Charted: Chewy rides Roaring Kitty roller coaster

Add Chewy to the list of meme stocks to watch.

Driving the news: Keith Gill, aka Roaring Kitty, revealed a 6.6% stake in the company in an SEC filing today.

• The stock surged at first before closing lower by — intriguingly — 6.6% on the day.

The big picture: Gill stirred volatility in the stock last week when he posted a photo of a cartoon dog with a blue background in a shade similar to Chewy's logo.