Securities Exchange Act 1934 Section 31

• (b) Exchange-traded securities
  
  Subject to subsection (j), each national securities exchange shall pay to the Commission a fee at a rate equal to $ 15 per $ 1,000,000 of the aggregate dollar amount of sales of securities (other than bonds, debentures, other evidences of indebtedness, security futures products, and options on securities indexes (excluding a narrow-based security index)) transacted on such national securities exchange.
  
  
• (c) Off-exchange trades of exchange registered and last-sale-reported securities
  
  Subject to subsection (j), each national securities association shall pay to the Commission a fee at a rate equal to $ 15 per $ 1,000,000 of the aggregate dollar amount of sales transacted by or through any member of such association otherwise than on a national securities exchange of securities (other than bonds, debentures, other evidences of indebtedness, security futures products, and options on securities indexes (excluding a narrow-based security index)) registered on a national securities exchange or subject to prompt last sale reporting pursuant to the rules of the Commission or a registered national securities association.
  
  
• (d) Assessments on security futures transactions
  
  Each national securities exchange and national securities association shall pay to the Commission an assessment equal to $0.009 for each round turn transaction (treated as including one purchase and one sale of a contract of sale for future delivery) on a security future traded on such national securities exchange or by or through any member of such association otherwise than on a national securities exchange, except that for fiscal year 2007 and each succeeding fiscal year such assessment shall be equal to $ 0.0042 for each such transaction..