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-rw-r--r--python/analytics/option.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/python/analytics/option.py b/python/analytics/option.py
index 14e64d54..0a0dd2b9 100644
--- a/python/analytics/option.py
+++ b/python/analytics/option.py
@@ -213,7 +213,10 @@ class BlackSwaption(ForwardIndex):
if self._original_pv is None:
raise ValueError("original pv not set")
else:
- return self.pv - self._original_pv
+ if self.index.trade_date > self.forward_date: #TODO: do the right thing
+ return 0 - self._original_pv
+ else:
+ return self.pv - self._original_pv
@property
def delta(self):
@@ -470,7 +473,6 @@ class VolatilitySurface(ForwardIndex):
quotedate, source, option_type, model = surface_id
quotes = self._quotes[(self._quotes.quotedate == quotedate) &
(self._quotes.quote_source == source)]
-
self._index.ref = quotes.ref.iat[0]
if model == "black":
swaption_class = BlackSwaption