Weeden & Co., L.P.

(3/3) Ave trade size for Tier 1, Tier 2 & OTC securities in Apr 4-8 wk: 551 shares, 581 shares and 46,361 shares respectively @FINRA_News

(2/3) As with Tier 1, Citadel and KCG are most-active BDs for Tier 2 and OTC securities @FINRA_News

(1/3) First tranche of @FINRA_News volume data for non-ATS OTC trades in Tier 2 and OTC securities is out (data is for April 4-8 week)

(4/4) Non-ATS OTC average trade size is 551 shares, reflects mix of small wholesaler trades and block-sized upstairs crosses

(3/4) Top 10 broker-dealers by non-ATS OTC volume combine for 79% market share

(2/4) Wholesalers Citadel and KCG dominate non-ATS OTC market with combined 40% market share by volume

(1/4) First tranche of @FINRA_News non-ATS OTC data is out – Tier 1 securities only, week of April 4-8

We wrote about IEX – how it works, the types of liquidity it attracts, and how it fits into the NMS – full report at bit.ly/1VggAZJ

(3/3) Crossfinder decline sees @IEX become second-largest ATS by Tier 1 volume

(2/3) Amazingly Barclays LX Tier 1 mkt share actually increased 10% post-SEC/NYAG settlement news vs previous 4 wks

(1/3) First tranche of @FINRA_News data following news of SEC/NYAG settlement shows Crossfinder Tier 1 mkt share down 20% vs previous 4 wks

(4/4) Tier 1 average trade size for block ATSs:

(3/4) Tier 1 market share for block ATSs:

(2/4) Luminex Tier 1 ATS mkt share 7 bps vs 63 bps for @StateStreet BlockCross and 89 bps for @Liquidnet Negotiation

(1/4) Luminex traded 3.1 million Tier 1 shares with 36,900-share ave trade size in December 14-18 week per FINRA