If you invest for income, you've probably noticed something annoying. The S&P 500's dividend yield is sitting near generational lows right now, and retirees who built their whole strategy around dividend checks are having a real moment of reckoning.

And I get it. If you retired a few years ago with a portfolio built around dividend income, the yield on those same stocks has shrunk even as your portfolio value went up. The dollars coming in may have actually grown, because companies keep raising their payouts. But the yield as a percentage of what your portfolio is now worth has gotten thinner. The math is weird and frustrating.

Why it happened is pretty straightforward. Stock prices surged way faster than dividend payouts. So the yield, which is just the dividend divided by the stock price, shrinks. The companies aren't paying you less in raw dollars. They're paying you less relative to what the stock is now worth. It's like if you bought a rental house for $200,000 and it went up to $400,000 but the tenant's rent only went up a little. You're richer on paper but your cash flow percentage just got squeezed.

I think about this stuff because my own index fund portfolio, the one I keep buying every single month no matter what, is sitting on some solid gains. My cost basis is low enough that my effective yield looks fine. But someone buying in today is getting a yield around 1.2 percent. That is slim.

So what do you actually do if you're retired or close to it?

The first thing I'd say, and Warren would back me up on this one, is don't chase yield. I repeat: do not chase yield. When people get desperate for income they start buying stocks with 8 or 9 percent dividend yields without asking why the yield is that high. Usually it's because the stock price crashed and the company is about to cut the dividend. That's not a bargain. That's a trap.

The second thing is that total return matters more than dividend yield. I know that sounds like something a finance bro would say at a party. But it's true. If your portfolio is up 18 percent for the year and the dividend yield is scraping historical lows, you have options. You can sell some shares to create your own dividend. Nobody wants to sell shares, I get it, it feels bad emotionally. But mathematically, selling 4 percent of a portfolio that grew 18 percent still leaves you way ahead.

The third thing, and this is where Warren and I would probably disagree a little, is that some income seekers should look at dividend-focused ETFs or even individual dividend aristocrats if you want to do the research. Companies like Coca-Cola, Johnson and Johnson, Procter and Gamble. They won't set the world on fire but they've raised their payouts every year for decades. You're not getting rich but you're getting reliability.

Warren would probably say just buy the whole index and stop overthinking it. He's not wrong for most people. But retirees have a different problem than a 29-year-old who's just dollar-cost averaging into VOO every two weeks. When you're actually living off the money, cash flow feels different. The psychology matters. Watching your yield shrink even when your account balance is growing can make you do stupid things.

These yields are rough though. If you're in retirement and feeling squeezed, the answer isn't to abandon stocks and pile into CDs or bonds at the first sign of trouble. It's to get clear on your actual number. How much do you need each month to cover your life? Start there. Work backward. Maybe that means a mix of index funds, a few dividend growers, some cash reserves, and yes maybe a CD ladder if rates are decent.

The worst thing you can do is panic and restructure everything because the yield on the index changed. Your strategy should be built around your life, not around a number on a screen.

I'll keep buying my index funds. But I'm also watching this because in 30 years, if yields are still this low, I'll be the retiree figuring this out too.