Involvement by Interactive Brokers and Susquehanna boosts finance-related event contracts
Retail broker covers customers’ Berkshire Hathaway trades after exchange rebuffs compensation claim
Perella Weinberg Partners and Interactive Brokers among 10 firms caught up in latest enforcement action
Two years on from the frenzy, small investors grab largest-ever share of US market activity
Brokerages fear a market downturn could extinguish new wave of interest
Robinhood says limited trading to resume on Friday after rebukes from users and politicians
Robinhood and Interactive Brokers suffer latest in a series of glitches
Retail broker says it is ‘appropriate to start controlling leverage’
Shares in brokerage firm drop overnight after it discloses payments to clearing houses
Interactive Brokers will transfer from Nasdaq in October
A fifth of desktop and mobile platforms store passwords unencrypted
Suspicious trades slipped through monitoring at Interactive Brokers’ UK arm
London launch comes despite warnings over large losses by US regulator
CME and Cboe listings have raised concerns among regulators and brokers
U-turn by Interactive Brokers could shift trading dynamics for soaring cryptocurrency
Fund hopes to reinvigorate derivatives business founded by Thomas Peterffy
SEC claims inside information led to $29m in quick profits on $3.8bn Comcast deal
Interactive Brokers founder Thomas Peterffy warns costs need to be cut
US stocks rally as consumer confidence hits decade high
Rule to protect small investors violated
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