At the same time, regulators change trading «ticks,» or the increments in which stocks can trade, from the
current decimalization to nickel sizes, eliminating the benefits that high - frequency traders enjoy from capitalizing on moves of pennies.
Dramatic cuts in brokerage commissions,
the decimalization of share prices, and narrower bid / ask spreads, along with reduced capital gains taxes are all examples, Bogle says.
On February 5, 2013 the SEC hosted
a Decimalization Roundtable to examine the impact of decimal - based stock prices on small and mid-sized companies.
Some say it was
decimalization, when share prices were no longer priced in fractions and brokers lost profits; others point to overregulation in the form of the Sarbanes - Oxley Act.
The Federal Reserve Bank of Chicago measured a 30 % drop in average bid — ask spreads from two weeks prior to two weeks after the conversion to
decimalization (Furfine, 2003).
The authors write that SarbOx was «a bit of a red herring» because «[online] brokerage and
decimalization were significantly more damaging to the IPO market.»