Here are a few highlights from this past week's earnings coverage on BloggingStocks:

• Cintas Corp. (CTAS) received an analyst's downgrade following its Q2 earnings report.
• ConAgra Foods Inc. (CAG) shares spiked after it posted better-than-expected Q2 earnings.
• Finish Line Inc. (FINL) posted surprise Q3 earnings, ending a streak of quarterly losses.
• Giga Media Ltd. (GIGM) was downgraded due to its disappointing Q2 report and lack of visibility.

Analyst Upgrades

• Keefe Bruyette upgraded TD AmeriTrade (AMTD) to outperform from market perform on valuation following the recent sell-off in shares. The firm has a $22.50 price target on the stock.
• Stifel upgraded Saia (SAIA) to buy from hold based on valuation, operating leverage and increased possibility of a large industry consolidation event in the next few months. The firm has an $18 target on the stock.
• Citigroup upgraded Atlas Pipeline Holdings (AHD) to hold from sell to reflect valuation and an improved outlook for commodity prices. The firm raised its target on shares to $6 from 50 cents.
• Manpower (MAN) was upgraded to buy from neutral at BofA/Merrill.
• IAMGOLD (IAG) was upgraded to buy from neutral at UBS.

The Chinese government is restricting online gaming for the under 18 year old demographic in order to "clean up the internet environment" and "promote civilized internet use." According to press reports, after three hours of play gamers are told to perform suitable physical exercise. After four, the player's earned point values are cut in half. And after five, the player loses all point value increases.

This move is rather significant because about 10% of the Chinese gaming population is under 18 years old, therefore it could be assumed that these measures will have a semi-significant impact on overall Chinese gaming levels.

The overall implications this move will have remain relatively unpredictable and I'm not sure how the market will react, but I've found that if the market interprets a Chinese news piece negatively it punishes many Chinese stocks, both related and unrelated to the news. If this is the case tomorrow, I'd use the weakness as a buying opportunity in two of my favorite China names: Gigamedia (NASDAQ: GIGM) and Ninetowns Internet Tech Group (NASDAQ: NINE). Gigamedia is related to Chinese gaming directly while Ninetowns isn't really related to gaming -- however it could very well sell off depending on the market's mood towards China.