BLACKROCK INCOME OPP TRUST I

CUSIP: 092475102 Class: COM

Cambridge Investment Research Advisors, Inc.'s Holding History (CIK: 0001419186)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014
Shares 11,213 Value ($000) $116 Avg Close — Range —
Q4 2013
Shares 12,555 Value ($000) $122 Avg Close — Range —
Q3 2013
Shares 15,640 Value ($000) $155 Avg Close — Range —
Q2 2013
Shares 26,278 Value ($000) $264 Avg Close — Range —