lagging

This time, U.S. passenger airline stocks—represented by the S&P 500 Passenger Airlines Index External link —held up fairly well, but are lagging behind the index in 2025, having dropped roughly 3.5% this year.

Her comments add to growing fears that Europe is lagging behind the United States and China when it comes to AI, with proponents of the technology blaming issues from overregulation to underinvestment.

The specialized ETF was launched in September 2018 to exploit the short-term reversal effect, but wound up lagging the S&P 500 by almost 4 percentage points on an annualized basis.

That means small caps’ prospects over the next few years are not any greater just because they’re lagging.

Those have been lagging since the Federal Reserve’s move to raise interest rates in 2022, which made it harder to profitably sell companies that had been purchased when rates were lower.