Quote from Anaconda:
Get it through your thick skulls. Market Makers would not be subject to such tax. The liquidity will still be there. The market making entities will have some fat profit margins to enjoy.
The market will simply resemble one that existed 2-3 decades ago, where 90%+ of the people could not trade on a short timeframe due to lack of technology and high commissions.
Please stop acting like most of the armies of daytraders & HFT hedge funds would be missed the slightest bit if they were gone. Most of the volume nowdays noise. Seriously, think back to 1980s when the volumes were a fraction of what they are today. Trading was still quite active, with plenty of speculators to provide price discovery, along with mutual funds, pensions funds and small retail guys doing some swing trading & investing. Companies still went IPO.
If this tax actually went through without any exemptions, you will have much more serious issues to worry about.