The Nigerian Stock Exchange released the list of top ten Brokers performance for the month of May, 2017 (Start Date 01/05/2017 through End Date 31/05/2017)
| Rank | Broker | Description | Quantity | % of Volume |
| 1 | SISB | STANBIC IBTC STOCKBROKERS LIMITED | 2,334,301,755 | 11.99 |
| 2 | CSL | CSL STOCKBROKERS LIMITED | 1,579,248,410 | 8.11 |
| 3 | RSNL | RENCAP SECURITIES (NIG) LIMITED | 1,523,673,085 | 7.83 |
| 4 | CSSL | CARDINALSTONE SECURITIES LIMITED | 881,542,265 | 4.53 |
| 5 | ARMS | A.R.M SECURITIES LIMITED – BRD | 877,465,120 | 4.51 |
| 6 | FBNS | FBN SECURITIES LIMITED | 762,435,523 | 3.92 |
| 7 | MCSE | MORGAN CAPITAL SECURITIES LIMITED | 697,612,778 | 3.58 |
| 8 | RAML | REGENCY ASSETS MANAGEMENT LIMITED | 537,039,230 | 2.76 |
| 9 | MERI | MERISTEM STOCKBROKERS LIMITED | 486,640,955 | 2.50 |
| 10 | READ | READINGS INVESTMENTS LIMITED – BDR | 480,438,982 | 2.47 |
| Top 10 Total Volume | 10,160,398,103 | 52.20 | ||
NOTE: The top 10 Stockbrokers are responsible for 52.20% of the total volume between 01/05/2017 and 31/05/2017
| Rank | Broker | Description | Value | % Value |
| 1 | RSNL | RENCAP SECURITIES (NIG) LIMITED | 34,045,865,292.53 | 16.56 |
| 2 | SISB | STANBIC IBTC STOCKBROKERS LIMITED | 33,045,491,747.60 | 16.07 |
| 3 | CSL | CSL STOCKBROKERS LIMITED | 16,476,771,163.91 | 8.01 |
| 4 | ARMS | A.R.M SECURITIES LIMITED – BRD | 13,154,077,622.85 | 6.40 |
| 5 | EFCP | EFCP LIMITED | 11,394,632,372.00 | 5.54 |
| 6 | FBNS | FBN SECURITIES LIMITED | 8,934,411,014.92 | 4.34 |
| 7 | CSSL | CARDINALSTONE SECURITIES LIMITED | 6,108,814,243.83 | 2.97 |
| 8 | ZISL | ZENITH SECURITIES LIMITED | 5,703,175,064.08 | 2.77 |
| 9 | CHDS | CHAPEL HILL DENHAM SECURITIES LTD – BRD | 5,468,305,498.84 | 2.66 |
| 10 | IONE | INVESTMENT ONE STOCKBROKERS INTL LTD-BRD | 4,994,070,529.56 | 2.43 |
| Top 10 Total Value | 139,325,614,550.12 | 67.75 | ||
NOTE: The top 10 Stockbrokers are responsible for 67.75% of the total value between 01/05/2017 and 31/05/2017