Time to Lock in Profits?

Banks stocks are up, time to lock in profits before the next wave down?

Royal Bank (Canada's largest) up 35.5% since February 23rd.
Bank of Nova Scotia up 24% in the same period.
Citigroup up 67% since March 6th.
Wells Fargo up 44% since March 6th.

Notice any patterns when we look at history?

Next wave down coming soon?