Here is a recap of the top news items from this week on Wall Street: 1. The market was awash in IPO's this week, the most since 2007:
- A123 Systems (Nasdaq: AONE) - priced at $13.50, above the expected range and finished this week at $19.81.
- Apollo Commercial (NYSE: ARI) - priced at $20 and finished this week at $18.70.
- Artio Global Investors Inc.