Editors' pick: Originally published Oct. 30.

News that the FBI is reopening its investigation into Hillary Clinton's email use as Secretary of State rocked markets Friday. Many Clinton-friendly stocks were in the red as well.

TheStreet's Hillary Clinton Stock Portfolio, a set of 15 stocks set to prosper under a Clinton presidency, is down 0.36% mid-afternoon Friday. Health care stocks Aetna (AET) and HCA Holdings (HCA - Get Report) were the hardest hit, dipping 3.68% and 2.85%, respectively, as well as U.S. Steel (X - Get Report) , which is down 1.95% for the day. The SPDR S&P 500 ETF Trust (SPY - Get Report) fell 0.31%.

Bureau director James Comey said in a letter to the Senate Judiciary Committee on Friday that the FBI will again be looking into Clinton's use of email at the State Department after discovering emails that appear to be pertinent to the investigation. The FBI previously closed its investigation in July.

Comey at the time called Clinton's team's use of email "extremely careless" but did not recommend the Department of Justice bring charges against her or any of her aides.

Markets dipped nearly immediately in reaction to the news.

The S&P 500 fell 17.9 points to 2122.37 from 2140.27 from 1:00 p.m. ET around when the story broke to 2:00 p.m. an hour later. The Nasdaq dipped 39.38 points to 5187.94 to 5227.32.

Global markets this election cycle have reacted positively to the prospect of a Clinton presidency while appearing more jittery regarding a potential victory for her rival, Republican nominee Donald Trump.

Healthcare companies HCA Holdings (HCA - Get Report)  and Aetna were the worst performers in the Clinton portfolio Friday. Both companies would benefit from improvements to the Affordable Care Act Clinton has pledged to make in the White House and other elements of her platform related to the healthcare sector.

U.S. Steel, which is in both the Clinton and Trump portfolios given the candidates' pledges to be tougher on trade and China than the Obama administration, fell as well.

Renewable Energy Corporation (REGI - Get Report) , CACI International (CACI - Get Report) and Goldman Sachs (GS - Get Report) , which are also in the Clinton portfolio, are in the red Friday afternoon as well.

Aecom (ACM - Get Report) and L-3 Communications (LLL - Get Report) , government contractors that might do well under Clinton's policies related to infrastructure and surveillance, are up for the day 1.72% and 1.56%, respectively.

Here's how the entire Clinton portfolio is performing on Friday in the wake of the FBI investigation revelations, leading with the best performers:

Aecom 1.72%

L-3 Communications 1.56%

Tyson Foods TSN 1.34%

Netflix (NFLX - Get Report) 0.38%

Walmart (WMT - Get Report) 0.30%

American Electric Power Company (AEP - Get Report) 0.24%

Smith & Wesson  (SWHC) 0.16%

SPDR S&P 500 ETF Trust -0.31%

SolarCity (SCTY) -0.39%

Goldman Sachs -0.42%

CACI International -0.71%

Renewable Energy Group -0.82%

U.S. Steel -1.95%

HCA Holdings -2.85%

Aetna -3.68%