFs versus growth ETFs
Value and growth sit at opposite ends of the same scale, and the gap between them is large in 2026.
VTV tracks the Morningstar US Large Cap Value Index. At 30 September 2026 it held 298 stocks with a median market capitalisation of US$168.9 billion, and financials (21.2%), industrials (15.8%) and health care (15.6%) were its largest sectors. It adds a value tilt while staying with large companies.
VUG is the growth side. It held 135 stocks, with technology at 72.1% of the fund and the top ten holdings at 65.7%, led by NVIDIA at 13.5%. Growth funds are a contrast to value, and putting VUG next to VTV in a portfolio mostly cancels out the style tilt of each.
Equal-weight and moat funds follow different strategies
Two funds often appear in lists of small-cap and value ETFs without fitting either label.
RSP is an equal-weight S&P 500 fund
The Invesco S&P 500 Equal Weight ETF (RSP) is a passive fund tracking the S&P 500 Equal Weight Index, launched on 24 April 2003. It holds the same companies as the S&P 500 but gives each a similar weight at rebalancing. That shifts weight from the largest companies to the smaller members of the index, which are still large and mid-sized firms, so RSP carries a mid-cap tilt and trades more at each rebalance. Its holdings stop at the S&P 500's size range.
MOAT is a competitive-advantage strategy
The VanEck Morningstar Wide Moat ETF (MOAT) tracks the Morningstar Wide Moat Focus Index, which picks companies Morningstar's analysts consider to have lasting competitive advantages and that trade at attractive prices against Morningstar's fair-value estimates. It held 55 holdings as of 22 October 2026, reconstitutes quarterly and has a 0.46% expense ratio. The fair-value screen gives it some value character, but the portfolio rests on analyst judgement about competitive advantage, a different idea from a low price-to-book ratio.
How a small-cap tilt changes a global core
A global core fund such as VWRA covers large and mid-sized companies, so a small-cap fund adds new holdings. It also changes the country mix. At 30 September 2026, 62.24% of VWRA was in US stocks, and IJR is entirely US.
Take a S$100,000 portfolio that starts in VWRA, then moves 10% or 20% into IJR.
| Portfolio | VWRA | IJR | Small-cap share | US share | NVIDIA look-through |
|---|---|---|---|---|---|
| Global core only | S$100,000 | S$0 | 0% | 62.24% | 5.01% |
| 10% small-cap tilt | S$90,000 | S$10,000 | 10% | 66.02% | 4.51% |
| 20% small-cap tilt | S$80,000 | S$20,000 | 20% | 69.79% | 4.00% |
Example only, based on Vanguard VWRA and iShares IJR (as of 25 October 2026). Assumes VWRA weights at 30 September 2026 (US 62.24%, NVIDIA 5.0056%), IJR treated as 100% US small cap, and no rebalancing.
A 20% IJR sleeve gives the portfolio a fifth in small companies and dilutes the largest technology names, cutting NVIDIA's look-through weight from 5.01% to 4.00%. It also lifts the US share from 62.24% to 69.79%. Investors who want the size tilt without adding US weight can use a developed-market fund such as WSML, which spreads the sleeve across several markets.

How a 10% or 20% IJR tilt changes small-cap, US and NVIDIA exposure in a VWRA portfolio
A value tilt works the same way. Moving part of a VWRA holding into IJS or VBR lowers the portfolio's average valuation and shifts weight towards financials and industrials, while the core keeps the broad market in place.
Returns and risk across market cycles
Factor premiums have been measured over long periods and have never arrived on a schedule. The Fama and French finding covered US data to 1990. Small-cap and value funds can trail the broad market for many years in a row, and an investor who abandons a tilt after a weak stretch keeps the underperformance and misses any recovery.
Smaller companies tend to be more sensitive to the economic cycle and to credit conditions, because many have less diversified revenue and less access to funding. Value funds hold more financials and industrials, so they react to interest rates and the business cycle differently from a technology-heavy index. Both kinds of fund carry tracking error against a market-weighted index: returns will differ from VWRA's, in both directions.
Volatility is usually higher too. A smaller company's share price moves more on a single earnings report, and small-cap funds are less liquid than large-cap funds when markets are stressed.
US-listed or UCITS: tax and access
Domicile shapes the tax drag. US-source dividends paid to nonresident aliens face a 30% default withholding rate unless a lower treaty rate applies, and Singapore does not appear in the IRS treaty rate table. An Irish fund holding US shares can receive US dividends at the 15% general treaty rate for Ireland at the fund level. Singapore generally does not tax capital gains from the sale of shares and financial instruments for individuals investing personally.
Estate tax is the second difference. US-domiciled ETFs such as IJR, IJS, VBR and AVUV are US-situs assets, and the estate of a non-US person must file Form 706-NA when US-situs assets exceed US$60,000. WSML and USSC are Irish funds and sit outside that rule. A tax adviser can confirm how this applies to you.
To buy a US-listed fund you need a broker with US market access and a completed W-8BEN form; UCITS funds trade on the London Stock Exchange in USD. A separate guide covers the full buying workflow and broker costs.
How to size a factor tilt
The right size for a tilt depends on how much tracking error you can live with and how long you can hold through a weak run.
Start from the core. If most of your equities sit in VWRA or an MSCI ACWI fund, small caps are missing and a small-cap fund adds new exposure. If you already hold a total-market fund, part of that gap is already covered.
Pick one factor at a time. A plain small-cap fund such as IJR adds size with a mild value lean. A small-cap value fund such as IJS or VBR adds both, which strengthens the tilt and the tracking error.
Choose a size you can keep. A 10% sleeve changes the portfolio's character modestly, while 20% or more makes the factor's long dry spells far more visible. Writing down the reason for the tilt helps when it lags.
Rebalance on a rule. Small caps and value move differently from the core, so the sleeve drifts. Rebalancing once a year, or when the sleeve moves several percentage points from target, keeps the tilt at the size you chose.
What does not belong in a small-cap or value shortlist
Lists of small-cap and value ETFs often mix in funds with other jobs. A nuclear energy fund such as NLR is a sector theme, and an emerging-markets fund such as VWO is a regional allocation.
A total-market fund such as VTI is a broad core holding. Growth funds such as VUG and MGK sit at the opposite end of the value scale. Each can have a place elsewhere in a portfolio, but it is built around something other than company size or a low valuation.
Add a small-cap sleeve with StashAway
ETF Explorer lets you add a small-cap sleeve with IJR, the S&P SmallCap 600 fund on its Small Cap page. Dedicated small-cap value funds aren't on the platform, so IJR gives you the size tilt rather than a value tilt. For the core it sits beside, VWRA is on Global Equities (FTSE) and ISAC on Global Equities.
Each buy or sell order costs US$1 (excluding GST), with no management fee on top, and you can pay with cash or SRS.
Small caps tend to swing more than large caps, so you could get back less than you invest.
Frequently asked questions
Short answers to common questions about small-cap and value ETFs.
What is a small-cap ETF?
A small-cap ETF holds companies at the smaller end of the listed market by market value, chosen and weighted by an index or a manager. IJR, for example, tracks the S&P SmallCap 600, while WSML covers small companies across developed markets.
Does VWRA include small caps?
No. VWRA tracks the FTSE All-World Index, which covers large and mid-sized companies in developed and emerging markets. Investors who want small-cap exposure alongside VWRA need a separate fund.
Is RSP a small-cap ETF?
RSP holds the S&P 500 at equal weights, so every holding is a large or mid-sized company. Equal weighting shifts weight from the biggest companies to the smaller members of the index, which gives it a mid-cap tilt without any small caps.
What is a value ETF?
A value ETF favours companies that look cheap on measures such as price-to-book or price-to-earnings. VTV does this among large US companies, while IJS and VBR do it among small ones.
Is IJR a value fund?
IJR has no value screen, so it is a blend small-cap fund. Its price-to-book of 1.88 on 22 October 2026 was still below the large-cap value fund VTV's 3.1x, because smaller companies tend to trade on lower ratios.
Are small-cap value ETFs more volatile?
Usually, yes. Smaller companies react more to the economic cycle, credit conditions and single earnings reports, and value funds hold more cyclical sectors such as financials and industrials. Expect returns that differ from a global index fund for long stretches, in both directions.

