* Futures down: Dow 19 pts, S&P 3.75 pts, Nasdaq 10.75 pts
By Yashaswini Swamynathan
May 11 (Reuters) - U.S. stock index futures were slightly lower on Thursday ahead of a set of earnings from big U.S. retailers, including Macy's and Nordstrom.
* The surprise sacking of FBI Director James Comey by President Donald Trump on Tuesday sparked a risk-off mood in the market over worries that a potential fallout from the move could distract the president from pursuing his plans to cut taxes.
* The dollar declined against a basket of six major currencies, while prices of safe-haven gold strengthened.
* U.S. retail companies will be in focus on Thursday, with earnings from Macy's and Nordstrom expected to set the tone for other retailers.
* A report is likely to show unemployment claims rose to 245,000 last week. Also due is a reading of the producer price index for April. Both reports are due at 8:30 a.m. ET (1230 GMT).
* Oil prices rose to a one-week high amid falling U.S. inventories.
* The Dow fell slightly, while the S&P 500 and the Nasdaq edged up on Wednesday as investors digested the Comey ouster and a batch of weak earnings. Nasdaq also closed at a record high.
* Shares of Snapchat owner Snap Inc plunged 22 percent in heavy premarket trading after the company reported a slowdown in user growth and revenue in its first earnings report as a public company.
* Straight Path plunged nearly 22 percent to $175.95 after agreeing to be bought by Verizon for $184 per share and terminated an earlier deal with AT&T.
* Whole Foods was up 3.4 percent after the grocer shook up its board and appointed a new CFO.
Futures snapshot at 6:53 a.m. ET:
* Dow e-minis were down 19 points, or 0.09 percent, with 9,656 contracts changing hands.
* S&P 500 e-minis were down 3.75 points, or 0.16 percent, with 68,860 contracts traded.
* Nasdaq 100 e-minis were down 10.75 points, or 0.19 percent, on volume of 13,504 contracts. (Reporting by Yashaswini Swamynathan in Bengaluru; Editing by Anil D'Silva)