Tagged: rogue algorithms

Exchanges Depend on Arbitrage

What if some mathematical calculations in the market are just there to get a reaction?

Traders have not to my knowledge named them “Charlie Sheen.” But alert reader Walt Schuplak at the Market Intelligence Group in New York sent an item about rogue algorithms. Our friend Joe Saluzzi at Themis Trading wrote on it yesterday.

Joe explains that certain trading practices create arbitrage opportunity. Profiting from divergence isn’t bad of itself, Joe notes. But if the chance to profit is fostered where divergence could not or would not occur on its own, it raises fundamental questions.

Bloomberg writer Nina Mehta wrote today about the Australian government’s initial rejection of the Singapore Exchange’s effort to buy the Oz stock market. Singapore is a shareholder-owned exchange. The Deutsche Bourse is public. Same with the InterContinental Exchange, throwing in with the Nasdaq on a bid for the NYSE, both of which are public too. The London and Toronto markets are run by public companies. BATS may IPO. (more…)