U.S. Stocks Fall as Shutdown Woes Add to Fed Angst

Volatility gripped financial markets a day after the Federal Reserve sent shock waves across assets, with the rising threat of a government shutdown adding to a litany of concerns buffeting equities. The dollar sank with crude oil.

The S&P 500 Index whipsawed throughout the day in heavy trading before closing at a 15-month low as investors debated whether the Fed set up the central bank for a policy error. Shares turned sharply lower after President Donald Trump hardened his demands in the showdown with Congress over funding the government. “I’ve made my position very clear — any measure that funds the government must include border security,” the president said at White House event.

The Nasdaq Composite index slumped to the brink of a bear market, finishing almost 20 percent off its August record. The S&P 500 is down more than 10 percent in December, on track for its worst month of the record bull run.

Among the major stock moves:

The broader FAANG cohort of shares plunged more than 3 percent and the group is now 25 percent below its record. Twitter tumbled 11 percent in the biggest rout since July. Tech high fliers GoPro and Snap skidded to all-time lows, each down at least 5 percent. Walgreens Boots Alliance lost as much as 6.6 percent to lead all but one of 30 Dow components lower. The S&P 500 has lost about 15 percent this quarter, the most during the record bull run.

Currency traders took the Fed’s lowering of expectations for future hikes as a somewhat dovish turn. The weak greenback spurred a rally in developing-nation assets, sending an ETF that tracks the emerging equities to its best gain in a week. Treasury investors remained on edge after the Fed said quantitative easing was on “autopilot.” The front end of the yield curve rose, while longer-dated bonds saw rates holding steady near multimonth lows.

Crude added to anxiety on financial markets, with the American benchmark sinking below $47 a barrel. And a renewed U.S. push against alleged intellectual property theft by Chinese nationals is contributing to uncertainty over the direction of the simmering trade conflict.

The Stoxx Europe 600 recovered some losses but closed broadly lower, while Japanese shares slid into a bear market. The pound trimmed a gain after Britain’s central bank said it now sees inflation slowing to below the 2 percent target as soon as January. Benchmark 10-year Treasuries retreated after steep gains on Wednesday. The greenback slid against almost every major counterpart, helping the yen score its biggest gain since November 2017.

In Japan, 10-year bond yields fell to within three basis points of zero percent. Bank of Japan Governor Haruhiko Kuroda said in a press conference Thursday that there was no problem if yields fell into negative territory, suggesting he has no plan to intensify the central bank’s tapering of asset purchases.

Here are some events investors will focus on in the coming days:

U.S. personal income and spending data are due Friday, along with a gauge of inflation.