New York City has the highest population density of any US city with 27,000 people per square mile. Now that is a fun fact. For stock investors, numbers can be fun too, especially when markets are trading at or near all-time highs. The Dow closed above 27,000 for the first time this week and Wall Street loves round numbers. Not to be outdone, the S&P 500 traded above another round number, 3000, this week as well. To put it into perspective, a little more than ten years ago, at the Great Recession bottom on March 9th, 2009, the Dow and S&P were trading at 6,547 and 676 respectively. Cheers to the bull while it lasts!