Futures for U.S. benchmarks were lower late Thursday as investors appear jittery about a Friday jobs report that's expected to exceed previous forecasts.

The S&P 500 slipped 0.01%, Nasdaq 0.09% and the Dow Jones Industrial Average 0.07% at 9:05 p.m. EST.

Friday's non-farm payrolls have been forecast at 175,000 new jobs but investors are optimistic the figure will come in higher because of other jobs-related economic data. However, traders have been disappointed several times this week, starting with a statement by the Federal Reserve that it may not raise rates as often as hoped this year.

Expectations, plus a mixed bag of earnings, left U.S. markets mixed Thursday. The S&P up 0.06% while Nasdaq pared 0.11% and the Dow 0.03%.

European markets were mixed as well after continental bourses turned lower on weaker pharma earnings leaving Germany's Dax off 0.27% and the Cac in Paris 0.01%. Meanwhile the Bank of England admitted its predictions about the U.K. economy post-Brexit vote were too gloomy and revised its growth forecast higher--the FTSE ended the day in London 0.47% higher.

Asia was also mixed early on the final trading day of the week with Japan's Nikkei up 0.34%, the ASX in Australia 0.1% and the Kospi in South Korea 0.03% at 9 p.m. EST. Meanwhile the Hang Seng in Hong Kong slid 0.08% in its first trading day after the week-long new year holiday.

In oil, a future for a barrel of Brent crude, the industry standard, gained 0.46%, to $56.82, while a future for West Texas crude gained 0.52%, to $53.82. The Brent crude future would be delivered in April and was valid at 8:42 p.m. EST while the West Texas future would be delivered in March and was valid at 8:51 p.m. EST.

The dollar hasn't recovered above the 100 mark on the dollar index since earlier this week. It measures the U.S. currency against a jug full of its rivals and slipped 2 basis points, to 99.80 at 8:50 p.m. EST.

In after-hours trade, shares of Amazon (AMZN - Get Report) tumbled 4.15%, to $805.10, after the e-tailing giant failed to deliver the fourth quarter that analysts had expected.

For the seasonally big December quarter, Amazon reported revenue of $43.7 billion (up 22% annually) and EPS of $1.54. The latter beat a $1.37 consensus analyst estimate, but the former fell short of a $44.7 billion consensus.

The Seattle-based company also guided for first-quarter revenue of $33.25 billion to $33.75 billion (up 15% annually at the midpoint), below a $36 billion consensus. Operating income is expected to be in a range of $250 million to $900 million, down from $1.1 billion a year earlier.

In addition, a strong dollar is clearly weighing on Amazon's results. The company saw a $558 million (2%) adverse sales impact from forex swings last quarter, a reversal from the $52 million favorable impact it saw in the third quarter. A $730 million forex hit is expected in the first quarter.

And shares of GoPro (GPRO - Get Report) cratered 12.49%, to $9.60, in extended trading after the company reported lower-than-expected revenue for the 2016 fourth quarter and guided for weak revenue in the current quarter as well.

After the market closed, the San Mateo, Calif.-based maker of action cameras said revenue rose 23.8% year-over-year to $541 million, but missed the FactSet consensus of $576 million for the period.

Adjusted earnings of 29 cents a share increased from an adjusted loss of 8 cents a year ago and topped estimates of 22 cents a share. For the fiscal 2017 first quarter, GoPro expects revenue between $190 million and $210 million, well below analysts' projections of $268 million.

Action Alerts PLUS, which Cramer co-manages as a charitable trust, has no positions in the stocks mentioned.