Musk derided the SEC as the "Shortseller Enrichment Commission" before snidely praising it for "doing incredible work".
The SEC's allegation of fraud against Mr Musk related to tweets he posted in August in which he said he was considering taking electronic vehicle maker Tesla off the stock market and into private ownership.
Musk has often previously vilified short sellers, who bet that the price of a stock will go down, blaming them for spreading bad press and negative analysis on Tesla's prospects.
The tweets may imperil a deal struck with the SEC on Saturday - which isn't final - that bars Musk from serving as chairman of the carmaker for three years as punishment for problematic posts he sent about taking Tesla private.
The SEC has responded by denying any plans for a name change, but won't be drawn on the content of the Tweet.
Tesla shares, which fell more than 4 percent Thursday, retreated another 2 percent in after-hours trading.
BlackRock declined to comment on Musk's tweet.
Rupee plunges to fresh record low of 73.77 against dollar
Consistent dollar demand from importers, mainly oil refiners, following higher crude oil prices, kept the rupee under pressure. The Indian rupee is the worst performing Asian currency this year, having lost more than 13 per cent.
The settlement mandated that the company must implement "mandatory procedures and controls to oversee all of Elon Musk's communications regarding the Company made in any format".
Tesla was not charged with fraud.
Musk's sarcastic tweet could cause Nathan to reject the settlement if it gives her reason to believe that he "has no intention or ability to change his conduct", said Erik Gordon, a business professor at the University of MI.
Getting back to today's story, The New York Times says Musk demand that Tesla fight the SEC complaint and company's board "publicly extol his integrity".
Musk, 47, has rarely seemed hesitant to make provocative statements to his more than 22 million followers on Twitter.
Musk is a long time critic of what he believes is a bias towards Short Sellers (ask an accountant).
The SEC settlement still needs court approval. "This is just a hoop to be jumped through", he said.
Arsenal are on a seven-game winning streak at the moment in all competitions and are fifth in the league table on 15 points. The BBC reported that Arsenal were keen to offer the 27-year-old a four-year deal before pulling out.
Known as a hands-on royal, Catherine took a longer break after the birth of Prince Louis as she also wrangled her two toddlers. The Duchess' visit is to learn about how the school helps to improve kids' emotional and physical well being.
But White House spokesman Raj Shah said: "What critics want is a never-ending fishing expedition into high school drinking". Police rounded the protesters up in a Senate office building after they sat down and refused to budge.
Versus a very unpredictable and protectionist US administration, I think Canada did as well as it could". Besides, the US President threatened to go ahead with a revamped NAFTA, with or without Canada .
The WEA is used to warn people about severe weather, missing children ( AMBER alerts ), and other critical events via cell phone. Has WEA and EAS Been Tested Before? The plaintiffs said the alert system fails to give people the chance to opt out.
Kavanaugh has denied the claims. "This woman had no clue what was going on, and yet she made the most awful charges", Trump said. Ford's attorneys said in a statement that they were "profoundly disappointed" in the probe.
Kavanaugh, who was not arrested, was attending Yale University. "I will say it again, we drank in college". "He drank heavily. The report said 21-year-old Dom Cozzolino told police that Mr Kavanaugh threw ice at him for "some unknown reason".
Relations between the United States and China have deteriorated recently over an escalating trade dispute and military issues. In past years, military ties have been somewhat stable but a series of events this year have roiled the waters.
Melania Trump's visits will promote "education, healthcare, some conservation and tourism", the statement continued. Department of State provided more than $8 billion in assistance to 47 countries in sub-Saharan Africa in 2015.
Additionally, with Google Sign-In users can use their voice to login and link accounts on smart speakers with the Assistant. Google, in a blog post , mentioned all the changes that have arrived as a part of the Google Assistant makeover.
Nokia 7.1 launched: Price and specifications
The True Wireless earbuds offer 3.5 hours of play time, are waterproof, and can get three charges from the wireless charging case. The Nokia 7 .1 announcement has been updated with United States and Australian pricing and release date information.
Nairobi Roads With Tight Security Over Melania Trump's Visit
Trump is advocating for children's welfare as part of her "Be Best" campaign during her first worldwide solo tour as first lady. Later during a visit at the USA embassy in Malawi, the first lady called her visit to the school an "amazing experience".
Aston Villa preparing to sack Steve Bruce
The club added that Bruce's assistants Colin Calderwood, Steve Agnew, Stephen Clemence and Gary Walsh were also departing. An Aston Villa fan launched a cabbage at Steve Bruce as he watched his side throw away a 2-0 lead at Villa Park.
The Debate - UN Court Anti-Iran Ruling
National security adviser John Bolton made the same point at a White House press conference this afternoon. Iran's Foreign Ministry welcomed the ruling as a "clear sign" that "Iran is in the right".
Twitter reacts to Theresa May’s Dancing Queen moment
May's ABBA dancing moves quickly went viral, and the videos were shared on social media with added music - and commentary. Theresa May arrived on stage to the tune of ABBA's " Dancing Queen " today, and showed off her dance moves once again.
Federal government and Ontario spar over USMCA trade deal
The unprecedented attacks on America's closest ally left a bitter taste. "It has been shocking and disappointing and upsetting". Beijing responded by announcing tariffs of 5 percent to 10 percent on an additional $60 billion worth of USA imports.