OopsfolioThe regret calculator · live market data
You bought the product.
You should've bought the company.
Discover how much money your purchases could be worth today if you'd invested instead.
Calculate My Oops
35,699 products · 4,800+ tickers
Popular mistakes
Most-calculated purchases
How it works
01
Tell us what you bought
Product, price, and the month you swiped.
02
We rewind the market
Real monthly closing prices, refreshed every night.
03
We deliver the bad news
Value today, profit missed, and a roast you deserve.