* Futures down: Dow 104 pts, S&P 13.5 pts, Nasdaq 33 pts
By Yashaswini Swamynathan
July 6 (Reuters) - U.S. stock index futures were lower for the second day on Wednesday as fears of instability after Britain's vote to leave the European Union added to global growth worries.
* U.S. Treasury yields US10-YT=RR touched a fresh low, while gold hit a two-year high, as investors fled to safe havens.
* The U.S. Federal Reserve will release the minutes of its June meeting at 2:00 p.m. ET (1800 GMT). Traders will peruse the comments for clues on what the Fed may do next.
* Global markets recovered some losses stemming from the Brexit vote last week, but weak economic data and worries over the fallout of the decision has brought back concerns.
* Major Asian and European indexes were trading lower. The British pound touched a new 31-year low, while China allowed the value of the yuan to touch a 5-1/2 year low.
* Oil extended losses for the third straight session as economic concerns and a strong dollar discouraged demand.
* Wall Street closed down lower on Tuesday as disappointing factory data and weak oil prices sent shivers through the markets.
* U.S. trade deficit likely increased to $40 billion in May from $37.4 billion in April due to higher oil prices. The data is expected at 8:30 a.m. ET.
* A report at 10:00 a.m. ET is expected to show the Institute for Supply Management's non-manufacturing index rose to 53.3 in June from 52.9 in May.
* Tesla's shares were down 2.3 percent at $209 in premarket trading amid continuing concerns about the electric car maker's self-driving technology after a fatality on May 7.
* Netflix fell 2.05 percent to $95.90 after Jefferies initiated coverage with an "underperform" rating and an $80 price target.
* Stocks of banks fell. Goldman Sachs and Citigroup were down a little more than 1 percent while Wells Fargo was off 0.6 percent.
Futures snapshot at 6:48 a.m. ET:
* Dow e-minis were down 104 points, or 0.59 percent, with 33,995 contracts changing hands.
* S&P 500 e-minis were down 13.5 points, or 0.65 percent, with 258,554 contracts traded.
* Nasdaq 100 e-minis were down 33 points, or 0.75 percent, on volume of 30,078 contracts. (Reporting by Yashaswini Swamynathan in Bengaluru; Editing by Don Sebastian)