of a 9.3%. 2010s During the first half of the 2010s decade, aided by the Federal Reserve's loose monetary policy including quantitative easing, the Dow made a notable rally attempt. This was despite significant volatility due to growing global concerns such as the 2010 European sovereign debt crisis, the Dubai World 2009 debt standstill, and the United States debt-ceiling crisis of 2011. On May 6, 2010, the Dow lost 9.2% intra-day and regained nearly all of it within a single hour. This event, which became known as the 2010 Flash Crash, sparked new regulations to prevent future incidents. Six years after its previous high in 2007, the Dow finally closed at a new record high on March 5, 2013. It continued rising for the next several years past 17,000 points until a brief 2015–16 stock market selloff in the second half of 2015. It then picked up again early 2016 and climbed past 25,000 points on January 4, 2018. On November 9, 2016, the day after Donald Trump's victory over Hillary Clinton in the U.S. presidential election, the index soared, coming within roughly 25 points of its all-time intraday high to that point. Volatility returned in 2018 when the Dow fell nearly 20%. By early January 2019, the index had quickly rallied more than 10% from its Christmas Eve low. Overall in the 2010s decade, the Dow increased from 10,428.05 to 28,538.44 for a substantial gain of 174%. 2020s Despite the emerging COVID-19 pandemic, the Dow continued its bull run from the previous decade before peaking at 29,551.42 on February 12, 2020 (29,568.57 intraday on the same day). The index slowly retreated for the remainder of the week and into the next week, before coronavirus fears and an oil price war between Saudi Arabia and Russia sent the index into a tailspin, recording several days of losses (and gains) of at least 1,000 points, a typical symptom of a bear market as previously seen in October 2008 during the financial crisis. Volatility rose high enough to trigger multiple 15-minute trading halts. In the first quarter of 2020, the DJIA fell 23%, its worst quarter since 1987. The market recovered in the third quarter, returning to 28,837.52 on October 12, 2020, and peaked momentarily at a new all-time high of 29,675.25 on November 9, 2020, at 14:00 ET, following that day's announcement of the success of the Pfizer–BioNTech COVID-19 vaccine in