The last full week of October was a box full of surprises.

First, U.S. economic growth exceeded expectations. The devastation wrought by Hurricanes Harvey, Irma, and Maria was widely expected to stifle U.S. quarterly growth, according to NPR. The Atlanta Federal Reserve predicted 2.5 percent gross domestic product (GDP)* growth for third quarter, down from 3.1 percent the previous quarter. Instead, U.S. GDP grew by 3.0 percent.

In fact, productivity has been flourishing around the globe. The Financial Times reported:

"…activity has again broken upwards in recent weeks, with growth in the advanced economies close to the highest rates seen since before the Great Financial Crash (GFC), apart from in the immediate recovery phase in 2010. Furthermore, world trade volume has now joined the recovery, and corporate expenditure on jobs and machinery is picking up. Overall, it seems that some of the symptoms of "secular stagnation" are beginning to fade…"

Tech companies were a sensation last week, too. Several of the biggest firms beat earnings estimates by wide margins, pushing share values higher, reported CNBC. Despite tech's strong performance, the Standard & Poor's 500 Index (S&P 500) has delivered third quarter earnings growth of 4.7 percent with more than half of companies reporting.

Earnings are lower than they would have been without the hurricanes, according to FactSet. With insurance industry earnings excluded, the S&P 500's earnings growth pops from 4.7 percent to 7.4 percent.

The final surprise for the week was the doldrums. October is supposed to be the most volatile month of the year, according to Barron's. Instead, we've experienced the calmest October since 1928.

The S&P 500 and the NASDAQ both finished last week at new all-time highs.

*GDP is the value of all goods and services produced in a region.