Bottoming is best thought of as a process rather than a moment. The all look different but when you see a correction it usually hits these stages:

• A negative catalyst appears, usually when stocks are expensive. Expensive stocks get sold. Investors "rotate" with growing speed.
• The threat seems larger. Inevitable. The rush to the exit picks up pace in stocks. Everyone's running the same playbook and "sell" is the only defensible call as every group sells-off.
• The tide turns, slowly then all-at-once. The risk becomes quantifiable. Bad news becomes more company specific. Selling slowly dries up as (dirty truth of investing here): The Optimists Always Win.

That was the case to a much greater degree the greatest bottom in the history of consumer discretionary stocks in March of 2020. The group was down 35% in just over a month. Stores were shutting down day after day, leading to pretty much the entire economy being shutdown for the foreseeable future. 

It was a really hard time to start buying consumer discretionary stocks. Like a Trade...