Buy Meta when it falls below its normal range. The normal range here is its average price over the last 20 trading days, plus and minus twice its recent daily movement. A close below the bottom of that range is the trigger. Buy at the next day open. Sell when the price gets back to the middle of the range, or sell at a small loss if it falls further first. If neither happens in 10 trading days, sell anyway.
Period: 2016-11-01 to 2026-10-30. Trades in this test: 60. Final cumulative profit and loss in this test: -11.9%.
Historical test only. Past results do not predict future results, and this is not investment advice.