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-rw-r--r--python/risk/tranches.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/python/risk/tranches.py b/python/risk/tranches.py
index 30d7f66f..55f4ce4d 100644
--- a/python/risk/tranches.py
+++ b/python/risk/tranches.py
@@ -80,10 +80,11 @@ def insert_tranche_portfolio(portf, conn):
try:
theta = trade.theta(method="TLP")
except (ValueError, RuntimeError) as e:
+ # when there is less than one year left we computed the theta to maturity
logger.info(str(e))
theta = (
- trade.clean_pv / trade.notional / trade.duration
- + trade.tranche_running * 1e-4
+ trade.clean_pv / trade.notional
+ + trade.tranche_running * 1e-4 * trade.duration
)
c.execute(
sql_str,