diff --git a/zipline/pipeline/loaders/blaze/core.py b/zipline/pipeline/loaders/blaze/core.py
index 925faddf..06b59cf4 100644
--- a/zipline/pipeline/loaders/blaze/core.py
+++ b/zipline/pipeline/loaders/blaze/core.py
@@ -1175,7 +1175,11 @@ def get_materialized_checkpoints(checkpoints, colnames, lower_dt, odo_kwargs):
     """
     if checkpoints is not None:
         ts = checkpoints[TS_FIELD_NAME]
-        checkpoints_ts = odo(ts[ts <= lower_dt].max(), pd.Timestamp)
+        checkpoints_ts = odo(
+            ts[ts <= lower_dt].max(),
+            pd.Timestamp,
+            **odo_kwargs
+        )
         if pd.isnull(checkpoints_ts):
             materialized_checkpoints = pd.DataFrame(columns=colnames)
             lower = None
diff --git a/zipline/pipeline/loaders/earnings_estimates.py b/zipline/pipeline/loaders/earnings_estimates.py
index b28991d4..896560c1 100644
--- a/zipline/pipeline/loaders/earnings_estimates.py
+++ b/zipline/pipeline/loaders/earnings_estimates.py
@@ -532,7 +532,7 @@ class EarningsEstimatesLoader(PipelineLoader):
             level=0,
             inplace=True,
         )
-        stacked_last_per_qtr = stacked_last_per_qtr.sort(
+        stacked_last_per_qtr = stacked_last_per_qtr.sort_values(
             EVENT_DATE_FIELD_NAME,
         )
         stacked_last_per_qtr[EVENT_DATE_FIELD_NAME] = pd.to_datetime(