YAHOO [BRIEFING.COM]: The stock market fell to June lows by logging its worst single-session percentage loss in one month. Most of the losses were registered in the first leg of trading, leaving stocks to spend the rest of the session moving sideways.

Sellers pushed against stocks in concerted fashion. In turn, 95% of the companies in the S&P 500 finished with a loss.

The selling effort was most intense against materials stocks, which dropped 3.5%. Commodities and basic materials stocks were pressured by an increase in the U.S. dollar, which came after a Russian official made supportive comments regarding the dollar's role as a reserve currency.

With the Dollar Index jumping 1.2% gold and silver fell to monthly lows. Gold dropped 1.4% to $927.30 per ounce, while silver shed 5.7% to settle at $14.03 per ounce in pit trading. Steel stocks sank 4.8% and diversified metals and mining stocks dropped 5.8%.

Industrial stocks also saw steep losses. The sector dropped 3.1%. 3M (MMM 59.31, -1.69) was a primary laggard and also weighed on the Dow. Microsoft (MSFT 23.42, +0.09) and American Express (AXP 25.23, +0.07) were the only two components in the blue chip index to log gains. The advance by American Express came after the company posted some better-than-expected monthly metrics.

Health care facilities stocks (+3.6%) and health care tech stocks (+1.9%) were able to garner some of the little support that was left in the market. Their advance came as health care suppliers (-2.7%) and health care equipment stocks (-2.9%) sank amid reports that President Obama is looking to cut $313 billion in new health costs.

Amid the steep and broad-based losses seen among stocks, Treasuries were able to find support, which continues to pull back Treasury yields from 2009 highs. The benchmark Note was recently quoted 18 ticks higher, which resulted in a yield of 3.72%.

Net long-term Treasury international capital (TIC) flows for April totaled $11.2 billion, which is far less than the $57.5 billion that was expected, and down from the $55.4 billion tally for March.

Overseas markets also showed weakness Monday as the major indices throughout Europe and Asia logged sizable losses following a weekend meeting of eight global economic powers, from which officials are looking at ways to unwind recent fiscal stimuli. U.S. Treasury Secretary Geithner stated that it is too early to withdraw stimulus, though.DJ30 -187.13 NASDAQ -42.42 SP500 -22.49 NASDAQ Adv/Vol/Dec 552/2.19 bln/2127 NYSE Adv/Vol/Dec 457/1.15 bln/2595