U.S. stocks were headed for a flat open Monday, as investors continued to worry about growing political unrest in Egypt.

Dow Jones industrial average, S&P 500 and Nasdaq futures were little changed before the opening bell. Futures measure current index values against perceived future performance.

On Friday, stocks logged their biggest drop in months, as mounting political protests and tensions across Egypt sparked caution among investors — sending the CBOE volatility index, known as the VIX and used to gauge fear in the market, more than 24 percent higher.

The Dow Jones industrial average lost 166 points, marking a sharp retreat for the index after it flirted with 12,000 earlier in the week.

Protests in Egypt continued over the weekend, leading Moody’s Investors Service to downgrade its rating on the nation’s government bonds to “negative” from “stable.”

But Tom Winmill, portfolio manager at Midas Funds, said the worst may be over when it comes to the impact of Egypt’s unrest on U.S. markets.

“While there’s still a lot of uncertainty regarding the outcome of the Egypt political crisis, this might be the end of the scare,” he said. “It looks like a very good buying opportunity, because once the situation is resolved I think markets will resume their upward trend.”

But Egypt won’t be the last country to fuel worries about political and economic situations abroad, said Winmill.

“I think we’ll see a lot more civil unrest as economic situations become intolerable to the general populations,” he said. “By the end of the week I think there will be a resolution and happiness will reign supreme in the markets, but let’s be prepared for the next one, because there will certainly be another crisis in another developing country.”