1. Compania de Minas Buenaventura
SAA, US BVN NYSE Report created on 5/25/12
Current Rating Last Close Price Rating Reiterated on 5/25/12 Rating Accuracy
Overview $38.49 REDUCE Rating History & Rating Accuracy ?
31.3%
About the Current Rating This team has changed its rating for BVN 16 times over the past 20 months. The direction for each team rating was correct for 5 of the 16 ratings at
the end of each rating period, resulting in a rating accuracy of 31.3% and a TTM rating accuracy of 25.0%.
Downgraded 4 Days 4.2%
Reduce
Reduce
Reduce
Reduce
Reduce
Reduce
Reduce
Hold
Hold
Hold
Hold
Hold
Hold
Hold
at Current % Change since
Ratings
from Hold
Rating Current Rating Issued
Team Member's Rating Information CORRECT RATINGS
Accuracy
Rating Upgrade/ Rating
Date Downgrade Rating Reiterated INCORRECT RATINGS
Ford Equity Research 5/09/12 Buy 5/16/12
Jaywalk 5/02/12 Buy 5/21/12 $60
The Street.com 8/20/09 Buy 5/20/12
Market Edge 5/21/12 Avoid 55
ResearchTeam 5/21/12 Reduce 5/25/12
50 S&P 500 TR
45
ResearchTeam Rating Performance (%) ?
Performance of the 0% 40
ResearchTeam rating
is calculated as if this
stock was purchased BVN
35
when the team had $38.49
an Accumulate or -20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16
15
Hold rating, and sold OCT JAN APR JUL OCT JAN APR
short when the team 2010 2011 2012
had a Reduce rating.
-40 BVN Over Rating Period
Upgrade or Price ($) on # of Days at Rating Total % Change Underperform/
Date of Rating Rating Downgrade Rating Date This Rating Accuracy Return in Benchmark Outperform Index
16 5/21/12 Reduce 36.93 4 Incorrect 4.2 0.0 Outperform
-60 15 5/14/12 Hold 35.65 7 Correct 3.6 -1.0 Outperform
Since 14 5/09/12 Accumulate 38.65 5 Incorrect -7.8 -2.0 Underperform
1 Month 3 Month 1 Year 1/1/2008 13 4/16/12 Hold 41.30 23 Incorrect -6.4 -2.2 Underperform
ResearchTeam for BVN -13.4 -18.1 -30.3 -54.4 12 3/26/12 Reduce 40.02 21 Incorrect 4.2 -1.4 Outperform
Accumulate Ratings -7.8 -7.8 -7.8 -7.8 11 1/30/12 Hold 42.90 56 Incorrect -6.7 8.0 Underperform
Hold Ratings -6.1 -7.3 -13.5 -8.5 10 1/09/12 Reduce 40.23 21 Incorrect 6.6 1.6 Outperform
Reduce Ratings -- -4.2 -12.6 -46.0
9 12/12/11 Hold 37.21 28 Correct 8.1 5.6 Outperform
BVN -13.4 -10.9 -10.2 23.3
8 10/24/11 Reduce 41.86 49 Correct -10.6 0.1 Underperform
S&P 500 Total Return Index -5.8 -4.3 -0.7 -2.8
7 7/25/11 Hold 42.55 91 Incorrect -1.6 -7.2 Outperform
? Help Click here to see the report disclosures Ratings History table continues on following page
© 2012 Markit On Demand, Inc. Page 1

2. Compania de Minas Buenaventura
SAA, US BVN NYSE Report created on 5/25/12
Rating Accuracy
Rating History & Rating Accuracy 31.3%
BVN Over Rating Period
Upgrade or Price ($) on # of Days at Rating Total % Change Underperform/
Date of Rating Rating Downgrade Rating Date This Rating Accuracy Return in Benchmark Outperform Index
6 6/13/11 Reduce 37.60 42 Incorrect 13.2 3.6 Outperform
5 5/31/11 Hold 41.17 13 Incorrect -8.7 -2.0 Underperform
4 4/18/11 Reduce 39.47 43 Incorrect 4.3 0.4 Outperform
3 2/22/11 Hold 46.17 55 Incorrect -13.9 0.7 Underperform
2 12/20/10 Reduce 48.54 64 Correct -4.9 4.5 Underperform
1 9/22/10 Hold 41.76 89 Correct 16.6 12.1 Outperform
© 2012 Markit On Demand, Inc. Page 2

3. About Us ResearchTeam Methodology
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STEP 1 STEP 2
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Jaywalk of each ResearchTeam strengths and apply them in
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solutions. ResearchTeam ratings
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© 2012 Markit On Demand, Inc. Page 3