Is the IWM ETF Still a Buy After Its Recent Run-Up?
iShares Russell 2000 ETF (IWM) is up 18% year to date in 2026, nearly double the S&P 500’s 10.7% return, after small caps benefited from easing tariff pressure and expectations of Fed rate cuts. The Supreme Court struck down many 2025 tariffs, and 2026 earnings are forecast to rise 19% vs 13% for the S&P 500, with IWM trading at a 17x forward P/E vs 20x for the S&P 500.
How this was made

The 30-second read
Why it matters
The article argues the next leg for IWM depends on whether rate-cut expectations fade and whether Russell 2000 earnings growth (forecast 19% YoY) materializes versus inflation/geopolitical risks.
Market read
A rates-and-earnings read-through for small-cap positioning: tariff relief and earnings growth vs. higher-for-longer inflation risk.
What to watch
Earnings growth is forecast-based; the article doesn’t address margin pressure, refinancing risk, or how much of the tariff relief is already priced into IWM.
Background
Small caps were pressured in late 2025 by high rates and tariffs; the Supreme Court struck down many 2025 tariffs in early 2026, easing a major headwind.
Market effects
Supports a read-through that small-cap credit sensitivity and tariff exposure are key swing factors for the Russell 2000 complex.
Primarily US domestic small-cap earnings and financing conditions; limited direct regional spillover beyond US rates sensitivity.
Tariff/regulatory and global growth/inflation uncertainty can still transmit via US rates and corporate margins, affecting small-cap risk appetite.
Counterpoint
If inflation re-accelerates and the Fed shifts toward hikes, small caps’ debt sensitivity could overwhelm the earnings-growth optimism.
Key entities
- ETFiShares Russell 2000 ETF (IWM)
Proxy for US small-cap performance; article evaluates whether it remains attractive after an ~18% YTD run-up.
- RegulationSupreme Court tariff ruling (2025 tariffs struck down)
Removes a stated tariff headwind that previously weighed on small caps’ outlook.
- MacroFederal Reserve rate path
Article highlights rising uncertainty around cuts versus potential hikes amid inflation near 4%.



