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-rw-r--r--openbb_platform/providers/tmx/openbb_tmx/utils/helpers.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/openbb_platform/providers/tmx/openbb_tmx/utils/helpers.py b/openbb_platform/providers/tmx/openbb_tmx/utils/helpers.py
index 4e3c01369ee..cfe79d638de 100644
--- a/openbb_platform/providers/tmx/openbb_tmx/utils/helpers.py
+++ b/openbb_platform/providers/tmx/openbb_tmx/utils/helpers.py
@@ -635,7 +635,7 @@ async def download_eod_chains(
]
data.columns = cols
-
+ data["underlying_symbol"] = symbol + ":CA"
data["expiration"] = pd.to_datetime(data["expiration"], format="%Y-%m-%d")
data["eod_date"] = pd.to_datetime(data["eod_date"], format="%Y-%m-%d")
data["impliedVolatility"] = 0.01 * data["impliedVolatility"]