1. Apple shares were trading down a fraction by Wednesday afternoon at $421.80.

2. Shares ended the regular trading day on Thursday up 0.5%.

3. Shares of Twitter were virtually flat Wednesday, trading around $45.10.

4. On Wednesday, they were trading slightly higher at $32.72.

5. At one point in early trading the shares were up 7%.

6. The stock has more than doubled since it began trading July 31.

7. Google shares were trading up after hours Thursday at $582.33, after closing at $573.73.

8. The stock fell as low as $65.54 in extended trading after closing at $74.89.

9. Its shares on Friday morning were trading up 0.2% at around $126.70.

10. In early trading Thursday, Apple was up 1.4% to $572.67.

11. Cisco shares fell about 1.5 percent in extended trading, after closing at $25.11.

12. In heavy trading Thursday, Verizon shares rose 2.7% to end at $47.82.

13. Shares slipped 5.8 percent in extended trading after closing at $47.02.

14. When Apple launched the iPhone 5 a year ago, the stock was trading above $700.

15. During regular trading, the stock added 47 cents to $68.17.