By SCOTT PATTERSON and JENNY STRASBURG
Haim Bodek was a Wall Street insider at Goldman Sachs and UBS before launching his own [high-frequency] trading firm.
Mr. Bodek approached the Securities and Exchange Commission last year alleging that stock exchanges, in a race for more revenue, had worked with rapid-fire trading firms to give them an unfair edge over everyday investors.
He became convinced exchanges were providing such an edge after he says he was offered one himself when he ran a high-speed trading firm—a way to place orders that can be filled ahead of others placed earlier. The key: a kind of order called “Hide Not Slide”………
via For Superfast Stock Traders, a Way to Jump Ahead in Line – WSJ.com.

Colin Twiggs is a former investment banker with almost 40 years of experience in financial markets. He co-founded Incredible Charts and writes the popular Trading Diary and Patient Investor newsletters.
Using a top-down approach, Colin identifies key macro trends in the global economy before evaluating selected opportunities using a combination of fundamental and technical analysis.
Focusing on interest rates and financial market liquidity as primary drivers of the economic cycle, he warned of the 2008/2009 and 2020 bear markets well ahead of actual events.
He founded PVT Capital (AFSL No. 546090) in May 2023, which offers investment strategy and advice to wholesale clients.