Global stock indexes mostly climbed on Wednesday, snapping a three-day losing streak, while Treasury yields eased off their recent highs and the yen jumped against the dollar. You can read the full wrapup over at Reuters.

I'll tell you what a day like this means to me at this point in my life: almost nothing, and I mean that in the most useful way possible. I've watched forty years of these daily wrapups, and the pattern never changes. Three red days and the financial press starts writing like the floor is giving way. One green day and suddenly the mood shifts. The stocks themselves haven't changed their long-term prospects in either direction. Only the narration has.

Still, the pieces of this particular day are worth a moment, because they connect to something I wrote about recently. I've been saying that bond yields have become the stock market's real fear gauge, and Wednesday fit that frame pretty neatly. Yields eased, and equities breathed. That relationship has tightened considerably over the past couple of years. When the ten-year Treasury climbs, stocks get expensive by comparison and the market's risk appetite shrinks. When yields relax, money flows back toward risk. There's no mystery in it, just arithmetic and temperament.

The yen strengthening against the dollar is the other piece worth noting, mostly because currency moves like this tend to unsettle people who own international funds and then check them too often. If you hold a broad international index, a stronger yen boosts the value of your Japanese holdings on paper. A weaker yen trims it. Over a quarter or a year it matters. Over a day it's noise with a headline attached.

The question I'd ask anyone reading a wrapup like this: did your plan change today? If you own a diversified portfolio and you're contributing regularly, the answer should be no. A bounce after three down days doesn't validate your strategy any more than the three down days invalidated it. What validates it is time, and most people don't want to hear that, because time is the one input you can't speed up.

Let me do the small bit of math I always do, because it calms me down and it might calm you down too. Say you're putting $500 a month into a total market index fund. Over three down days your existing shares lost some value, say two percent. On a $200,000 portfolio that's $4,000 on paper. Uncomfortable to look at. But your $500 buy this month now purchases shares at that two percent discount, and if the market does what it has historically done over long stretches, roughly seven to ten percent annually with plenty of turbulence along the way, those discounted shares compound right alongside everything else. Wednesday's bounce probably lifted your paper value back by a chunk of that loss. Neither day required a single action from you.

What I'd watch instead of the daily scorecard is the trend in yields, because that's the gear the whole machine turns on. If the ten-year keeps drifting lower over the coming months, stocks have more room to run even at today's rich valuations, and I've been on record saying the S&P 500 is priced for perfection. If yields resume climbing, expect more choppy stretches like the three days we just sat through. Either way, the response for a long-term investor is the same boring answer I always give: keep buying, keep the costs low, rebalance on a schedule rather than on a feeling.

Three down days followed by one up day isn't a story. It's a Tuesday through Friday in any given year. The story is what you own and whether you can hold it without flinching.

As always, I'm sharing my perspective, not professional financial advice. Talk to a qualified advisor about your own situation.