A number of companies released their quarterly earnings results today, as reported by Analyst Ratings Network (http://bit.ly/arndailye) and Equity Briefing: Advanced Energy Industries (NASDAQ: AEIS) posted its quarterly earnings results on Monday.

There's no foolproof way to know the future for Quaker Chemical (NYS: KWR) or any other company. However, certain clues may help you see potential stumbles before they happen -- and before your stock craters as a result.

Quaker Chemical logo Quaker Chemical (NYSE: KWR) issued its quarterly earnings data on Monday. The company reported $0.81 EPS for the quarter, beating the Thomson Reuters consensus estimate of $0.80 by $0.01.

The following table lists the 99 U.S. companies that reported quarterly earnings today (end date of the quarter is noted in the last column).

The following U.S. companies reported higher earnings per share for their latest quarter (end date of the quarter is noted in the last column).

U.S. Companies Reporting Positive EPS Surprises, July 30. By Wendy Soong - 2012-07-30T22:11:08Z. The following U.S. companies reported positive surprises or matched expectations today.

By Wendy Soong - 2012-07-30T22:11:08Z. The following U.S. companies reported higher earnings per share for their latest quarter (end date of the quarter is noted in the last column).

Quaker Chemical Corp : Quaker Chemical Corporation Announces Second Quarter 2012 Results. 07/30/2012 | 04:35pm US/Eastern. CONSHOHOCKEN, Pa.

CONSHOHOCKEN, Pa., July 30, 2012 /PRNewswire via COMTEX/ -- Quaker Chemical Corporation (NYSE:KWR) today announced net sales of $176.8 million for the second quarter of 2012, up 5% compared to second quarter 2011 net sales of $167.8 million ...

Quaker Chemical Co. logo Quaker Chemical (NYSE: KWR) was upgraded by equities research analysts at Sidoti from a �neutral� rating to a �buy� rating in a research note issued to investors on Friday.