Hi there Gerth-ga,
Anonymous trading refers to:
"Visible bids and offers on the market without the identity of the
bidder and seller being revealed."
as defined by Investopia.com
Anonymous trading is usually done by high profile investors, primarily
to execute transactions without the scrutiny and speculation of the
However, recently, anonymous trading is becoming more and more
accessible due to online brokers that allow direct access to such high
Anonymous trading is generally done either through having an
alternative identifier that keeps all other information about you
hidden (ie a Market Participant Identifier MPID) or having a service
provider represent your order without exposing any personal details.
You cannot hide your information from the brokerage but you can remain
anonymous to the rest of the market.
All NYSE®, AMEX®, PCX® and OTC listed stocks
For all NYSE®, AMEX®, PCX® and OTC listed stocks, you can choose a
direct access broker that route orders through ArcaEx to place
A list of the brokers you can use to directly access ArcaEx is
available on the following page (a great majority of them are online
brokers as you requested):
ArcaEdge allows anonymous order representation for up to 999,900 shares.
For more information about ArcaEx, please refer to:
For a complete list of eligible stocks, please refer to this page:
For NASDAQ, their new platform SuperMontage has a fully anonymous
trading feature which was recently approved by the SEC. The full
anonymity feature is expected to be available for the entire NASDAQ
National Market and NASDAQ Small Cap Market by Monday, October 6.
For the latest information on how full anonymity works and its
benefits, please refer to this fact sheet:
Your broker can connect to the NASDAQ SuperMontage in a variety of ways:
"FIX protocol connecting through:
A direct connection to NASDAQ on a FIX circuit.
A direct connection to NASDAQ on an existing CTCI circuit.
A third-party private network, or Extranet. (NASDAQ currently
supports SAVVIS, Radianz and TNS.)
A Service Bureau that is connected to NASDAQ via FIX.
Computer-to-computer interface (CTCI) ? supports only non-directed orders
Service delivery platform (SDP), connecting to:
Application programming interface (API)
NASDAQ Workstation II® presentation device (PD)
Most service bureaus offer SuperMontage functionality"
I hope you the information was helpful; if you would like
clarification on any part of the answer, please let me know and I will
do my best to keep working with you until you are satisfied.