(CNBC) — U.S. equities closed near the flatline Tuesday after a choppy trading session, as U.S. oil prices seesawed and investors looked ahead to Fed Chair Janet Yellen's testimony.
"I think we're seeing buying on the dips; people looking long-term are seeing more value, but at the same time people are a bit cautious ahead of the Fed," said Kate Warne, investment strategist at Edward Jones.
The Dow Jones industrial average fell nearly 150 points shortly after the open, but briefly turned positive. The blue chips index briefly rose 100 points in late-afternoon trading, but closed about 12 points lower.
Advertisement - story continues below