def get_performance_report(self) -> PerformanceReport:
reports = GsReportApi.get_reports(
limit=1,
position_source_type='Portfolio',
position_source_id=self.id,
report_type='Portfolio Performance Analytics')
return PerformanceReport.from_target(reports[0]) if reports else None
def pnl(portfolio_id: str,
start_date: dt.date = None,
end_date: dt.date = None,
*,
source: str = None,
real_time: bool = False,
request_id: Optional[str] = None) -> pd.Series:
"""
Returns the PnL of a portfolio
:param portfolio_id: id of portfolio
:param start_date: start date for getting pnl
:param end_date: end date for getting pnl
:param source: name of function caller
:param real_time: whether to retrieve intraday data instead of EOD
:param request_id: server request id
:return: portfolio pnl values
"""
reports = GsPortfolioApi.get_reports(portfolio_id)
performance_report_id = ""
for report in reports:
if report.type == ReportType.Portfolio_Performance_Analytics:
performance_report_id = report.id
data = PerformanceReport.get_pnl(performance_report_id, start_date,
end_date)
df = pd.DataFrame.from_records(data)
df.set_index('date', inplace=True)
return _extract_series_from_df(df, QueryType.PNL, True)
def test_normalized_performance_short():
idx = pd.date_range('2020-01-02', freq='D', periods=3)
replace = Replacer()
expected = {"Short": pd.Series(data=[1, 1 / 2, 1 / 3], index=idx,
name='normalizedPerformance', dtype='float64'),
"Long": pd.Series(data=[1, 2, 3], index=idx,
name='normalizedPerformance', dtype='float64'),
None: pd.Series(data=[1, (2 + 1 / 2) / 2, (3 + 1 / 3) / 2], index=idx,
name='normalizedPerformance', dtype='float64')}
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports', Mock())
mock.return_value = [
Report.from_dict({'id': 'RP1', 'positionSourceType': 'Portfolio', 'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {'transactionCostModel': 'FIXED'}})]
# mock PerformanceReport.get_portfolio_constituents()
mock = replace('gs_quant.markets.report.PerformanceReport.get_portfolio_constituents', Mock())
mock.return_value = MarketDataResponseFrame(data=constituents_data_l_s, dtype="float64")
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
for k, v in expected.items():
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
actual = mr.normalized_performance('MP1', k)
assert all((actual.values - v.values) < 0.01)
replace.restore()
def get_performance_report(self) -> PerformanceReport:
reports = GsReportApi.get_reports(
limit=100,
position_source_type='Portfolio',
position_source_id=self.id,
report_type='Portfolio Performance Analytics')
if len(reports) == 0:
raise MqError('This portfolio has no performance report.')
return PerformanceReport.from_target(reports[0])
def test_normalized_performance_default_aum():
idx = pd.date_range('2020-01-02', freq='D', periods=3)
expected = pd.Series(data=[1, 1 / 0.8, 1 / 0.6],
index=idx,
name='normalizedPerformance',
dtype='float64')
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
df = MarketDataResponseFrame(data=ppa_data, dtype="float64")
replace = Replacer()
# mock GsPortfolioApi.get_reports()
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get_many_measures()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_many_measures',
Mock())
mock.return_value = df
# mock PerformanceReport.get_custom_aum()
mock = replace(
'gs_quant.api.gs.portfolios.GsPortfolioApi.get_custom_aum', Mock())
mock.return_value = aum
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
mock = replace(
'gs_quant.api.gs.portfolios.GsPortfolioApi.get_portfolio', Mock())
mock.return_value = Portfolio('USD', 'P1', id_='MP1')
actual = mr.normalized_performance('MP1', None)
assert all(actual.values == expected.values)
replace.restore()
def get_reports(self) -> List[Report]:
if self.positioned_entity_type == EntityType.PORTFOLIO:
reports_as_target = GsPortfolioApi.get_reports(portfolio_id=self.id)
report_objects = []
for report in reports_as_target:
if report.type == ReportType.Portfolio_Performance_Analytics:
report_objects.append(PerformanceReport.from_target(report))
elif report.type in [ReportType.Portfolio_Factor_Risk, ReportType.Asset_Factor_Risk]:
report_objects.append(FactorRiskReport.from_target(report))
else:
report_objects.append(Report.from_target(report))
return report_objects
raise NotImplementedError
def test_normalized_performance_no_custom_aum():
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
df = MarketDataResponseFrame(data=ppa_data, dtype="float64")
replace = Replacer()
# mock GsPortfolioApi.get_reports()
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get_many_measures()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_many_measures',
Mock())
mock.return_value = df
# mock PerformanceReport.get_portfolio_constituents()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_portfolio_constituents',
Mock())
mock.return_value = MarketDataResponseFrame(data=constituents_data,
dtype="float64")
# mock PerformanceReport.get_custom_aum()
mock = replace(
'gs_quant.api.gs.portfolios.GsPortfolioApi.get_custom_aum', Mock())
mock.return_value = pd.DataFrame({})
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
with pytest.raises(MqError):
mr.normalized_performance('MP1', 'Custom AUM')
replace.restore()
def get_reports(self) -> List[Report]:
"""
Get a list of all reports associated with the portfolio
:return: list of Report objects
"""
reports = []
reports_as_targets = GsPortfolioApi.get_reports(self.__portfolio_id)
for report_target in reports_as_targets:
if report_target.type in [
ReportType.Portfolio_Factor_Risk,
ReportType.Asset_Factor_Risk
]:
reports.append(FactorRiskReport.from_target(report_target))
if report_target.type == ReportType.Portfolio_Performance_Analytics:
reports.append(PerformanceReport.from_target(report_target))
return reports
def test_get_performance_report(mocker):
# mock GsSession
mocker.patch.object(GsSession.__class__,
'default_value',
return_value=GsSession.get(Environment.QA, 'client_id',
'secret'))
mocker.patch.object(GsSession.current,
'_get',
return_value=Report(
id='PPAID',
position_source_type=PositionSourceType.Portfolio,
position_source_id='PORTFOLIOID',
parameters=None,
type=ReportType.Portfolio_Performance_Analytics,
status=ReportStatus.done))
# run test
response = PerformanceReport.get('PPAID')
assert response.type == ReportType.Portfolio_Performance_Analytics
def test_financial_conditions_index():
data = {
'pnl': [101, 102, 103],
'date': ['2020-01-01', '2020-01-02', '2020-01-03']
}
idx = pd.date_range('2020-01-01', freq='D', periods=3)
df = MarketDataResponseFrame(data=data, index=idx)
df.dataset_ids = ('PNL', )
replace = Replacer()
# mock PerformanceReport.get_pnl()
mock = replace('gs_quant.markets.report.PerformanceReport.get_pnl', Mock())
mock.return_value = df
# mock GsPortfolioApi.get_reports()
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
actual = mp.portfolio_pnl('MP1')
assert actual.index.equals(idx)
assert all(actual.values == data['pnl'])
replace.restore()
def short_pnl(report_id: str, *, source: str = None,
real_time: bool = False, request_id: Optional[str] = None) -> pd.Series:
"""
PNL from short holdings
:param report_id: id of performance report
:param source: name of function caller
:param real_time: whether to retrieve intraday data instead of EOD
:param request_id: server request id
:return: portfolio short pnl
"""
start_date = DataContext.current.start_time.date()
end_date = DataContext.current.end_time.date()
performance_report = PerformanceReport.get(report_id)
constituent_data = performance_report.get_portfolio_constituents(
fields=['pnl', 'quantity'], start_date=start_date, end_date=end_date).set_index('date')
short_leg = constituent_data[constituent_data['quantity'] < 0]['pnl']
short_leg = short_leg.groupby(level=0).sum()
return pd.Series(short_leg, name="shortPnl")
def test_get_short_pnl():
idx = pd.date_range('2020-01-02', freq='D', periods=3)
replace = Replacer()
expected = pd.Series(data=[0, -2, -2],
index=idx,
name='shortPnl',
dtype='float64')
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get_portfolio_constituents()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_portfolio_constituents',
Mock())
mock.return_value = MarketDataResponseFrame(data=pnl_data_l_s)
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
actual = mr.short_pnl('MP1')
assert all(actual.values == expected.values)
replace.restore()
def test_get_long_pnl_empty():
replace = Replacer()
expected = pd.Series(dtype=float)
mock = replace('gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get_portfolio_constituents()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_portfolio_constituents',
Mock())
mock.return_value = MarketDataResponseFrame(data=constituents_data_s)
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get', Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
actual = mr.long_pnl('MP1')
assert all(actual.values == expected.values)
replace.restore()
def normalized_performance(report_id: str,
aum_source: str = None,
*,
source: str = None,
real_time: bool = False,
request_id: Optional[str] = None) -> pd.Series:
"""
Returns the Normalized Performance of a performance report based on AUM source
:param report_id: id of performance report
:param aum_source: source to normalize pnl from, default is the aum source on your portfolio,
if no aum source is set on your portfolio the default is gross
:param source: name of function caller
:param real_time: whether to retrieve intraday data instead of EOD
:param request_id: server request id
:return: portfolio normalized performance
**Usage**
Returns the normalized performance of the portfolio based on AUM source.
If :math:`aum_source` is "Custom AUM":
We read AUM from custom AUM uploaded to that portfolio and normalize performance based on that exposure
If :math:`aum_source` is one of: Long, Short, RiskAumSource.Net,
AumSource.Gross, we take these exposures from the calculated exposures based on daily positions
:math:`NP(L/S)_{t} = SUM( PNL(L/S)_{t}/ ( EXP(L/S)_{t} ) - cPNL(L/S)_{t-1) )
if ( EXP(L/S)_{t} ) - cPNL(L/S)_{t-1)) > 0
else:
1/ SUM( PNL(L/S)_{t}/ ( EXP(L/S)_{t} ) - cPNL(L/S)_{t-1) )`
For each leg, short and long, then:
:math:`NP_{t} = NP(L)_{t} * (EXP(L)_{t} / AUM_{t}) + NP(S)_{t} * (EXP(S)_{t} / AUM_{t}) + 1`
This takes into account varying AUM and adjusts for exposure change due to PNL
where :math:`cPNL(L/S)_{t-1}` is your performance reports cumulative long or short PNL at date t-1
where :math:`PNL(L/S)_{t}` is your performance reports long or short pnl at date t
where :math:`AUM_{t}` is portfolio exposure on date t
where :math:`EXP(L/S)_{t}` is the long or short exposure on date t
"""
start_date = DataContext.current.start_time - relativedelta(1)
end_date = DataContext.current.end_time
start_date = start_date.date()
end_date = end_date.date()
performance_report = PerformanceReport.get(report_id)
if not aum_source:
port = GsPortfolioApi.get_portfolio(
performance_report.position_source_id)
aum_source = port.aum_source if port.aum_source else RiskAumSource.Gross
else:
aum_source = RiskAumSource(aum_source)
constituent_data = performance_report.get_portfolio_constituents(
fields=['assetId', 'pnl', 'quantity', 'netExposure'],
start_date=start_date,
end_date=end_date).set_index('date')
aum_col_name = aum_source.value.lower()
aum_col_name = f'{aum_col_name}Exposure' if aum_col_name != 'custom aum' else 'aum'
# Split into long and short and aggregate across dates
long_side = _return_metrics(
constituent_data[constituent_data['quantity'] > 0],
list(constituent_data.index.unique()), "long")
short_side = _return_metrics(
constituent_data[constituent_data['quantity'] < 0],
list(constituent_data.index.unique()), "short")
# Get aum source data
if aum_source == RiskAumSource.Custom_AUM:
custom_aum = pd.DataFrame(
GsPortfolioApi.get_custom_aum(
performance_report.position_source_id, start_date, end_date))
if custom_aum.empty:
raise MqError(
f'No custom AUM for portfolio {performance_report.position_source_id} between dates {start_date},'
f' {end_date}')
data = pd.DataFrame.from_records(custom_aum).set_index(['date'])
else:
data = performance_report.get_many_measures(
[aum_col_name], start_date, end_date).set_index(['date'])
long_side = long_side.join(data[[f'{aum_col_name}']], how='inner')
short_side = short_side.join(data[[f'{aum_col_name}']], how='inner')
long_side['longRetWeighted'] = (long_side['longMetrics'] - 1) * long_side['exposure'] * \
(1 / long_side[f'{aum_col_name}'])
short_side['shortRetWeighted'] = (short_side['shortMetrics'] - 1) * short_side['exposure'] *\
(1 / short_side[f'{aum_col_name}'])
combined = long_side[['longRetWeighted'
]].join(short_side[['shortRetWeighted']],
how='inner')
combined['normalizedPerformance'] = combined['longRetWeighted'] + combined[
'shortRetWeighted'] + 1
return pd.Series(combined['normalizedPerformance'],
name="normalizedPerformance").dropna()
from gs_quant.session import *
from gs_quant.target.reports import ReportStatus, PositionSourceType, ReportType, ReportParameters, Report
fake_pfr = FactorRiskReport(risk_model_id='AXUS4M',
fx_hedged=True,
report_id='PFRID',
position_source_type=PositionSourceType.Portfolio,
position_source_id='PORTFOLIOID',
report_type=ReportType.Portfolio_Factor_Risk,
status=ReportStatus.done
)
fake_ppa = PerformanceReport(report_id='PPAID',
position_source_type=PositionSourceType.Portfolio,
position_source_id='PORTFOLIOID',
report_type=ReportType.Portfolio_Performance_Analytics,
parameters=None,
status=ReportStatus.done
)
fake_pta = ThematicReport(report_id='PTAID',
position_source_type=PositionSourceType.Portfolio,
position_source_id='PORTFOLIOID',
report_type=ReportType.Portfolio_Thematic_Analytics,
parameters=None,
status=ReportStatus.done
)
factor_risk_results = [
{
'date': '2021-01-02',
'factor': 'factor1',
def normalized_performance(report_id: str,
aum_source: str = None,
*,
source: str = None,
real_time: bool = False,
request_id: Optional[str] = None) -> pd.Series:
"""
Returns the Normalized Performance of a performance report based on AUM source
:param report_id: id of performance report
:param aum_source: source to normalize pnl from, default is the aum source on your portfolio,
if no aum source is set on your portfolio the default is gross
:param source: name of function caller
:param real_time: whether to retrieve intraday data instead of EOD
:param request_id: server request id
:return: portfolio normalized performance
**Usage**
Returns the normalized performance of the portfolio based on AUM source.
If :math:`aum_source` is "Custom AUM":
We read AUM from custom AUM uploaded to that portfolio and normalize performance based on that exposure
If :math:`aum_source` is one of: Long, Short, RiskAumSource.Net,
AumSource.Gross, we take these exposures from the calculated exposures based on daily positions
:math:`NP_{t} = SUM( PNL_{t}/ ( AUM_{t} ) - cPNL_{t-1) ) if ( AUM_{t} ) - cPNL_{t-1) ) > 0 else:
1/ SUM( PNL_{t}/ ( AUM_{t} ) - cPNL_{t-1) )`
This takes into account varying AUM and adjusts for exposure change due to PNL
where :math:`cPNL_{t-1}` is your performance reports cumulative PNL at date t-1
where :math:`PNL_{t}` is your performance reports pnl at date t
where :math:`AUM_{t}` is portfolio exposure on date t
"""
start_date = DataContext.current.start_date
end_date = DataContext.current.end_date
ppa_report = PerformanceReport.get(report_id)
if not aum_source:
port = GsPortfolioApi.get_portfolio(ppa_report.position_source_id)
aum_source = port.aum_source if port.aum_source else RiskAumSource.Net
else:
aum_source = RiskAumSource(aum_source)
aum_col_name = aum_source.value.lower()
aum_col_name = f'{aum_col_name}Exposure' if aum_col_name != 'custom aum' else 'aum'
measures = [aum_col_name, 'pnl'
] if aum_source != RiskAumSource.Custom_AUM else ['pnl']
data = ppa_report.get_many_measures(measures, start_date, end_date)
data.loc[0, 'pnl'] = 0
data['cumulativePnlT-1'] = data['pnl'].cumsum(axis=0)
data = pd.DataFrame.from_records(data).set_index(['date'])
if aum_source == RiskAumSource.Custom_AUM:
custom_aum = pd.DataFrame(
GsPortfolioApi.get_custom_aum(ppa_report.position_source_id,
start_date, end_date))
if custom_aum.empty:
raise MqError(
f'No custom AUM for portfolio {ppa_report.position_source_id} between dates {start_date},'
f' {end_date}')
custom_aum = pd.DataFrame.from_records(custom_aum).set_index(['date'])
data = data.join(custom_aum.loc[:, aum_col_name], how='inner')
if aum_source == RiskAumSource.Short:
data[f'{aum_col_name}'] = -1 * data[f'{aum_col_name}']
data['normalizedExposure'] = data[f'{aum_col_name}'] - data[
'cumulativePnlT-1']
data[
'pnlOverNormalizedExposure'] = data['pnl'] / data['normalizedExposure']
data['normalizedPerformance'] = data['pnlOverNormalizedExposure'].cumsum(
axis=0) + 1
data.loc[data.normalizedExposure < 0,
'normalizedPerformance'] = 1 / data.loc[:,
'normalizedPerformance']
return pd.Series(data['normalizedPerformance'],
name="normalizedPerformance").dropna()
def test_normalized_performance():
idx = pd.date_range('2020-01-02', freq='D', periods=3)
expected = {
RiskAumSource.Net:
pd.Series(data=[1, 1 + 2 / 4, 1 + 6 / 6],
index=idx,
name='normalizedPerformance',
dtype='float64'),
RiskAumSource.Gross:
pd.Series(data=[1, 1 + 2 / 1.2, 1 + 6 / 1.3],
index=idx,
name='normalizedPerformance',
dtype='float64'),
RiskAumSource.Long:
pd.Series(data=[1, 1 + 2 / 1.2, 1 + 6 / 1.3],
index=idx,
name='normalizedPerformance',
dtype='float64'),
RiskAumSource.Short:
pd.Series(data=[1, 1 + 2 / 1.2, 1 + 6 / 1.3],
index=idx,
name='normalizedPerformance',
dtype='float64'),
RiskAumSource.Custom_AUM:
pd.Series(data=[1, 1 + 2 / 2.2, 1 + 6 / 2.4],
index=idx,
name='normalizedPerformance',
dtype='float64')
}
with DataContext(datetime.date(2020, 1, 1), datetime.date(2019, 1, 3)):
for k, v in expected.items():
df = MarketDataResponseFrame(data=ppa_data, dtype="float64")
replace = Replacer()
# mock GsPortfolioApi.get_reports()
mock = replace(
'gs_quant.api.gs.portfolios.GsPortfolioApi.get_reports',
Mock())
mock.return_value = [
Report.from_dict({
'id': 'RP1',
'positionSourceType': 'Portfolio',
'positionSourceId': 'MP1',
'type': 'Portfolio Performance Analytics',
'parameters': {
'transactionCostModel': 'FIXED'
}
})
]
# mock PerformanceReport.get_portfolio_constituents()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_portfolio_constituents',
Mock())
mock.return_value = MarketDataResponseFrame(data=constituents_data,
dtype="float64")
# mock PerformanceReport.get_many_measures()
mock = replace(
'gs_quant.markets.report.PerformanceReport.get_many_measures',
Mock())
mock.return_value = df
# mock PerformanceReport.get_custom_aum()
mock = replace(
'gs_quant.api.gs.portfolios.GsPortfolioApi.get_custom_aum',
Mock())
mock.return_value = aum
# mock PerformanceReport.get()
mock = replace('gs_quant.markets.report.PerformanceReport.get',
Mock())
mock.return_value = PerformanceReport(
report_id='RP1',
position_source_type='Portfolio',
position_source_id='MP1',
report_type='Portfolio Performance Analytics',
parameters=ReportParameters(transaction_cost_model='FIXED'))
actual = mr.normalized_performance('MP1', k.value)
assert all(actual.values == v.values)
replace.restore()
def normalized_performance(report_id: str, leg: str = None, *, source: str = None,
real_time: bool = False, request_id: Optional[str] = None) -> pd.Series:
"""
Returns the Normalized Performance of a performance report based on AUM source
:param report_id: id of performance report
:param leg: short or long
:param source: name of function caller
:param real_time: whether to retrieve intraday data instead of EOD
:param request_id: server request id
:return: portfolio normalized performance
**Usage**
Returns the normalized performance of the portfolio.
:math:`NP(L/S)_{t} = SUM( PNL(L/S)_{t}/ ( EXP(L/S)_{t} ) - cPNL(L/S)_{t-1) )
if ( EXP(L/S)_{t} ) > 0
else:
1/ SUM( PNL(L/S)_{t}/ ( EXP(L/S)_{t} ) - cPNL(L/S)_{t-1) )`
For each leg, short and long, then:
:math:`NP_{t} = NP(L)_{t} * SUM(EXP(L)) / SUM(GROSS_EXP) + NP(S)_{t} * SUM(EXP(S)) / SUM(GROSS_EXP) + 1`
If leg is short, set SUM(EXP(L)) to 0, if leg is long, set SUM(EXP(S)) to 0
where :math:`cPNL(L/S)_{t-1}` is your performance reports cumulative long or short PNL at date t-1
where :math:`PNL(L/S)_{t}` is your performance reports long or short pnl at date t
where :math:`GROSS_EXP_{t}` is portfolio gross exposure on date t
where :math:`EXP(L/S)_{t}` is the long or short exposure on date t
"""
start_date = DataContext.current.start_time
end_date = DataContext.current.end_time
start_date = (start_date - BDay(1)).date()
end_date = end_date.date()
performance_report = PerformanceReport.get(report_id)
constituent_data = performance_report.get_portfolio_constituents(
fields=['assetId', 'pnl', 'quantity', 'netExposure'], start_date=start_date, end_date=end_date).set_index(
'date')
if leg:
if leg.lower() == "long":
constituent_data = constituent_data[constituent_data['quantity'] > 0]
if leg.lower() == "short":
constituent_data = constituent_data[constituent_data['quantity'] < 0]
# Split into long and short and aggregate across dates
long_side = _return_metrics(constituent_data[constituent_data['quantity'] > 0],
list(constituent_data.index.unique()), "long")
short_side = _return_metrics(constituent_data[constituent_data['quantity'] < 0],
list(constituent_data.index.unique()), "short")
short_exposure = sum(abs(short_side['exposure']))
long_exposure = sum(long_side['exposure'])
gross_exposure = short_exposure + long_exposure
long_side['longRetWeighted'] = (long_side['longMetrics'] - 1) * (long_exposure / gross_exposure)
short_side['shortRetWeighted'] = (short_side['shortMetrics'] - 1) * (short_exposure / gross_exposure)
combined = long_side[['longRetWeighted']].join(short_side[['shortRetWeighted']], how='inner')
combined['normalizedPerformance'] = combined['longRetWeighted'] + combined['shortRetWeighted'] + 1
return pd.Series(combined['normalizedPerformance'], name="normalizedPerformance").dropna()
