Just came across this fascinating historical pattern that a lot of traders seem to overlook. There's this old economic cycle theory from Samuel Benner back in 1875 that actually maps out when to make money in markets. The guy was trying to decode financial cycles, and what he found was that markets tend to follow a repeating pattern of boom, recession, and panic.

So here's how it breaks down. You've got these panic years roughly every 18-20 years where financial crises hit hard – think 1927, 1945, 1965, 1981, 1999, 2019. The theory predicts the next one around 2035. During these periods, the advice is simple: don't panic sell. Just hold and wait it out.

Then there are the boom years where prices are surging and markets are recovering strong. These are your golden windows to take profits and exit positions. Looking at the pattern, we're actually in one of these boom periods right now in 2026. The theory marked years like 1928, 1945, 1960, 1980, 1989, 2000, 2007, 2016, 2020 as sell-off opportunities. Pretty interesting timing if you think about it.

The real money move happens during the recession phases though. That's when prices are depressed and everything's on sale. Years like 1924, 1931, 1942, 1951, 1958, 1978, 1985, 2005, 2012, 2023 – these were periods when smart investors loaded up. The next predicted window is around 2032. Buy when nobody wants anything, then hold until the boom returns.

The basic strategy is elegant: accumulate during hard times when assets are cheap, then sell into strength during boom periods. Avoid selling into panic years when emotions are running high. It's a long-term cycle view that's held up surprisingly well over 150 years.

Now, important caveat – this isn't gospel. Markets get shaped by countless variables: geopolitics, technological shifts, policy changes, wars, you name it. But as a framework for understanding periods when to make money and when to sit tight? It's worth studying. Especially if you're thinking about positioning for the next decade.