I spent most of this morning perusing the National Retail Federation’s latest monthly sales report. It’s not exactly light reading – give me a Clive Cussler novel any day. Still, this spending barometer reveals quite a bit about the general state of the economy and carries broad implications that ripple far beyond the retail sector.

The headline figure showed a healthy 0.6% uptick from September to October. That might sound tepid. But in a $30 trillion economy, even fractions of a percent equate to billions of incremental dollars going into shopping carts and virtual cash registers. And this is just a sequential comparison from one month to the next. On a year-over-year basis, shoppers spent about 5.0% more than the total from October 2024.

Whereas the U.S. Commerce Department utilizes surveys to gauge consumer spending patterns, the NRF relies on actual credit and debit card transactions. Ordinarily, I evaluate both reports for a more comprehensive look, but Commerce Department data is still lagging from the lengthy government shutdown.

In any case, the NRF findings are illuminating.

Furniture is apparently still a tough sell right now, with shoppers holding off on big-ticket durable goods. Garden and building supplies are also trending lower, a slump reflected in the falling share prices of Lowe’s (NYSE: LOW) and Home Depot (NYSE: HD). You’ll notice that both these categories are linked to home sales and new residential construction.

But those are the two outliers. Every other retail category is in positive territory, including electronics (up 6.6%), sporting goods/hobbies (up 7.2%), clothing (up 7.9%) and digital books/video games (up 22.4%), just to name a few.

While anecdotal reports suggest that some households are sticking to groceries and other essentials, there is still plenty of disposable income being funneled into discretionary purchases. In fact, the NRF tabulates a year-to-date spending increase of 5.1% through the end of October.

Of course, it’s November and December that are make-or-break for so many stores.

The holiday rush has now officially kicked off, and many consumer-facing businesses will generate roughly one-fifth of their annual sales between Thanksgiving and Christmas. The NRF is projecting U.S. spending to rise about 4% over this pivotal stretch – topping the $1 trillion mark for the first time ever.

The early results look good, with online shoppers dropping a record-breaking $11.8 billion on Black Friday and even more on Cyber Monday. According to Adobe, total digital sales over the five-day period rose by nearly 8% to reach $44 billion.

Keep in mind, that doesn’t include physical brick-and-mortar stores. While mall and strip center foot traffic isn’t what it once was, the NRF estimates that 130 million people braved the crowds for in-store Black Friday promotions, a 3% uptick. Despite flattish volume, per-capita spending across all channels rose to $337 over the long weekend.

As you might imagine, Mastercard (NYSE: MA) had some interesting front-row observations to share, noting that many of its cardholders have been shopping in the fashion and jewelry departments. Shopify (Nasdaq: SHOP), whose software platform powers hundreds of global ecommerce brands, saw its merchants generate peak sales of $5+ million per minute.

Taken together, these snapshots paint a fairly clear mosaic of consumer optimism. Pocketbooks remain wide open, despite stubborn inflation, labor market unease and other macro headwinds. I’ll be keeping an eye on rising debt (and utility bill) delinquencies. And the proliferation of buy-now-pay-later arrangements is telling.

For now, though, the near-term outlook for the iShares U.S. Consumer Discretionary ETF (NYSE: IYC) has brightened. And considering they account for 70% of GDP, you can understand why individual shoppers are considered the locomotives of the economy.