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TMSLvsSMOXETF Comparison
T. Rowe Price Small-Mid Cap ETF (TMSL) belongs to the US Multi-Factor segment. Horizon Small/Mid Cap Core Equity ETF (SMOX) is part of the Options Strategies segment. TMSL's top 3 sector exposures are Industrials, Information Technology and Financials. In contrast, SMOX's top sector exposures are Industrials, Financials and Information Technology. TMSL is less expensive with a Total Expense Ratio (TER) of 0.55%, versus 0.75% for SMOX. TMSL is up 4.22% year-to-date (YTD) with +$357M in YTD flows. SMOX performs better with 6.57% YTD performance, and -$1M in YTD flows. Run a side-by-side ETF comparison of TMSL and SMOX below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
TMSL vs SMOX performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TMSL SMOX | -5.18%-3.13% | +3.98%+5.33% | +4.22%+6.57% | +24.47%n/a | n/an/a | n/an/a |
| Flows | TMSL SMOX | +$166M-$8M | +$391M+$50M | +$357M-$1M | +$897M- | -- | -- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TMSL SMOX | +17.07%+14.31% | +21.58%n/a | n/an/a | n/an/a |
| Max drawdown | TMSL SMOX | -6.80%-5.08% | -16.11%n/a | n/an/a | n/an/a |
| Max drawdown duration | TMSL SMOX | 11d8d | 46dn/a | n/an/a | n/an/a |
TMSL | SMOX | |
Last sale 3/11/2026 at 1:30 PM | $37.26 | $26.75 |
| Previous close 03/10/2026 | $37.24 | $26.78 |
| Consolidated volume 03/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
TMSL | SMOX | |
|---|---|---|
| Last price | $37.26 | $26.75 |
| 1D performance | +0.05% | -0.10% |
| AuM | $1.58 B | $54.16 M |
| E/R | 0.55% | 0.75% |
TMSL | SMOX | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | T. Rowe Price | Horizon Investments |
| Benchmark | - | - |
| N° of holdings | 225 | 274 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | June 15, 2023 | December 3, 2025 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the TMSL and SMOX ETFs performed in 2026?
As of March 9, 2026, TMSL is up 4.22% year-to-date (YTD), while SMOX has returned 6.57%. That puts SMOX better performer ahead so far this year.
Which ETF is attracting more investor money: TMSL or SMOX?
Year-to-date, the TMSL ETF saw +$357M in flows, compared to -$1M for SMOX.
Which ETF is bigger: TMSL or SMOX?
As of March 9, 2026, TMSL holds $1.58 B in assets under management (AUM), while SMOX manages $54.16 M.
What sectors do the TMSL and SMOX ETFs invest in?
TMSL leans toward sectors like Industrials, Information Technology and Financials. Meanwhile, SMOX focuses on Industrials, Financials and Information Technology.
What are the top holdings of the TMSL ETF and SMOX ETF?
TMSL top holdings include MKS INSTRUMENTS, POPULAR and API GROUP CORP. SMOX holds in its top three: US80004C2008, COMFORT SYSTEMS USA and CIENA.
Which ETF is more diversified: TMSL or SMOX?
TMSL holds 231 securities with 15.27% of its assets in the top 15. SMOX has 286 securities and a top 15 weight of 16.62%.
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