diff --git a/runtime/src/bank/pyth/accumulator.rs b/runtime/src/bank/pyth/accumulator.rs
index 300f94006d..ee86f9c559 100644
--- a/runtime/src/bank/pyth/accumulator.rs
+++ b/runtime/src/bank/pyth/accumulator.rs
@@ -422,10 +422,13 @@ pub fn update_v2(bank: &Bank) -> std::result::Result<(), AccumulatorUpdateErrorV
         v2_messages.push(publisher_stake_caps_message);
     }
 
+    let mut measure = Measure::start("extract_batch_publish_prices");
     let mut new_prices = batch_publish::extract_batch_publish_prices(bank).unwrap_or_else(|err| {
         warn!("extract_batch_publish_prices failed: {}", err);
         HashMap::new()
     });
+    measure.stop();
+    debug!("batch publish: loaded prices in {}us", measure.as_us());
 
     let mut measure = Measure::start("update_v2_aggregate_price");
     for (pubkey, mut account) in accounts {
diff --git a/runtime/src/bank/pyth/tests/batch_publish_tests.rs b/runtime/src/bank/pyth/tests/batch_publish_tests.rs
index 59bb3e0856..b26f547976 100644
--- a/runtime/src/bank/pyth/tests/batch_publish_tests.rs
+++ b/runtime/src/bank/pyth/tests/batch_publish_tests.rs
@@ -66,6 +66,13 @@ fn test_batch_publish() {
             &[
                 PublisherPrice::new(1, 1, 10, 2).unwrap(),
                 PublisherPrice::new(2, 1, 20, 3).unwrap(),
+                // Attempt to publish with price_index == 0,
+                // but it will not be applied.
+                PublisherPrice {
+                    trading_status_and_feed_index: 0,
+                    price: 30,
+                    confidence: 35,
+                },
             ],
         ),
         generate_publisher(
@@ -129,7 +136,7 @@ fn test_batch_publish() {
         generate_price(b"seeds_1", 1),
         generate_price(b"seeds_2", 2),
         generate_price(b"seeds_3", 3),
-        generate_price(b"seeds_4", 4),
+        generate_price(b"seeds_4", 0),
     ];
 
     bank = new_from_parent(&Arc::new(bank)); // Advance slot 1.
@@ -138,10 +145,16 @@ fn test_batch_publish() {
     let new_price_feed1_account = bank.get_account(&prices_with_messages[0].0).unwrap();
     let new_price_feed1_data: &PriceAccount = from_bytes(new_price_feed1_account.data());
     assert_eq!(new_price_feed1_data.comp_[0].latest_.price_, 10);
+    assert_eq!(new_price_feed1_data.comp_[0].latest_.conf_, 2);
+    assert_eq!(new_price_feed1_data.comp_[0].latest_.status_, 1);
     assert_eq!(new_price_feed1_data.comp_[1].latest_.price_, 15);
 
     let new_price_feed2_account = bank.get_account(&prices_with_messages[1].0).unwrap();
     let new_price_feed2_data: &PriceAccount = from_bytes(new_price_feed2_account.data());
     assert_eq!(new_price_feed2_data.comp_[0].latest_.price_, 20);
     assert_eq!(new_price_feed2_data.comp_[1].latest_.price_, 25);
+
+    let new_price_feed4_account = bank.get_account(&prices_with_messages[3].0).unwrap();
+    let new_price_feed4_data: &PriceAccount = from_bytes(new_price_feed4_account.data());
+    assert_eq!(new_price_feed4_data.comp_[0].latest_.price_, 0);
 }