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The Dow closed at 15,177.54, down 0.5% from Monday.
That ended the benchmark's longest winning streak for any weekday since 1900, Ryan Detrick, chief technical analysts at Schaeffer's Investment Research told CNN Money. The old record of 13 was a three-way tie between Monday, Wednesday and Friday.
Furthermore, not including today, the lion's share of the Dow's 16.4% gains year-to-date have come on Tuesdays. The index racked up 1,518 points during the 21 Tuesdays the market has been open for trading this year, accounting for 71% of the Dow's record 2013 gains.
The only down Tuesday until today was Jan. 8.
While a number of theories explain the Tuesday win streak, here's one taking the blame for today's reversal: the Hindenburg Omen.
Named after the Hindenburg disaster, the omen is a technical analysis pattern that is said to portend a stock market crash.
The phenomenon occurs, when under normal conditions, a number of stocks may either set new annual highs or new annual lows, but not both at the same time. When these market breadth indicators occur twice within 36 days of each other, a market pullback could in the following 40 days.
These indicators were hit April 15 and May 29.
The last confirmed omen was in October 2007, according to Bloomberg. We all know what happened next…
Of course, there's plenty of criticism behind the HO – but just the mention of it could have been enough to spook investors away from a 21st Tuesday win.
Tuesday Win Streak 2013
Tuesday's consecutive streak of gains this year began Jan. 15. Since then, the Dow has added 1,902 points of which 1573 points, or 83%, have come on Tuesdays, research firm Bespoke Investment Group found.
Mondays have fared far worse. The Dow has shed a total of 461.9 points on Mondays, despite a bevy of mergers and acquisitions announced on the first day of the week.
While Wednesdays, Thursdays and Fridays have also been up days, none have enjoyed gains as big as the stellar Tuesday win streak.
This year's showing is not an exception or a strange quick of the calendar. According to the Stock Trader's Almanac, Tuesdays have generated the greatest gains of the week over the past 11 years.
What is it about Tuesdays that lends the second day of the week to such striking gains?