Futures for U.S. markets were negative Wednesday evening with investors catching their breath after another up day on Wall Street. Asia opened mixed over currency concerns.

Futures for the S&P 500 lost 0.04% while Nasdaq pared 0.07% and the Dow Jones Industrials slipped 0.02% at 9:02 p.m. EDT.

Euphoria over the Federal Reserve's decision to leave rates unchanged led to strong gains in both the U.S. and Europe Thursday, including a second record-setting day on Nasdaq. Investors will now look to economic indicators for guidance and whether or not to bet on risky equities.

The S&P closed 0.65% higher Thursday while the Dow gained 0.54%. Nasdaq added 0.84% to a record 5,339.52 points.

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Asia wasn't as happy after the good news out of the U.S. strengthened the yen, leading investors to fret over exports. The Nikkei was 0.16% lower at 8:52 p.m. EDT, while the Kospi in South Korea gained 0.14% and the ASX in Australia added 038%. The Hang Seng in Hong Kong added 0.38% at the same time.

The yen gained 0.2313% at 8:54 p.m. EDT to ¥100.983 and the pound slipped 0.06% to $1.3067, unable to hang onto a Thursday recovery.

Europe also gained on Thursday as investors there hope stronger U.S. markets can help offset stumbling economies. Germany's Dax added 2.28%, London's FTSE 1.12% and the Cac in Paris 2.27% Thursday.

Oil was on the mend for most of Thursday but leaked backward as Asia awoke with futures for a barrel of industry standard Brent crude delivered in November going for $47.38, a 0.57% decline, and futures for West Texas crude delivered in October 0.71% lower at $45.99 per barrel at 9:05 p.m. EDT.

In after-hours trading, shares of micro-blogging site Twitter (TWTR) - Get Report slipped 3.6% to $17.96 after RBC Capital Markets lowered its stock rating to underperform from market perform this afternoon. The firm also cut its price target to $14 from $17, saying the social media site's "value proposition" to advertisers could be slipping, according to Barron's.

RBC conducted a survey of about 1,100 advertising experts, and the results showed they were planning to allocate more online advertising spending to companies such as Alphabet's (GOOGL) - Get ReportGoogle and Facebook (FB) - Get Report rather than San Francisco-based Twitter.

Shares of airplane services company AAR (AIR) - Get Report gained 4.79% in extended trading to $30.40 after the company posted fiscal first quarter earnings per share of 28 cents, beating analyst expectations by 2 cents. Wood Dale, IL-based AAR said it had $404.8 million in sales in the quarter, a 4.7% increase over the same period a year earlier on higher government contracts.

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