Unrest in Greece rattled global financial markets Wednesday. Stocks fell the most since June 1 as investors piled into lower-risk assets like the dollar and U.S. government bonds.

Locally, shares in DST Systems rose almost 13% after the company said it had received some feelers from private equity firms about buying the company. But DST said it had rejected any overtures and wasn't in any talks with anyone now.

In the broader market, a report on manufacturing in the New York area also came in far below forecasts. That reignited fears that factory production, one of the few bright spots in the U.S. economy, may be weaker than many economists had believed.

Thousands of people gathered on the streets of Athens to protest government cutbacks required by international lenders.

Demonstrators hurled rocks at riot police, who responded with tear gas. Greece's prime minister said he would name a new Cabinet after talks to form a new government with opposition parties failed.

The Dow Jones industrial average fell 178.84 points, or 1.5 percent, to close at 11,897.27. The drop erased all of its 123-point gain from Tuesday and put the average on track for a seventh straight week of losses. All 30 companies in the Dow dropped, led by Aluminum maker Alcoa Inc. which lost 2.9 percent. Alcoa's stock tends to swing with shifting moods about the global economy.

Shares in energy companies also fell. Chevron Corp. and Exxon Mobil Corp both lost more than 2 percent.

The S&P 500 index fell 22.45, or 1.7 percent, to 1,265.42. The Nasdaq fell 47.26, or 1.8 percent, to 2,631.46.

The BATS 1000 fell 251.35 points, or 1.71%, to close at 14,474.90.

Among local issues of interest:

Capitol Federal Financial fell 6 cents, or 0.51%, to close at $11.82.
Cerner Corp. fell $1.43, or 1.21%, to close at $117.03.
Commerce Bancshares Inc. fell 35 cents, or 0.85%, to close at $40.73.
Compass Minerals fell 62 cents, or 0.71%, to close at $86.55.
DST Systems Inc. rose $6.20, or 12.83%, to close at $54.51.
Garmin Ltd. fell 15 cents, or 0.46%, to close at $32.69.
Great Plains Energy fell 19 cents, or 0.92%, to close at $20.39.
H&R Block Inc. fell 36 cents, or 2.28%, to close at $15.42.
Inergy L.P. fell 43 cents, or 1.22%, to close at $34.71.
Kansas City Southern fell 73 cents, or 1.38%, to close at $52.23.
Sprint Nextel Corp. fell 2 cents, or 0.38%, to close at $5.31.
UMB Financial Corp. fell 61 cents, or 1.49%, to close at $40.40.
Waddell & Reed Financial Corp. fell 93 cents, or 2.53%, to close at $35.77.
YRC Worldwide Inc. fell 5 cents, or 7.10%, to close at $0.60.