David Nimietz, BMO, Chicago; David Hecht, TD Securities, Simon Binder, ITG, Peggy Bowie, CSTA, Doug Clarke, ITG, Jeff Foster, TSX, Emily Choi, TMX, all Toronto.
Joy Rosenstein, Fidessa, Jim Hyde, NYSE Options, and Joe Sellitto, Susquehanna. Not pictured: Bala Cywyd.
Michael Thompson of William Blair; John Barone of Cheevers & Co.; and Earl Manns of Blaylock Robert Vann LLC.
James Bibbings of Turnkey Trading, Tres Knippa of Kenai Capital, Jeff Kilburg of KKM Financial, and Scott Martins of United Advisors, all Chicago.
Ryan Kwiatkowski of Intl FC Stone, Orlando; Doreen McBride, guest, Jill Gracia of Oakridge Investments, Chicago; and Charlie McBride of JonesTrading, Heathrow.
Peter Grace, Nasdaq, New York; JJ Allingham, KCG, Jersey City; Drew Kirchman, Jane Street, New York.
Felix Zayas, Chicago, John Lassen, Ft. Worth, both TD Ameritrade; Mark McDermott, Canaccord Genuity, Boston; Bora Sulton, Canaccord Genuity, New York.
Stacey Cunningham, NYSE, Bernie McDevitt, Cheevers & Co., Tim Brennan, NYSE, Todd Rich, ICE, all Chicago.
Bernard McDevitt, Cheevers & Co., Meredith Jones, Rothstein
