Snap stock slides in first full week of trading

Snap had a rough first week in the public markets, with its shares closing down in four out of five days. The lowest close came today, at $22.07 per share.

Here are the closing company valuations, fully-diluted:

• IPO: $23.63 billion
• First market open: $33.36 billion
• Peak: $40.64 billion
• Market close today: $30.67 billion