25% of the $9B in warehouses being built in the United States are due to Amazon, according to a report from IIR. A cool $2 billion dollars (cue Dr. Evil laugh)

A few other stats in the report:

* Census Bureau says that eCommerce is growing overall 7.4% year over year based on Q3 numbers.

* eCommerce accounted for 16.2% of total retail sales in Q3 also.

And these are the scaled back Amazon plans! Recall Amazon has deferred or canceled some construction, and is through doubling its fulfillment network as of early 2023. This doesn't mean that growth has halted however.

Furthermore, judging from the performance of the inbound and middle mile of Amazon's network during Q4, Amazon may have a lot more optimization to do. Don't worry too much for them, however -- Amazon tends to figure this kind of stuff out in the long-term.

At this point, Amazon is still investing in all layers of its network. As D'Angelo Barksdale says in The Wire, "The king stay the king." Something about this statement rings true in this new data, and to this observer Amazon does not seem likely to relinquish this position as king anytime soon.