Investors are growing more uneasy as the war stretches into a fifth week.
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In a weekly video to CNBC PRO subscribers, Woods explained the key levels to watch on the S&P 500 if it falls into a correction.
The S&P 500 closed below its 50-day moving average on Monday. That may herald more pressure down the road.
There's a more severe selloff on the horizon after this month's losses, the investment bank said.
The CEO of Ritholtz Wealth Management pointed out that the headline advance obscures the weakness in the typical stock.
The latest losses put the benchmark stock index down more than 3% since the U.S.-Iran war began.
The S&P 500 is within striking distance of its February highs, with inflation data and potential progress in U.S.-China trade…
