Updated from 6:59 a.m.

NEW YORK (TheStreet) -- Here are 10 things you should know for Tuesday, Aug. 4:

1. -- U.S. stock futures were slumping on a busy earnings day, even as Greece announced it is expecting to finalize its bailout deal by Aug. 18.

European stocks were mixed on Tuesday as the Greek equities selloff entered a second day and as companies from German carmaker BMW (BAMXY) to French insurer Axa (AXAHY) posted earnings. Meanwhile in Greece, financial stocks again led the Athens Stock Exchange General Index 1.1% lower on a second day of post-shutdown pent-up selling.

In London, the FTSE 100 inched up 0.19%, while in Germany, the DAX added 0.13%. In Paris, the CAC 40 shed 0.33%.

Asian stocks fell slightly. Tokyo's Nikkei was 0.14% lower, while Hong Kong's Hang Seng slid 0.02%.

2. -- The economic calendar in the U.S. on Tuesday includes the Gallup Economic Confidence Index at 8:30 a.m., the comparable-store sales Redbook at 8:55 a.m., and factory orders data at 10 a.m.

3. -- U.S. stocks on Monday sank as market volatility spiked and as oil prices fell. Conflicting economic data didn't help.

The Dow Jones Industrial Average (DIA) - Get Report fell 0.52% to 17,598.20. The S&P 500 (SPY) - Get Report closed down 0.28% to 2,098.04. The Nasdaq (QQQ) - Get Report dipped 0.25% to 5,115.38.

4. -- Auto sales rose in July by 5.3% over sales a year ago. Cheaper financing, lower gas prices and an improving economy helped the sales beat estimates. SUVs and trucks -- especially crossovers -- led sales. On a seasonally adjusted basis, 17.55 million cars and trucks were sold in July.

5. -- Greece said it was expecting to have fleshed out the terms of its bailout deal by Aug. 18. The debt-laden country plans to begin drafting the bailout terms beginning Wednesday.

Greece is in a long-term effort to refinance its heavy debt load with its European creditors. Although it has already agreed to the general terms of a bailout -- financing in exchange for a jump in taxes, cuts to pensions and sales of national assets -- the specifics will now be spelled out.

6. -- Troubled coal giant Alpha Natural Resources (ANRZ) filed for chapter 11 bankruptcy. The miner has debts of more than $3 billion and faces both falling demand and lower prices for coal.

Alpha has had a steep slide in market value since 2011, when it spent about $7 billion to buy Massey Energy. Anticipated purchases of coal by China didn't materialize, and the U.S. is shifting more to natural gas and renewable energy.

Shares in Alpha Natural Resources, which trades over the counter as a penny stock, fell another 24% on the news.

7. -- Community Health Systems (CYH) - Get Report, the second-largest publicly traded hospital chain in the U.S., will spin off 38 hospitals, along with its consulting wing, creating a new company. Quorum Health, the newly separate company, will also be publicly traded, and will focus on hospitals in small towns as Community Health focuses on larger cities.

The Quorum Health businesses generated about $2.1 billion in revenue in 2014.

The deal is expected not to generate taxes for Community Health shareholders, and planned to close by the first quarter of 2016.

In premarket trading, Community Health shares were up 4.3%.

8. -- The U.S. commonwealth of Puerto Rico is in a debt crisis. The island paid only a small portion of a bond payment due for August -- $628,000 on a required payment of $58 million. Rating agency Moody's described this as a debt default.

Puerto Rico owes $72 billion, an especially onerous sum given the island's small population and limited resources. Municipal bond funds and individual investors hold much of the debt.

9. -- Sprint (S) - Get Report announced that it is appointing a new CFO, Tarek Robbiati, as part of CEO Marcelo Claure's attempt to get the telecom company back in shape. Joseph Eutenauer will step down after more than four years as CFO.

Sprint has already written down its value by $1.9 billion this year. It reports earnings before the opening bell.

In premarket trading, Sprint stock was jumping by 5.4%.

10. -- Earnings reports Tuesday include Aetna (AET) , Cedar Fair  (FUN) - Get ReportCoach  (COH) CVS Health  (CVS) - Get ReportKellogg (K) - Get Report and Sprint (S) - Get Report before the opening bell, and First Solar (FSLR) - Get Report and Walt Disney  (DIS) - Get Report after the closing bell.